List of Arrow characters

The main cast featured in a promotional image for the second season. From left to right, Laurel (Cassidy), Slade (Bennett), Felicity (Rickards), Oliver (Amell), John (Ramsey), Thea (Holland), and Roy (Haynes).

Arrow is an American television series developed by Greg Berlanti, Marc Guggenheim, and Andrew Kreisberg, based on the DC Comics character Green Arrow. Many of the other characters appearing in the series are also based on DC Comics characters. The series premiered on October 10, 2012 in the United States on The CW television network, and is currently in its seventh season.

Arrow follows the story of billionaire playboy Oliver Queen (Stephen Amell). He is discovered after being stranded for five years on an isolated island. When he returns home, Queen secretly becomes a bow-and-arrow-wielding vigilante in order to honor his father's legacy and atone for his family's sins.

Throughout the series, he is joined by others in his quest to protect Star City (formerly Starling City). The characters that eventually aid Queen's vigilante efforts include: former soldier John Diggle (David Ramsey), I.T. expert and skilled hacker Felicity Smoak (Emily Bett Rickards), former assassin Sara Lance (Caity Lotz), aspiring vigilante Roy Harper (Colton Haynes), Oliver's sister Thea / Speedy (Willa Holland), and attorney-turned-vigilante Laurel Lance (Katie Cassidy). The group also receives support from Quentin Lance (Paul Blackthorne) who works at the police department. During the first five seasons of the shows, characters from Oliver's past appear in a separate story arc based on Oliver's flashbacks, which highlight parallels from Oliver's history that shape events in the main story. Starting season seven, a series of flash-forwards focus on Oliver's son William and Roy Harper, exploring how present events would affect their future and Green Arrow's legacy.

The following is a list of characters who have appeared in the television series. Many are named after or based on the DC Comics characters.

Overview

Character	Portrayed by	First appearance	Seasons
			1	2	3	4	5	6	7
Main characters
Oliver Queen / Arrow / Green Arrow	Stephen Amell	"Pilot"	Main
Laurel Lance / Black Canary (Earth-1)	Katie Cassidy		Main				Guest		Does not appear
Laurel Lance / Black Siren (Earth-2)		"What We Leave Behind"	Does not appear				Recurring	Main
Tommy Merlyn	Colin Donnell	"Pilot"	Main	Guest		Does not appear		Guest	Does not appear
John Diggle / Spartan	David Ramsey		Main
Thea Queen / Speedy	Willa Holland		Main						Does not appear
Moira Queen	Susanna Thompson		Main		Voice only	Does not appear	Guest	Does not appear
Quentin Lance	Paul Blackthorne		Main						Does not appear
Felicity Smoak / Overwatch	Emily Bett Rickards	"Lone Gunmen"	Recurring	Main
Roy Harper / Arsenal	Colton Haynes	"Dodger"	Recurring	Main		Guest	Does not appear	Guest	Main
Slade Wilson / Deathstroke	Manu Bennett	"Betrayal"	Recurring	Main	Guest	Does not appear	Guest		Does not appear
Malcolm Merlyn / Dark Archer	John Barrowman	"An Innocent Man"	Recurring		Main		Recurring	Does not appear
Curtis Holt / Mister Terrific	Echo Kellum	"The Candidate"	Does not appear			Recurring	Main
Adrian Chase / Prometheus	Josh Segarra	"A Matter of Trust"	Does not appear				Main	Guest	Does not appear
Rene Ramirez / Wild Dog	Rick Gonzalez	"Legacy"	Does not appear				Recurring	Main
Dinah Drake / Black Canary	Juliana Harkavy	"Who Are You?"	Does not appear				Recurring	Main
Ricardo Diaz / Dragon	Kirk Acevedo	"Promises Kept"	Does not appear					Recurring	Main
Recurring characters
Walter Steele	Colin Salmon	"Pilot"	Recurring		Does not appear
Raisa	Kathleen Gati		Guest	Does not appear				Recurring	Does not appear
Robert Queen	Jamey Sheridan		Recurring	Does not appear	Guest			Does not appear
Joanna De La Vega	Annie Ilonzeh		Recurring	Guest	Does not appear
Lucas Hilton	Roger Cross		Recurring	Guest		Does not appear
Sara Lance / Canary / White Canary	Jacqueline MacInnes Wood		Guest	Does not appear
	Caity Lotz	"City of Heroes"	Does not appear	Recurring			Guest		Does not appear
Chien Na Wei / China White	Kelly Hu	"Honor Thy Father"	Recurring	Guest		Does not appear	Guest	Does not appear
Yao Fei Gulong	Byron Mann	"Lone Gunmen"	Recurring	Does not appear			Guest	Does not appear
Carly Diggle	Christie Laing		Recurring	Does not appear
Edward Fyers	Sebastian Dunn	"Damaged"	Recurring	Does not appear
Kate Spencer	Chelah Horsdal		Guest	Recurring	Does not appear
McKenna Hall	Janina Gavankar	"Vertigo"	Recurring	Does not appear
Frank Pike	Adrian Holmes	"Betrayal"	Guest	Recurring	Guest		Recurring	Guest	Does not appear
Shado	Celina Jade	"The Odyssey"	Recurring		Does not appear	Guest	Does not appear	Guest	Does not appear
Frank Chen	Chin Han	"Dodger"	Recurring	Does not appear
Lyla Michaels / Harbinger	Audrey Marie Anderson	"Unfinished Business"	Guest	Recurring				Guest
Isabel Rochev / Ravager	Summer Glau	"City of Heroes"	Does not appear	Recurring	Does not appear
Adam Donner	Dylan Bruce		Does not appear	Recurring	Does not appear
Bethany Snow	Keri Adams		Does not appear	Recurring					Guest
Sebastian Blood / Brother Blood	Kevin Alejandro	"Identity"	Does not appear	Recurring	Does not appear
Jean Loring	Teryl Rothery	"Broken Dolls"	Does not appear	Recurring	Does not appear			Guest	Does not appear
Sin	Bex Taylor-Klaus		Does not appear	Recurring	Guest	Does not appear
Daily	Jesse Hutch	"Crucible"	Does not appear	Recurring	Does not appear
Anatoli Knyazev	David Nykl		Does not appear	Recurring	Does not appear		Recurring		Does not appear
Dr. Anthony Ivo	Dylan Neal	"League of Assassins"	Does not appear	Recurring	Does not appear
Amanda Waller / Mockingbird	Cynthia Addai-Robinson	"Keep Your Enemies Closer"	Does not appear	Recurring		Guest	Does not appear
Nyssa al Ghul	Katrina Law	"Heir to the Demon"	Does not appear	Guest	Recurring		Guest		Does not appear
Maseo Yamashiro / Sarab	Karl Yune	"The Calm"	Does not appear		Recurring	Does not appear
Tatsu Yamashiro / Katana	Rila Fukushima		Does not appear		Recurring	Guest	Does not appear
Ted Grant / Wildcat	J. R. Ramirez		Does not appear		Recurring	Does not appear
Ray Palmer / The Atom	Brandon Routh		Does not appear		Recurring		Guest	Does not appear
Sara Diggle	Unknown		Does not appear		Recurring		Does not appear
Akio Yamashiro	Brandon Nomura		Does not appear		Recurring	Does not appear
Ra's al Ghul	Matt Nable	"The Magician"	Does not appear		Recurring	Does not appear
Donna Smoak	Charlotte Ross	"The Secret Origin of Felicity Smoak"	Does not appear		Guest	Recurring	Does not appear	Guest	Does not appear
Chase	Austin Butler	"Draw Back Your Bow"	Does not appear		Recurring	Does not appear
Matthew Schrieve	Marc Singer	"The Return"	Does not appear		Recurring	Does not appear
Andy Diggle	Eugene Byrd		Does not appear		Guest	Recurring	Does not appear
Michael Amar / Murmur	Adrian Glynn McMorran	"The Offer"	Does not appear		Guest	Recurring	Does not appear
Damien Darhk	Neal McDonough	"Green Arrow"	Does not appear			Recurring	Guest	Does not appear
Baron Reiter	Jimmy Akingbola	"The Candidate"	Does not appear			Recurring	Does not appear
Taiana Venediktov	Elysia Rotaru		Does not appear			Recurring	Does not appear
Lonnie Machin / Anarky	Alexander Calvert		Does not appear			Recurring	Guest	Does not appear
Conklin	Ryan Robbins	"Restoration"	Does not appear			Recurring	Does not appear
Alex Davis	Parker Young	"Haunted"	Does not appear			Recurring	Does not appear
William Clayton	Jack Moore	"Legends of Yesterday"	Does not appear			Recurring
Ruvé Adams	Janet Kidder	"Dark Waters"	Does not appear			Recurring	Does not appear
Paul Holt	Chernier Hundal		Does not appear			Recurring	Guest	Does not appear
Noah Kuttler / Calculator	Tom Amandes	"Unchained"	Does not appear			Recurring	Does not appear	Guest	Does not appear
Dr. Elisa Schwartz	Venus Terzo		Does not appear			Guest		Recurring	Does not appear
Evelyn Sharp / Artemis	Madison McLaughlin	"Canary Cry"	Does not appear			Guest	Recurring	Does not appear
Tobias Church	Chad L. Coleman	"Legacy"	Does not appear				Recurring	Does not appear
Billy Malone	Tyler Ritter		Does not appear				Recurring	Does not appear
Viktor	Mike Dopud		Does not appear				Recurring	Does not appear
Rory Regan / Ragman	Joe Dinicol	"The Recruits"	Does not appear				Recurring	Does not appear
Susan Williams	Carly Pope	"A Matter of Trust"	Does not appear				Recurring	Does not appear
Konstantin Kovar	Dolph Lundgren	"So It Begins"	Does not appear				Recurring	Does not appear
Ishmael Gregor	David Meunier		Does not appear				Recurring	Does not appear
Talia al Ghul	Lexa Doig	"Who Are You?"	Does not appear				Recurring	Does not appear
Alena	Kacey Rohl	"Second Chances"	Does not appear				Recurring	Guest	Does not appear
Vincent Sobel / Vigilante	Clayton Chitty		Does not appear				Recurring	Does not appear
	Johann Urb	"Deathstroke Returns"	Does not appear					Recurring	Does not appear
Nick Anastas	Evan Roderick		Does not appear					Recurring	Guest
Zoe Ramirez	Eliza Faria	"Spectre of the Gun"	Does not appear				Guest	Recurring	Guest
Samandra Watson	Sydelle Noel	"Tribute"	Does not appear					Recurring	Guest
Cayden James	Michael Emerson	"Reversal"	Does not appear					Recurring	Does not appear
Sheck	Tobias Jelinek		Does not appear					Recurring	Does not appear
Sam Armand	Pej Vahdat	"Thanksgiving"	Does not appear					Recurring	Does not appear
Kimberly Hill	Tina Huang	"All for Nothing"	Does not appear					Recurring	Does not appear

Main characters

Oliver Queen / Green Arrow

Main article: Oliver Queen (Arrow)

Stephen Amell

Oliver Jonas "Ollie" Queen (portrayed by Stephen Amell; season 1–present) is the main protagonist of the series. He is based on the DC Comics character of the same name.

In season one, Oliver returns to Starling City after being presumed dead for five years, shipwrecked on the remote island of Lian Yu following the loss of his family yacht. He lives a dual life—rich playboy by day and vigilante by night, targeting individuals whose names appear in a notebook given to him by his now-deceased father, Robert Queen. He struggles to find a balance between his quest and reconnecting with his family (his sister Thea Queen and mother Moira Queen) and friends (best friend Tommy Merlyn and ex-girlfriend Laurel Lance).

In flashbacks set five years earlier, Oliver, Robert, and Sara Lance are aboard the Queen's Gambit when bad weather causes it to sink. During the shipwreck, Sara is sucked out to sea. Oliver and his father escape on a life raft but Robert shoots himself to increase Oliver's chances of survival, asking Oliver to "right his wrongs". Oliver eventually lands the raft on an island called Lian Yu. He soon discovers that he is not alone on the island as he is hunted by a mercenary group. With the help of allies, Slade Wilson, Yao Fei, and Shado, he begins to learn the skills needed to survive.

During season one, John Diggle and Felicity Smoak both become involved in his crusade. The vigilante team ultimately realizes the list of names is connected to a larger conspiracy called "The Undertaking", a scheme orchestrated by Malcolm Merlyn to destroy the poor and crime-ridden neighborhood of the Glades. Oliver fights and supposedly kills Malcolm but The Undertaking succeeds, leaving the Glades largely destroyed and 503 dead including Tommy Merlyn.

In season two, Oliver returns to Starling City after spending time at Lian Yu to work through his grief. He now goes by the alias "Arrow" and, in honor of Tommy, vows never to kill again. He fights criminals who take advantage of the Glades after its destruction, while trying to redeem himself as a hero, but is challenged when those closest to him are endangered. He co-administers Queen Consolidated with Isabel Rochev and becomes friends with Alderman Sebastian Blood. Oliver finds himself investigating a larger plot orchestrated by Slade Wilson, involving "Mirakuru", a strength-enhancing drug. It is Slade's intention to destroy everything and everyone Oliver cares for. Sebastian and Isabel are also working for Slade and help bankrupt Oliver, causing him to lose his home and business. Oliver gets help from Sara Lance, now the vigilante "Canary", and takes Thea's boyfriend, Roy Harper, as a protégé. After Felicity injects Slade with the Mirakuru cure, Oliver defeats Slade and locks him in an underground prison on Lian Yu. In flashbacks, Oliver is hunted by Dr. Ivo's armed crew who seek the Mirakuru and he accidentally causes the death of Shado, his lover on the island. Slade also loved Shado, which explains his vendetta against Oliver. A flashback before the shipwreck reveals that Oliver impregnated a college classmate named Samantha Clayton, and Moira paid Samantha to tell Oliver the child died and to move to Central City, leaving him unaware of his impending fatherhood.

In season three, Oliver has become a public hero to the citizens of Starling City and has taken Roy on as a full sidekick. He lives in his foundry safe-house, having lost his mansion. Oliver is faced with the moral question of whether he can be Oliver Queen and live his life while the city needs the Arrow. This is further challenged when he realizes he is in love with Felicity. She has caught the attention of Ray Palmer, the new head of Queen Consolidated. After Thea returns to Starling City, they decide to reopen their nightclub together. Oliver is also inadvertently embroiled in a conflict with Raʾs al Ghul due to Malcolm's manipulations. During a fight with Raʾs, he suffers a mortal wound and nearly dies, but is saved by Maseo and Tatsu Yamashiro. Raʾs demands that Oliver become his heir because he is the only man to survive a death match against him, fulfilling a prophecy of the League of Assassins. When Oliver rejects the offer, Raʾs tries to force him by killing people while posing as the Arrow. When Raʾs nearly kills Thea, Oliver chooses to join the League, abandoning his former identity to become Al Sah-him (Template:Lang-ar; "Arrow"); he pretends to be a darker and crueler version of himself in order to get closer to Raʾs and destroy the League from within. Raʾs has Oliver marry his daughter, Nyssa al Ghul, to keep his bloodline in charge of the League. Oliver later kills Raʾs and inherits the mantle but immediately passes it to Malcolm. He decides to retire from being the Arrow and live with Felicity, knowing that Laurel, Diggle, Ray, and Thea will protect the city in his absence. The season flashbacks explore Oliver's time in Hong Kong where, after witnessing his combat capabilities on the island, Amanda Waller forces him to become an A.R.G.U.S. agent using the Yamashiros as his handlers. It is revealed that Oliver returned to Starling City while on a mission where he discovered Thea's drug problems, witnessed the start of the relationship between Laurel and Tommy, and seeing John Diggle and Felicity Smoak for the first time.

In season four, Oliver is called from retirement to help Laurel and Thea stop a group known as "The Ghosts" led by Damien Darhk, leader of H.I.V.E. Oliver now goes by the name "Green Arrow", ostensibly a new vigilante following in the footsteps of the Arrow, who Star City (formerly Starling City) believes to have died. He plans to propose to Felicity and run for mayor. While on a mission with Barry Allen in Central City, Oliver meets Samantha Clayton's son, William, and ultimately learns that he is William's father. Samantha refuses to grant Oliver full access because of his playboy past and her ill feelings toward his mother. The revelations of his fatherhood complicates Oliver's relationship with Felicity and his duty as Green Arrow, and threatens to jeopardize his mayoral campaign. When a H.I.V.E. attack leaves Felicity permanently paraplegic, Oliver's fight with Darhk becomes a vendetta. Oliver also discovers that Thea is dying because the Pit's restorative effect on her is waning; Nyssa offers a cure in exchange for killing Malcolm. In a fight, Oliver cuts off Malcolm's left hand and gives the Demon's Head ring to Nyssa in exchange for the cure. Nyssa disbands the League of Assassins, causing Malcolm to seek vengeance against Oliver. As a result, Darhk kidnaps William, Oliver's relationship with Felicity becomes estranged, and Oliver is forced to resign from his mayoral campaign. After Darhk is successfully prosecuted, Malcolm, with help from Andy Diggle, aids Darhk's escape by restoring his magic, and fatally stabs Laurel with Oliver's arrow. Laurel dies of her injuries moments after admitting that she still loves Oliver, who is devastated. During his quest to stop Darhk, Oliver learns that the pure forces of light can counter Darhk's powers and that H.I.V.E. plans to rule a post-apocalyptic world. At the end of the season Oliver stops Darhk's plan to destroy the world and kills him. With the death of the previous mayor, Ruve Adams, Oliver becomes acting mayor of Star City. The season's flashbacks explore Oliver's training with A.R.G.U.S. and his infiltration of the Shadowspire organization on Lian Yu.

In season five, Oliver initially returns to killing because he blames himself for Laurel's death. He later recruits a team of vigilantes to help balance his double life as Green Arrow and Star City's mayor. In the process, he meets metahuman vigilante Dinah Drake, and sees her as a candidate to succeed Laurel as Black Canary, inspired to continue Laurel's legacy after encountering her evil Earth-2 counterpart. Oliver is stalked by a mysterious archer, Prometheus, who seeks vengeance for the death of his father by "The Hood". The season's flashbacks examine Oliver's time in Russia, where he joins the Bratva (Russian mafia) as part of an assassination plot against Konstantin Kovar and explores the criminal fraternity in the process. One of Raʾs al Ghul's children, Talia al Ghul, trains Oliver and gives him green garb based on the League of Assassin's uniforms. In the present, Talia seeks vengeance against Oliver for killing her father and allies with Prometheus, who was another of her students. After a series of battles with Prometheus, leading to the abductions of Oliver's family and friends, including Samantha and William, Oliver defeats his enemy at Lian Yu, though Prometheus kills himself afterward. William also learns of his relation to Oliver and discovers his father's secrets.

In season six, despite Oliver's victory, the final battle with Prometheus killed William's mother and left Thea in a coma. Oliver now struggles to raise William himself, who initially blames Oliver for his mother's death and tries to keep his distance from, but in time slowly begins to bond with. Oliver slowly tries to rekindle his romance with Felicity, and hopes that William will accept her. Oliver's secrets are also at risk when a photo of him unmasked is leaked by an unknown party (later revealed to be Ricardo Diaz) and is broadcast throughout the media, leading to him being investigated by the FBI and subsequently facing enough criminal charges to land him behind bars, which leads him to step down as the Green Arrow and pass the title to Diggle. Afterwards, Thea recovers from her coma, and following the conflict with Earth-X, Oliver and Felicity are married, after which Felicity accepts the role of stepmother to William. In addition, former HELIX leader Cayden James holds the Green Arrow responsible for his son's death despite Oliver's denial of any involvement, leading them to become enemies, and Oliver later discovers that Diaz is manipulating them all. Eventually, Oliver is made aware of the injury Diggle suffered during his time standing in for him, after which he resumes his duties as the Green Arrow, which with Felicity's help, William gradually becomes more accepting of. Because of Diaz's machinations, evidences begin to appear proving that both the Arrow and the Green Arrow are the same person and jeopardizing Oliver; Christopher Chance disguised himself as Tommy Merlyn and tells Star City that he is the Green Arrow, saving Oliver from imprisonment. Oliver later came clean to FBI agent Samandra Watson about him being Green Arrow and agrees to turn himself in to her in exchange that the FBI helps Team Arrow apprehend Ricardo Diaz's politician and police allies. The resulting fight with Ricardo Diaz ended with Ricardo getting away after wounding Quentin Lance and getting knocked off the building by Black Siren. Afterwards, Oliver confesses his identity to the FBI while mentioning having dealt a crippling blow to Ricardo's empire and asks that his friends and allies continue to save Star City in his absence. Oliver is then seen being incarcerated in Slabside Maximum Security Prison.

In season seven, Oliver tries to get his sentence reduced for good behaviors in hopes to return to his family, but is complicated by some of his old enemies who are imprisoned with him as well as some inmates who are secretly allied with Ricardo Diaz. He learns that there is another highly skilled archer battling criminals in Star City, whom the media dubs as the new Green Arrow owing to the vigilante's appearance and tactics parallel Oliver's alter-ego's. In addition, he had to get info from fellow inmate Brick on where the inmate called the "Demon" is located after learning that the "Demon" is on Ricardo Diaz's side. He learns from Brick after defeating Derek Sampson in a prison fight that the "Demon" is on Level 2 of Slabside Maximum Security Prison causing Oliver to do things to get him reassigned there.. In flash-forwards, it is referred that Oliver is still with Felicity after over twenty years of their marriage, and that the Queen family regained their wealth with his wife runs his family's former company. However, an unknown circumstance forced the couple sending William to Roy Harper; together, they discover Oliver's buried arsenal and instruction on Lian Yu.

A villainous parallel universe doppelgänger, Dark Arrow from Earth-X, is introduced in season six, during the crossover event "Crisis on Earth-X". He is the Führer of the Nazi-ruled Earth and married to Overgirl, Supergirl's doppelgänger. He is enemies with General Winn Schott (Winn Schott's doppelgänger), the resistance movement leader of the Freedom Fighters and heroes include Earth-X's Guardian / James Olsen (James Olsen's doppelgänger), Citizen Cold / Leonard Snart (Leonard Snart's Earth-X's doppelgänger), and The Ray / Ray Terrill (Earth-1's displaced superhero). This Oliver is also the leader of Earth-X's supervillain team New Reichsmen which Overgirl, Prometheus (Tommy Merlyn's doppelgänger) and a time remnant version of Eobard Thawne are also members. During the final battle with the Green Arrow's allies, though both archers are equally matched in skills, the Dark Arrow was later killed by Green Arrow after being distracted from his wife's explosive death, giving Oliver the chance to fire an arrow into his doppelgänger's chest.

Laurel Lance / Black Canary / Black Siren

Further information: Black Canary

Katie Cassidy

Dinah Laurel Lance (portrayed by Katie Cassidy; main seasons 1–4, 6–present; recurring season 5) is an assistant district attorney and Oliver Queen's ex-girlfriend. She is based on the DC Comics character of the same name.

In season one, she is a lawyer for legal aid firm CNRI and Tommy Merlyn's girlfriend. When Oliver returns, she blames him for the death of her sister, Sara. She gradually comes to accept him upon learning of his suffering on Lian Yu, and remembering her sister's rebellious faults. This puts Laurel at odds with her father, Quentin. She occasionally works with the Hood/Arrow—unaware that he is Oliver—with cases the courts are unwilling to move on. Oliver and Laurel eventually rekindle their relationship after Tommy breaks up with her. Tommy dies saving Laurel when CNRI is destroyed along with much of the Glades.

In season two, Laurel is hired as an assistant district attorney, assigned to prosecute Moira Queen. Because of guilt over Tommy's death, she and Oliver decide to remain friends, and Laurel begins taking drugs and drinking while pushing friends and family away. Laurel eventually chooses sobriety after an argument with Oliver. Inspired by Sara's vigilante alter-ego, Canary, she regains her job as assistant district attorney. Learning from Slade Wilson that Oliver is the Arrow, Laurel confronts Oliver and decides to keep his secret, also deducing Sara's secret.

In season three, Laurel works to prosecute the criminals Oliver catches. Sara returns to Starling City and is killed in front of Laurel, who makes an amateurish attempt to replace her as the Canary. Oliver refuses to train her, so Laurel seeks former boxer and vigilante Ted Grant/Wildcat's help with combat training. Laurel does not tell Quentin about Sara's death until a near-death experience, resulting in their estrangement. She wears Sara's Canary jacket and eventually becomes the Black Canary, partnering with Roy Harper. She learns that Malcolm is directly responsible for Sara's murder and tries to avenge Sara and Tommy's deaths. Nyssa saves her from Malcolm and furthers her training. Laurel gradually becomes a skilled combatant and Cisco Ramon provides her with an ultrasonic collar using components from both Sara's and Hartley Rathaway's weapons, improving Laurel's tactics with sonic weaponry. This collar, dubbed the “Canary Cry,” becomes her primary weapon used to disorient enemies with an overwhelming scream, while Team Arrow use ear-pieces to shield them from the effect. After Raʾs al Ghul's defeat and Oliver's retirement, Laurel remains on Team Arrow defending Starling City.

In season four, Laurel and Thea realize they are outmatched against H.I.V.E. and they bring Oliver back. Laurel hopes to revive Sara in the same way Thea was resurrected; with help from Oliver and John Constantine, Laurel retrieves Sara's soul from the afterlife. Laurel discovers that Damien Darhk is extorting her father to work with H.I.V.E. Laurel is further frustrated at Oliver when she learns that he cheated on her, resulting in his having a son named William, but has no ill feelings towards William's mother, Samantha. During Darhk's attempted breakout, Laurel is stabbed with an arrow by Darhk as revenge against her father's betrayal. She later dies after making Oliver keep a promise to not let her be the last Canary, and confessing that she still loves him. Evelyn Sharp begins masquerading as Black Canary; her actions brand Black Canary as a criminal. Oliver saves Laurel's image by revealing her secret to the public. Laurel is later avenged when Oliver kills Darhk.

In season five, when Oliver, John, Thea, Sara, and Ray are abducted by the Dominators, they are placed in a shared hallucination where Laurel is alive; seeing Laurel allows Oliver and Sara to move on from her death. In the mid-season finale, Oliver discovers Laurel seemingly alive and well, but Felicity discovers she is actually Laurel's Earth-2 counterpart "Black Siren" — previously introduced in The Flash as a minion of Zoom—and is working with Prometheus. Oliver hopes to help Earth-2 Laurel find redemption, believing it to be the only way to forgive himself for Earth-1 Laurel's death. Earth-2's Laurel was in love with Oliver's Earth-2 counterpart, until the latter's death 10 years ago; she moved to Central City to start a new life, only to become Black Siren when affected by Harrison Wells's particle accelerator, and then fell under Zoom's influence. Encountering Black Siren also motivates Oliver to keep the promise to Earth-1 Laurel. Black Siren works with Evelyn to kidnap the members of Team Arrow including Quentin. Black Siren reveals to Quentin that, while she helps Adrian out of gratitude for freeing her from A.R.G.U.S., she is sentimental towards her father's Earth-1 counterpart. After the destruction of Lian Yu at the end of the season, Black Siren's fate is unknown.

In season six, while Black Siren is revealed to have survived the destruction of Lian Yu, she has been injured by Quentin and left for dead. A mysterious figure, later revealed to be Cayden James, finds and rescues her. Having lost her father when she was 13 and envious of her doppelgänger's life, she grew to love Quentin as her father in time. Quentin's attempts at contact leave her conflicted, but she still murders Vigilante at James' orders. After Dinah Drake learns that Black Siren murdered her boyfriend (albeit under James' orders), she shoots Black Siren in cold blood and leaves the latter for dead. Quentin patches Black Siren up and takes her to parts unknown to attempt to restore the part of her goodness that she has lost. Black Siren also prepares to take over her late doppelgänger's life, claiming that the original Black Canary never died in action. Later on, Black Siren turns against Ricardo Diaz and helps to fight his forces. When Ricardo wounds Quentin, Black Siren knocks Diaz off a building; he survives and escapes. She later acquaints with her doppelgänger's sister Sara Lance. After Quentin dies during surgery, Laurel is left devastated.

In season seven, Laurel follows her doppelgänger's footsteps as a lawyer despite had not been one on her Earth, becomes the city's district attorney. She is seeking revenge against Ricardo Diaz for Quentin's death.

In an episode of The Flash, titled "Fury Rogue", which serves as an epilogue to the "Crisis on Earth-X" crossover, Cassidy portrays Dinah Laurel Lance's Earth-X doppelgänger, known in production as "Siren-X". She survives the disestablishment of Earth-X's Nazi regime at the end of "Crisis on Earth-X" and travels to Earth-1 to avenge the death of Dark Arrow and her regime's collapse. With help from Leo Snart, Team Flash are able to defeat and imprison her.

Katie Cassidy received star billing for her portrayal of Dinah Laurel Lance during the first four seasons of Arrow. Cassidy was demoted to guest during the fifth season of Arrow, but she regained her star billing in season six for her portrayal of Black Siren.

Tommy Merlyn

Further information: Tommy Merlyn and Prometheus (DC Comics)

Colin Donnell

Thomas "Tommy" Merlyn (portrayed by Colin Donnell; main season 1; guest seasons 2–3, 6) is Oliver Queen's best friend and Malcolm Merlyn's son. He shares his surname with the DC Comics character Merlyn, and a version was introduced as a former friend-turned-enemy of the titular character in the Green Arrow comics in The New 52.

In season one, Tommy is a spoiled playboy who lives off Malcolm's financial support. After Malcolm cuts him off, Tommy manages Oliver's nightclub Verdant, and dates Laurel. He learns Oliver's secret when Oliver, as the vigilante, saves Malcolm from assassins. Oliver and Tommy's friendship is strained with Tommy seeing Oliver as a killer. Tommy later breaks up with Laurel, thinking Laurel belongs with Oliver. Tommy is killed rescuing Laurel from a collapsing building damaged by his father's earthquake machine during the Undertaking.

In season two, Oliver vows never to kill again in Tommy's memory. An image of Tommy is seen, calling Oliver a hero. It is also revealed that he is Thea Queen's paternal half-brother. In season three, Tommy appears twice in flashbacks. He travels to Hong Kong looking for Oliver but fails, and throws himself a birthday party while trying to stop Thea from using drugs and grows closer to Laurel. In season five, the Dominators' dream world has him mentioned as a cardiothoracic surgeon after completing his residency in Chicago (a nod to Colin Donnell's role as Dr. Connor Rhodes in Chicago Med after leaving Arrow) and he appears as a ghost when Oliver leaves the dream world.

In season six, Christopher Chance posthumously impersonates Tommy dressed as the Green Arrow during Oliver's trial, redeeming Tommy's image in Star City (tarnished because of both his father's and his Earth-X doppelgänger's actions) and clearing Roy Harper of all charges.

Tommy Merlyn's Earth-X doppelgänger is revealed to be an equivalent of Prometheus in said parallel world seen in the "Crisis on Earth-X" crossover special. Like his doppelgänger, he is friends with the Dark Arrow. Unlike his Earth-1 self, Tommy has skills (and even an amalgam costume style) consistent to Malcolm Merlyn and Adrian Chase, and is a member of the New Reichsmen with Dark Arrow, Overgirl, and the Reverse-Flash. After Sara Lance and Alex Danvers subdue and capture him, Tommy cruelly taunts Oliver over the attachment to his deceased doppelgänger and kills himself via cyanide capsule, leading Oliver to see Tommy's doppelgänger as a perversion.

John Diggle / Spartan

Further information: John Diggle (Arrowverse)

David Ramsey

John Thomas Diggle (portrayed by David Ramsey; season 1–present) is a decorated former United States Army Special Forces soldier, honorably discharged with the rank of master sergeant, ordained minister, and Oliver's best friend and partner. While John Diggle was originally a character created for the show, his popularity led to a character of the same name modeled after Ramsey's appearance to be created for the Green Arrow comics in The New 52. While elements from the Arrow TV series were removed after issue 40, John appeared again following the relaunching of the series as part of DC Rebirth.

During season one, John is hired as Oliver's bodyguard and becomes his confidant in his mission to save Starling City. John tries to help Oliver balance his normal life and vigilante life, and occasionally helps him in the field. John provides Oliver with medical assistance, limiting his need for hospital treatment. Already a skilled fighter, John receives additional training from Oliver. John has a grudge against Floyd Lawton / Deadshot who killed his brother, Andy. John dates his brother's widow, Carly, and is a father figure to her son, A.J., during this season.

In season two, John and Felicity continue to help Oliver with his crusade and John continues to be Oliver's adviser and field partner, along with Sara and Roy. John has a relationship with his ex-wife Lyla Michaels, is an unofficial member of A.R.G.U.S., and is a member of the Suicide Squad under the codename "Freelancer". He also develops an uneasy alliance with Amanda Waller who occasionally asks him for field assistance with A.R.G.U.S. missions. It is revealed that Lyla is pregnant with John's child.

In season three, John continues to help Oliver and his team, but has to devote more of his time to his new baby with Lyla, whom he names Sara after Sara Lance is killed. After Lyla is seriously injured in an attack, they decide to remarry. When Oliver is presumed dead at Raʾs al Ghul's hands, John leads Felicity, Roy, and Laurel until his friend's return. After Oliver's return, John accompanies him to Nanda Parbat to help him free Malcolm, but the two are captured. John and Lyla marry after a near-death experience with the Suicide Squad, when Deadshot sacrifices himself for them. John and Lyla decide to quit Team Arrow and A.R.G.U.S. for their daughter's sake. After Oliver leaves the team to join the League of Assassins as part of a deal to revive a deceased Thea, John becomes the team leader, though he is not yet ready to forgive Oliver for kidnapping Lyla as part of a deception to gain acceptance by the League.

In season four, John, going by the codename "Spartan", discovers that the organization that targets Star City is H.I.V.E., who have hired Lawton to murder John's brother, Andy. John eventually forgives Oliver after their fight with a H.I.V.E. metahuman operative named Jeremy Tell. With Quentin Lance's help, John learns that Damien Darhk had Andy murdered, and that he was a drug cartel leader and Darhk's territorial rival prior to his death. However, John discovers that Darhk actually faked Andy's death and recruited him as a H.I.V.E. soldier, leading John and his brother to become enemies. Guilt-ridden over his brother's role in causing Laurel's death, John seeks revenge against Andy and Darhk. John kills his brother after Andy nearly causes Lyla and Sara to be killed. He initially lies to Lyla, saying that he killed Andy in self-defense, but Oliver encourages John to admit the truth to his wife. John rejoins the US Army after confiding to his wife and Darhk's defeat.

In season five, John is betrayed by his commanding officer, J.G. Walker, following a failed attempt to sell nuclear weapons. John is framed for Walker's crimes; Oliver and Lyla break him out of state prison, and John stays at H.I.V.E.'s former base until his innocence can be proven. John remains guilty about killing Andy and continues to serve as Spartan to redeem himself. Due to the events of The Flash episode "Flashpoint", John's family history is altered: his daughter Sara has been erased from existence and replaced by John "J.J." Diggle, Jr., as a result of a timeline change caused by Eobard Thawne, correcting the Flashpoint reality created by Barry. John eventually learns of the alteration of his life, his daughter's erasure and his son's status as a time aberration, and despite the hurt caused by these circumstances, he chooses to forgive Barry. However, Lyla distrusts Barry for this. Felicity is able to prove John's innocence by restoring the digital files that Walker had destroyed. However, Andy's betrayal and death at John's hands has taken a toll on him; he struggles to control his rage and occasionally pulverizes criminals to vent it, fueling Oliver's concern over his erratic behavior. John later befriends Oliver's chosen successor to Laurel's mantle, Dinah Drake, a Central City detective, and encourages her to set down roots in Star City. By the end of season five, John's fate is unknown due to the destruction of Lian Yu caused by Adrian Chase.

In season six, John is revealed to have survived the explosion by taking shelter in the plane like the others. However, he was wounded by bomb shrapnel and suffers a degenerative nerve injury that affects his motor control that requires taking daily medications, resulting him to develop a drug dependency. When Oliver decides to retire from being the Green Arrow, he appoints John as his successor, not knowing that John is not in condition to remain in action until later. Oliver returns to vigilantism until John is fully recovered from his injury. Curtis Holt develops an implant for John to help him control his tremors as he progressively recovers. After Oliver decides to remain being the Green Arrow, John accepts the job offer from Lyla as one of the commanding officers in A.R.G.U.S., using his new position to lead his subordinates to maintain order in the city's police's place due to they have been compromised by crime lord Ricardo Diaz. Nearing the end of the season, John is fully healed and no longer needing Holt's implant. His A.R.G.U.S. team later joins forces with the Samantha Watson's subordinates from the F.B.I., and working with Team Arrow, they ultimately take back the city from Diaz.

In season seven, John remains working at A.R.G.U.S., and continues leading his manhunt against Diaz.

Thea Queen / Speedy

Main article: Thea Queen

Willa Holland

Thea Dearden Queen (portrayed by Willa Holland; seasons 1–6) is the daughter of Moira Queen and Malcolm Merlyn, though both Malcolm and Thea were unaware of their relation to each other until season two, and the younger half-sister to Oliver Queen and Tommy Merlyn. Her brother's nickname for her and later hero persona ("Speedy"), her middle name of Dearden and the alias "Mia" she used during her time at Corto Maltese, are Easter egg connections to one of Green Arrow's sidekicks in the comics.

In season one, Thea is battling a drug and alcohol problem which she used to fill the pain of losing her brother. After court-ordered community service from taking "Vertigo", she grows to be more responsible. Thea's addiction with Vertigo causes a bitter animosity between Oliver's vigilante alter-ego and the drug's creator, The Count. She also falls in love with Roy Harper, a lifelong street criminal who she meets when he steals her purse. Though he initially has no romantic interest in Thea despite an obvious physical attraction to her, mainly out of resentment of her wealth, Roy later begins to genuinely fall in love with her.

In season two, Thea runs the Verdant nightclub in Oliver and Tommy's absences and continues seeing Roy, but is frustrated by Roy's need to save people, though she gradually comes to accept it. She is the subject of exclusion as most characters keep secrets from her including her true paternity which she eventually discovers when Slade Wilson abducts her. She breaks up with Roy when he cheats on her, though he only does this to keep her away from him during his Mirakuru problem. Despite reconciling with Roy after having learned of his illness, she breaks up with him again after discovering his allegiance to the Arrow. After her mother's death, she decides to leave Starling City. Malcolm comes to save her and convinces her to leave with him.

In season three, Thea is in Corto Maltese receiving combat training from Malcolm, though she soon decides to return to Starling with Oliver. She reopens her nightclub after Malcolm secretly buys the foundry from Queen Consolidated for her. She learns Oliver's secret identity as the Arrow when he shows her his hideout under the nightclub and begins to distrust Malcolm after learning that he already knew Oliver's secret. After Thea is told that her father used her as a pawn against both Oliver and Raʾs al Ghul by drugging and manipulating her into killing Sara Lance, she arranges for him to be captured by the League in retaliation. She reconciles with Roy but is nearly killed by Raʾs and brought back to life in the Lazarus Pit in exchange for Oliver joining the League of Assassins. Thea blames herself for letting her brother join the League. Roy breaks up with her when he leaves Starling City after faking his death, hoping that Thea can make a life of her own without him. He also leaves her his red costume which she wears to become a vigilante herself as his successor.

In season four, Thea works with Oliver and his friends in the fight against the terrorist organization H.I.V.E. as "Speedy". Despite the enjoyment of being a vigilante, Thea's behavior becomes increasingly volatile and reckless when in the field, which Oliver realizes is a side effect of being in the Lazarus Pit. Thea helps Laurel to bring Sara back from death in hopes of making amends towards the Lance family. Because of this, Thea becomes telepathically linked with Sara for a period after her resurrection in the Lazarus Pit. It is also revealed that Thea's Lazarus Pit side effect is able to counteract Damien Darhk's life force drain, temporarily relieving her bloodlust. Thea begins to die as the Pit's restorative effect wanes. With Tatsu Yamashiro's help, Nyssa al Ghul gives Oliver the "Lotus", an elixir used by the Crescent Order that permanently reverses the effects of the Lazarus Pit, saving her life. Thea learns that Oliver is William's father, and that her mother had known and kept it a secret from them all. Thea meets William after Darhk kidnaps him, but she and Oliver are unable to acknowledge their relation to William due to their mother's actions and for the boy's safety. Darhk's wife, Ruvé Adams, eventually brainwashes Thea's new boyfriend, Alex Davis, into kidnapping her to a miniaturized H.I.V.E. facility built from stolen technology belonging to Ray Palmer.

In season five, Thea now works as Oliver's mayoral chief-of-staff and is adamant about retiring from being a vigilante after Oliver kills a number of Tobias Church's thugs. She hires Quentin as deputy mayor and helps him beat his alcoholism. However, while working to help her brother politically she makes some ruthless decisions, including ruining the career of Oliver's new love interest, reporter Susan Williams. Felicity is able to restore Susan's credibility, and Thea, realizing she has gone too far, resigns from her position soon afterward, despite Oliver asking her to stay. She occasionally resumes her vigilante role when needed. She is abducted by Adrian Chase and brought to Lian Yu with the others on the team, and was on the island when Chase sets off the massive explosions at the end of the final episode.

In season six, Thea is in the hospital, still in a coma five months after being critically injured in the destruction of Lian Yu. She later recovered during Thanksgiving Day and is greeted by her family and friends, including William, whom she happily acknowledged and help raising her nephew with Oliver and Felicity. She is also again working as Oliver's chief-of-staff following her recovery. After reuniting with Roy, Thea learns that Malcolm named her as his successor as leader of the League of Assassins' splinter faction Thanatos Guild. She then went into hiding with Roy and Nyssa al Ghul, along with searching for the locations of three remaining Lazarus Pits.

Moira Queen

Susanna Thompson

Moira Queen (portrayed by Susanna Thompson; seasons 1–2; guest seasons 3, 5) is the mother of Oliver and Thea, the former acting CEO of Queen Consolidated, mayoral candidate and wife of Robert Queen and later Walter Steele. She also had a brief affair with Malcolm Merlyn after his wife's death, which resulted in Thea's birth. She is based on the minor DC Comics character of the same name.

In season one, Moira is involved in "The Undertaking", a criminal conspiracy orchestrated by Malcolm to destroy the Glades, with him forcing Moira to handle all interference and supply him with the resources needed. Her involvement causes her to keep many secrets from her family which, when revealed, causes Walter to divorce her and her kids to become distant. Moira eventually confesses her involvement and Malcolm's, which results in her arrest.

In season two, Moira is put on trial but she is acquitted as Malcolm returns, alive. She makes Malcolm go on the run by informing Raʾs al Ghul of his survival. Moira eventually becomes a mayoral candidate against Sebastian Blood on Walter's advice, but the secret of Thea's parentage is revealed, causing a rift between Moira and her children. It is revealed that she had been aware of Oliver's secret identity as the Arrow since the night of her arrest. She is murdered by Slade Wilson as part of his revenge plot against Oliver. In a flashback, Moira paid Samantha Clayton to tell Oliver she lost their baby and to move away to Central City.

In season three, Moira's voice is briefly heard when Oliver calls home from Hong Kong. In season four, Samantha reveals she never cashed Moira's check, and the attempted bribe resulted in Samantha hating Moira; as a result, Samantha denied Moira access to her grandson, William. Oliver is hurt when he finds out, and angry with Moira for the deception.

In season five, Moira is seen as a figment of Oliver's Dominators-induced hallucination.

Quentin Lance

Paul Blackthorne

Quentin Larry Lance (portrayed by Paul Blackthorne; seasons 1–6) is a deputy mayor, mayor, former police detective and captain, the father of Laurel and Sara, and former husband of Dinah Lance. He is based on the DC Comics character Larry Lance, husband to Dinah Drake Lance and father to Dinah Laurel Lance.

In season one, Quentin resents Oliver for causing Sara's death, becoming an alcoholic who throws himself into his work to avoid the pain. After Oliver returns, he openly shows his hatred of him and also hates the Arrow for being against everything Quentin believes in. Quentin attempts numerous times to arrest him, one time using Laurel, which causes her to be distant for a time. He works with the Arrow from time to time and eventually comes to accept him.

In season two, Quentin is demoted to officer; an ally to the Arrow, Quentin becomes his informant and occasional field partner on cases. He struggles to recover from his alcoholism and repair the relationships with his family. After Quentin discovers Sara is alive and the vigilante "Canary", he helps her adjust to life in Starling City. He helps Laurel cope with her pain over losing Tommy, and seeks to rekindle his relationship with Dinah, but she has moved on after their divorce. Quentin later regains his detective title. Following a battle with Slade's forces, Quentin passes out from internal bleeding and falls into a coma.

In season three, Quentin is in recovery, with frequent chest pains, and has been promoted to captain; he uses this authority to disband the anti-vigilante task force. His condition is strained due to assisting the Arrow in the field, and he relies on his new political connections and his subordinates to continue serving the city. Although Laurel kept the information from him, he ultimately learns the truth about Sara's death and Laurel becoming her vigilante successor. Quentin becomes estranged from Laurel and relapses in his alcoholism. He blames the Arrow for Sara's death and is determined to bring him to justice; he learns of Oliver's secret identity from Raʾs al Ghul. Quentin supports Team Arrow when Raʾs plans to unleash the bio-weapon on Starling.

In season four, Quentin is forced to work with H.I.V.E. after Darhk threatens the lives of his family. Oliver discovers this and persuades Lance to become a double agent and report information on Darhk. Darhk gradually becomes suspicious of Quentin, who discovers the source of Darhk's supernatural powers: an ancient artifact. With this information, Mari McCabe destroys Darhk's idol, leaving him powerless. Quentin publicly admits in court his association with H.I.V.E. under Darhk's duress, determined to see justice served, despite endangering his career. He reconciles with Laurel and reunites with Sara after she is brought back from the dead. Quentin begins seeing Donna Smoak, Felicity's mother. After Darhk murders Laurel, Quentin seeks to bring her back the same way Sara returned, only to learn from Nyssa that the Lazarus Pit was destroyed shortly after Sara's return. With Donna's support, Quentin copes with his loss without succumbing to alcoholism. After saving the city with Oliver, Quentin is fired and decides to leave Star City with Donna.

By season five, Quentin has broken up with Donna and, now having no one left, returns to Star City and falls back into alcoholism. With encouragement from Oliver, Quentin begins reforming Star City's police force as deputy mayor, working with the Green Arrow to reduce the city's rising crime rate. Quentin also formed the Anti-Crime Unit to combat serious crimes prior to his dismissal from the police, and leads them under his new position when needed, though this puts him at odds with his former colleagues. However, after Evelyn Sharp's fight with Prometheus, Felicity discovers that the shurikens Prometheus used were made from Oliver's old arrow heads stolen from the police evidence lockup, and Quentin finds cuts on him that implicate him and raise doubts of his sanity. Quentin eventually learns that Adrian Chase is Prometheus and responsible for attempting to frame him. Thea convinces Quentin to seek help at rehab after realizing how much Laurel's death is affecting him, and holds the position of deputy mayor for when he recovers. After resuming his position, Quentin befriends one of Oliver's protégés, Rene Ramirez, after Quentin learns of his past encounter with a young Rene when Quentin was a beat officer, and offers Rene a job as his assistant. He also befriends Oliver's chosen successor for the Black Canary mantle, Dinah Drake. When Dinah expresses her hesitance at accepting Laurel's mantle, Quentin gives Dinah his blessing, saying it is what Laurel would want. Quentin later encounters the Earth-2 Laurel and is disturbed to see what his own daughter could have potentially become. By the end of season five, Quentin's fate is unknown due to the destruction of Lian Yu caused by Adrian Chase.

At the beginning of season six, it is revealed that Quentin survived the explosion by taking shelter in the plane like the others, but was left emotionally scarred following his encounter with Laurel's doppelgänger. However, he later shares Oliver's hope for Black Siren of redemption. He later serves as the city's acting mayor following Oliver's impeachment, resulting him at odds with his corrupt subordinates led by crime lord Ricardo Diaz. During Team Arrow's showdown with Ricardo Diaz, Quentin is wounded by him causing Black Siren to push Diaz off the building where he survives. This wound got Quentin hospitalized. Despite the surgeons' attempts to save his life, Dr. Elisa Schwartz told Team Arrow that Quentin passed away when his brain was not getting any oxygen. This left Sara and Black Siren devastated.

During the "Crisis on Earth-X" crossover, Quentin's Earth-X doppelgänger is a Sturmbannführer of the Nazi's paramilitary rank. This Quentin also killed his version of Sara after discovering that she was bisexual. In an episode the season four of The Flash, reveals that, like his Earth-1 and Earth-2 doppelgängers, he is the father of Earth-X's version of Laurel, who is Siren-X.

Felicity Smoak / Overwatch

Further information: Felicity Smoak

Emily Bett Rickards

Felicity Megan Smoak (portrayed by Emily Bett Rickards; main season 2–present; recurring season 1) is an I.T. expert, a partner (and eventual love interest and later wife) of Oliver Queen. Felicity is a MIT graduate with a master's degree in cyber security and computer sciences, and ranked second in the National Information Technology Competition at age 19. Felicity was raised by her mother, Donna Smoak, who left her father Noah Kuttler when Felicity was seven years old due to his life as a criminal. During season one, she is initially an employee of Queen Consolidated, asked by Walter to investigate the list and by Oliver for occasional favors. She learns Oliver's secret when he is shot and has her take him to his lair where she and John patch him up. She stays on as Oliver's computer expert in hopes of finding Walter Steele by helping Oliver, and becomes one of Oliver's confidants. Felicity chooses to remain at Oliver's side after Walter is rescued.

In season two, she continues to serve as Oliver's partner, upgrades his safehouse, and has a custom bow made for him. Felicity also helps in the field as a decoy or to field-hack a computer, but sometimes gets herself in deeper trouble. Felicity and Oliver also start to develop romantic feelings towards each other despite the fact that he is in a relationship with Sara Lance at the time.

In season three, Felicity continues to be Oliver's tech support but has been forced to work for another company after losing her Queen Consolidated job. She eventually returns to work at Queen Consolidated (renamed Palmer Technologies) under new CEO Ray Palmer as his vice president. Felicity becomes conflicted by her feelings towards both Oliver and Ray. While Ray and Felicity become a couple, many people, including her mother, see that Felicity is in love with Oliver. Felicity finally admits her love to Oliver and the two consummate their relationship. However, Oliver's decision to join the League of Assassins causes a rift between them. At the end of the season, Oliver retires from being the Arrow and he and Felicity leave Starling City to start a new life. In flashbacks, it is revealed that she was a part of the cybergoth subculture and a member of a hacktivist group on her college campus.

In season four, Felicity becomes Palmer Technologies' acting CEO after Ray's presumed death; she becomes friends with one of its scientists, Curtis Holt. After living in Ivy Town for several months, she and Oliver return to Star City to help with the 'Ghost' problem. Felicity is the first person—before Laurel and Sara—to find out that her mother is dating their father. She and Oliver become engaged, but are attacked by H.I.V.E, resulting in Felicity being shot and left permanently paralyzed from the waist down. After coming to terms with her paralysis and her rebellious past, Felicity is given the codename "Overwatch" by Oliver. Felicity is reunited with her father after eighteen years, but learning that he is cyber-criminal mastermind the Calculator, Felicity has Quentin arrest him. With Curtis's help, Felicity's mobility is restored after a chip is surgically implanted in her spine. She learns of that Oliver has been lying to her about his secret child with Samantha Clayton, leading to her breaking off their romantic relationship. Later, after an encounter with the villain "Cupid", Felicity leaves the team until Laurel's death motivates her to return. Felicity decides to dedicate Palmer Technologies' innovations to help people, which causes her to lose her position as CEO. The season ends with Felicity and Oliver the only ones remaining in the destroyed lair.

In season five, Felicity continues to assist Oliver, and convinces him to build a new team, recruiting Curtis Holt, Rene Ramirez, Evelyn Sharp, Rory Regan, and Dinah Drake. She also dates police detective Billy Malone. When Billy is killed by Oliver in an accident planned by Prometheus, she seeks revenge and joins a hacker group called Helix. When Prometheus traps both Felicity and Oliver under their lair, the pair begin to reconcile after Oliver admits he trusts her but not himself. Felicity comes to understand the complexity of the decisions Oliver has made, and apologizes to him for her own hypocrisy. By the end of season five, Felicity's fate is unknown due to the destruction of Lian Yu caused by Adrian Chase.

In season six, Felicity, having survived the explosion by taking shelter in the plane like the others, remains on the team. She and Oliver rekindle their relationship and forms a bond with Oliver's son William. She and Curtis also begin a partnership in starting their own company. After the events of "Crisis on Earth-X", Felicity and Oliver marry each other. However, by the end of the season, Oliver turns himself in to the F.B.I. in exchange for the aids in defeating Ricardo Diaz, leaving Felicity and William devastated. As William's stepmother, Felicity is now a full legal guardian of her stepson following Oliver's arrest.

In season seven, Felicity is attacked in her home by Ricardo Diaz as William runs for it. Felicity is overpowered by Diaz who prepares to kill her, he gets away when A.R.G.U.S. shows up. Felicity sends William to Cambridge for his safety, and seeking retaliation against Diaz. In flash-forwards, it is referred that Felicity is still with Oliver after over twenty years of their marriage. However, an unknown circumstance forced her and Oliver sending William to Roy Harper, preparing William for a plan that Roy works to enact. It is also revealed that Felicity took over Palmer Technologies and renamed it Smoak Technologies, therefore running the Queens' former company under her name, and it is implied that after having learned from Black Siren a brief details about her Earth-2 doppelgänger motivated Felicity to establish her own corporate empire. Despite that it is referred that Felicity is dead, someone is sending GPS coordinates to the hōzen she gave to William years ago, therefore leaving her actual fate in questions.

A parallel universe doppelgänger of Felicity from Earth-X is also introduced, a concentration camp prisoner, during the "Crisis on Earth-X" crossover; Oliver saves this Felicity when he was stranded in Earth-X with other heroes. Felicity learns that she has a lookalike (but not knowing is a parallel universe version of her) and that her facsimile is romantically involved with the Führer's before escaping from a Nazi facility. In an episode of season seven, it is referred by Black Siren that Felicity's Earth-2 doppelgänger is a powerful but immoral businesswoman.

A character by the same name appeared in the comics as Ronnie Raymond's step-mother who runs a software company. A version based on Rickards' portrayal was introduced in the DC Comics universe in Green Arrow (vol. 5) #35.

Roy Harper / Arsenal

Further information: Roy Harper (comics)

Colton Haynes

Roy William Harper Jr. (portrayed by Colton Haynes; main seasons 2–3, 7; recurring season 1; guest seasons 4, 6) is a former street criminal, Thea's boyfriend and a supporter of the Arrow. He is based on the DC Comics character of the same name.

In season one, Roy is a small-time criminal who falls in love with Thea after robbing her, and is arrested multiple times by Quentin Lance. He does not see any other way to live until the Arrow saves him from a kidnapping, after which Roy attempts to find the Arrow to help him. Roy later works as a waiter at Verdant.

In season two, Roy often goes out to clean up the streets, until the Arrow convinces him to gather intelligence instead. After being injected with Mirakuru, Roy gains super strength but slowly loses his sanity. The Arrow reveals his identity when Oliver convinces Roy to stop Bronze Tiger. Roy trains with Oliver in order to control his strength, but is forced to break up with Thea. Slade kidnaps Roy to use his blood to create his army, leaving Roy completely insane and causing him to go on a rampage, killing a cop. Roy takes part in the season finale's battle, with his own mask, but he is slightly amnesiac, not remembering anything after breaking up with Thea.

In season three, Roy is Oliver's partner and participates with him in the field. He takes on the alter-ego "Arsenal", though the media also refers to him as "Red Arrow". Thea makes Roy her assistant manager at Verdant, and they eventually get back together. Sara's murder brings the repressed memories of his ramage to the surface and Roy supports the family of the police officer he killed. When Oliver is presumed dead, Roy takes his place as the team's head archer, often teaming with Laurel on missions. After Quentin Lance resumes his manhunt against Arrow, Roy subsequently impersonates Oliver's alter-ego and fakes his own death, leaving Starling City to assume that Arrow is dead so that Oliver can be free. Roy passes on his Arsenal suit to Thea after leaving town.

In season four, after building a new life in Hub City, Roy returns to his vigilante role after the Calculator extorts him to steal technological components and Thea is out of commission. In season five, Roy appears as a hologram when Oliver is about to leave the Dominators' simulated dream world.

In season six, Roy is brought back to Star City by Ricardo Diaz, in an attempt to make him testify that Oliver is Green Arrow in court. As he refuses to betray his friend and former mentor, he is tortured by dirty cops and by Diaz himself. He is then rescued by Oliver and Thea, who put back their shared red hood suit for this. He helps Thea and Team Arrow to fight against Thanatos Guild and leaves the city with Thea and Nyssa al Ghul to find and destroy the Lazarus Pits around world. Later, after Christopher Chance disguised himself as Tommy Merlyn and tells Star City that he was Arrow and is Green Arrow, Roy is now cleared of all charges of being the vigilante. When Oliver revealed to Star City that he was both the Arrow and the Green Arrow, Roy's name was permanently cleared.

Haynes returns as a regular for season seven. A flashforward has him in Lian Yu where he, who is twenty years older and an accomplished archer, encounters William who shows the hōzen once belonged to Oliver, proving that he is Roy's friend's son. After he and William are acquainted, they are returning to Star City after finding instructions made by Oliver and Felicity.

Slade Wilson / Deathstroke

Further information: Deathstroke

Manu Bennett

Slade Wilson (portrayed by Manu Bennett; main season 2, recurring season 1; guest seasons 3, 5–6) is one of the world's deadliest assassins and mercenaries, a former Australian Secret Intelligence Service (ASIS) operative, and the mentor-turned-archenemy of Oliver Queen. He is based on the DC Comics character of the same name and is the main antagonist of season two.

In season one flashbacks, Slade is a combat mentor to Oliver on Lian Yu and teaches him to fight Edward Fyers and his mercenaries in their attempts to escape the island and stop Fyers' plans. Though Slade openly doubts Oliver's abilities to survive or fight, often giving him demeaning nicknames, the two become close friends and fight together well. He also becomes romantically drawn to Shado.

In season two flashbacks, he is severely wounded by Dr. Ivo's mortar attacks and Oliver injects him with Mirakuru, a strength-enhancing serum left on the island in WWII by Japan, in order to save his life. When Shado is killed, Slade blames Oliver for her death and turns on him. In the present, Slade is alive, now operating as the mercenary "Deathstroke", and plots to destroy Starling City with an army of Mirakuru soldiers working with Sebastian Blood and Isabel Rochev. He undermines Oliver's life by causing him to lose his money and his business, revealing some of Oliver's secrets to Laurel and Thea and killing Moira before unleashing his army on the city. Oliver defeats him when Felicity injects him with the Mirakuru cure and he is imprisoned in an A.R.G.U.S. supermax prison on Lian Yu.

In season three, having been temporarily released by Malcolm Merlyn, Slade attempts to imprison Oliver and Thea in the supermax and return to Starling but the two are able to beat him.

In season five, Deathstroke appears in a hallucination created by the Dominators, where he serves as a countermeasure to prevent Oliver and his friends from escaping. Bennett did not portray the character in the episode. Bennett would later reprise the role for the final two episodes of the season, appearing in a cameo in "Missing" and appearing as a major character in the finale. By the time of the season five finale, Slade is revealed to have completely recovered from the effects of the Mirakuru and willingly helps Oliver in his quest to rescue his team and son from Adrian Chase. Slade's fate is unknown due to Lian Yu's destruction.

In season six, Slade, having survived the explosion, returns to Star City to see Oliver and thank him for giving him information about where to find his son.

Malcolm Merlyn / Dark Archer

Further information: Merlyn (DC Comics)

John Barrowman

Malcolm Merlyn (portrayed by John Barrowman; main seasons 3–4; recurring seasons 1–2, 5), born Arthur King, is a wealthy businessman, member of the League of Assassins, father of Tommy and Thea and one of the main antagonists of the series. During season one, Malcolm plots the Undertaking, the destruction of the Glades using an earthquake device, after his wife Rebecca was murdered there. When Robert Queen earlier threatened the Undertaking, Malcolm arranged to destroy Robert's ship, Queen's Gambit, resulting in Robert's death and indirectly leading to Oliver and Sara becoming the Arrow and the Canary. In the main story of season one, he uses Moira to gain access to the resources needed for the Undertaking. He tries to reshape Tommy into a better person by cutting him off which works but causes tensions between them. When the Arrow interferes with his plan, Malcolm becomes a vigilante called "Dark Archer" to oppose him and proves to be far more skilled. He suspects Oliver to be the Arrow and is proven right after defeating him a second time. In the season finale, Malcolm is seemingly killed by Oliver though he manages to destroy much of the Glades, inadvertently kills Tommy, and is publicly exposed for his crime by Moira.

In season two, Malcolm returns to suborn the jury in Moira's trial to find her innocent of the Undertaking. He discovers that he is Thea's biological father, following Adam Donner's discovery of Malcolm's affair with Moira. In an attempt to keep Malcolm from Thea, Moira informs Raʾs al Ghul of his survival, forcing Malcolm to flee Starling City. During Slade's attack on the city, Malcolm returns to save Thea from the Mirakuru soldiers and convinces her to leave Starling with him.

In season three, Malcolm is revealed to have trained Thea to be a warrior in Corto Maltese. Despite being both the League's target and a fugitive of the law, Malcolm secretly returns to Starling City, using personal wealth and resources following the loss of his company. Under an alias, Malcolm purchases the foundry from Queen Consolidated, the site of Thea's nightclub, Verdant. It is revealed that his name in the League of Assassins is "Al Sa-Her" (Arabic: الساحر), which translates to "The Magician". He continues to train Thea until she can defeat him in combat. Malcolm plots the death of Raʾs to eliminate his blood debt, and manipulates Thea into killing Sara so that Oliver will take the fall for her murder and challenge Raʾs to a duel; this plan fails and almost gets Oliver killed. Malcolm learns that crime lord Danny Brickwell was responsible for the murder of his wife, but Oliver persuades him to choose justice over vengeance for Thea's sake, allowing Brickwell to be tried for his crimes. Malcolm trains Oliver in swordplay in preparation of battling Raʾs together. When Oliver tells Thea that Malcolm brainwashed her into killing Sara, she betrays Malcolm to the League; he is captured and tortured but freed from Nanda Parbat when Oliver takes the place of Raʾs. After Thea is killed by Raʾs, Malcolm accompanies Oliver to Nanda Parbat to revive her but Oliver is forced to join the League. Malcolm secretly works with Oliver to cripple the League from within and stop the plan of Raʾs to unleash the Alpha/Omega bio-weapon on Starling City. Malcolm leads Team Arrow to save the city until Oliver's return. After Raʾs is killed by Oliver in a final sword fight, he passes leadership of the League to Malcolm, which Nyssa suspects had been Malcolm's scheme all along. Despite their renewed animosity, both Malcolm and Oliver harbor deep respect for each other: Malcolm regards Oliver as a surrogate son and Oliver himself remembers the man Malcolm was before the death of his wife.

In season four, Malcolm helps Laurel resurrect Sara in order to settle his family's blood debt with Laurel, and helps Thea control her bloodlust. He provides information to Oliver and Barry Allen about Vandal Savage. To keep Darhk from learning Oliver's secret, Malcolm masquerades as Green Arrow. However, despite occasionally helping Oliver, Malcolm remains an amoral man and is despised by Oliver's team and their allies. Malcolm's aid to Oliver is either for protecting Thea or for his own agendas. Malcolm ultimately loses both his left hand and his power after Nyssa wins the League's leadership with Oliver's help, leading Malcolm to align himself with Darhk for revenge against Oliver. In the process, Malcolm reveals Oliver's secrets to Darhk. As a result, Darhk makes Malcolm a H.I.V.E. member and provides a cybernetic prosthesis. In order to protect himself and Thea from Damien's plans, Malcolm steals Damien's idol, working with Andy Diggle, which results in Laurel's death. Malcolm remains a leader to disbanded remnants of the League, and with them he forms its splinter faction the Thanatos Guild. Malcolm allies with Team Arrow again when Darhk tries to destroy the world without the means to survive it.

In season five, an illusion of Malcolm appears in the Dominators' dream world and opposes Oliver, Thea, John, Ray and Sara when they try to leave, but is swiftly killed by Thea. Malcolm appears in flashbacks working with Konstantin Kovar, giving him sarin gas in exchange for the means to acquire information on Unidac Industries to build the earthquake device. Malcolm returns in the penultimate episode of season five, offering Oliver his assistance in saving his friends, most importantly Thea. After Malcolm frees Thea, Felicity, Curtis and Samantha, Thea accidentally steps on a landmine. As Captain Boomerang approaches them, Malcolm takes Thea's place, telling the others to run. As they run, the landmine is seen exploding in the distance, killing Malcolm and presumably Captain Boomerang.

Before his death on Lian Yu, Malcolm assembled the Thanatos Guild.

Malcolm Merlyn is based on the DC Comics character of the same birth name and is the main antagonist of season one.

Curtis Holt / Mister Terrific

Further information: Mister Terrific (Michael Holt)

Echo Kellum

Curtis Holt (portrayed by Echo Kellum; main seasons 5–present; recurring season 4) is a technological savant, inventor, and bronze-medal-winning Olympic decathlete, who works with Felicity at Palmer Technologies. In season four, he helps her rescue Ray Palmer from Damien Darhk. He later learns Oliver's secret identity and helps them defeat Brie Larvan. He then helps Felicity and Noah shut down Rubicon to stop H.I.V.E.

He officially joins the team in season five as part of Oliver's efforts to expand and accept help after Diggle and Thea retired. While in the field, Curtis adopts a costume similar to his comic counterpart, including his 'Fair Play' jacket and T-shaped mask. He alternates between field work and tech support depending on the crisis, such as helping Felicity devise a means of translating the extraterrestrial technology during the Dominators' invasion. In the mid-season finale, "What We Leave Behind", Curtis is hospitalized after he is shot with a tuberculosis vaccine by new villain Prometheus, aided by the treachery of apparent teammate Evelyn Sharp. Curtis's husband Paul leaves him after discovering his vigilante activities, and they eventually divorce. At the end of season five, Curtis' fate is unknown due to the destruction of Lian Yu caused by Adrian Chase.

In season six, Curtis has survived the explosion by taking shelter in the plane with the others and is working with the team using his upgraded T spheres and other tech. He is revealed, that after leaving Palmer Technologies last year, he started an online business, which prompts Felicity to propose partnership with him to form their own company. After Oliver's actions causes Curtis to leave Team Arrow, he forms a new team with Dinah and Rene, with the same goals as the original Team Arrow.

He based on the DC Comics character Mister Terrific.

Adrian Chase / Prometheus

Further information: Adrian Chase and Prometheus (DC Comics)

Josh Segarra

Adrian Chase (portrayed by Josh Segarra; main season 5; guest season 6) is Star City's new district attorney in season five who helps Mayor Oliver Queen clean up the streets through the justice system. He is also Prometheus, a ruthless and mysterious hooded archer who kills, and has a grudge against Oliver Queen/Green Arrow, being the main antagonist of season five. He wears a black uniform almost identical to Oliver's first garb. Prometheus is aware of Oliver's identity, having deduced that the Green Arrow was the presumably-deceased Hood/Arrow, and begins a killing spree of innocent people with arrows and shurikens made from Oliver's discarded bolts. Prometheus has no tolerance for anyone else targeting Green Arrow and kills Tobias Church when the crime lord ignores a warning to leave Green Arrow alone. He also targets those close to Oliver by framing Quentin Lance, manipulating Evelyn Sharp into betraying Oliver, staging Billy Malone in his uniform to be killed by Oliver, and sends Black Siren (Laurel Lance's interdimensional doppelgänger) to mess with Oliver. Prometheus is actually Simon Morrison, the illegitimate son of Justin Claybourne, a pharmaceutical owner on the List who was killed during Oliver's first year as the Hood. Seeking revenge against Oliver, he was taught by Talia al Ghul to gain a skillset to match Oliver's. However, Simon was never close to his father who realized that Simon is psychopathic and wanted nothing to do with him. After Adrian and his allies kidnap Oliver's friends and family to Lian Yu, Oliver's party ultimately beats Adrian's. Unwilling to accept defeat, Adrian kills himself, detonating the bombs throughout the island in an attempt to kill Oliver's loved ones, successfully killing Samantha Clayton. In season six, Chase returns as one of Oliver's hallucinations while drugged by Vertigo.

On why Adrian is not Vigilante, as in the comics, Guggenheim stated,

We knew we were going to do Vigilante this year, we knew who the character of Prometheus was, we knew that the character of Prometheus was the son of one of Oliver's early kills in season one, we knew that he was going to be someone who was going to indoctrinate himself into Oliver's good graces in the mayor's office and eventually betray him. One morning... it occurred to me that if we called this character Adrian Chase, and we made him a district attorney, everyone would be so focused on when he becomes Vigilante that they wouldn't be expecting that he really was Prometheus.

He is based on the DC Comics characters Adrian Chase and Prometheus.

Rene Ramirez / Wild Dog

Main article: Wild Dog (comics)

Rick Gonzalez

Rene Ramirez (portrayed by Rick Gonzalez; main season 6–present; recurring season 5) is a vigilante in Star City whose reckless and cocksure actions prompt the Green Arrow to guide him. His vigilante attire consists of normal clothes, with a hockey mask to hide his identity; the red dog image on the shirt of his uniform, led to his gaining the moniker of "Wild Dog". Already trained as a soldier, Renee receives additional trainings from Oliver and becomes a skilled combatant. Prior to becoming a vigilante, Rene kills a criminal in defense of his family, which led to his wife's death during the altercation; his daughter was put in a foster care due to the community deeming him unfit as he succumbs to alcohol blackouts. With Curtis Holt's help, Rene seeks legal actions to get his daughter back. He later becomes Quentin Lance's assistant to help him reform Star City politically and they become friends.

Rene later becomes one of the main characters in season six, having survived the explosions on Lian Yu. He then becomes one of the main members of Team Arrow, and receives improved vigilante attire. However, after helping Team Arrow, Team Flash, Supergirl and the Legends save the multiverse from the interdimensional invaders of Earth-X, Rene is cornered by FBI agent Samandra Watson, who knows about his secret identity as Wild Dog and forces Rene to testify against Oliver as the Green Arrow. If Rene refuses, he will never see his daughter again. When Rene confesses this to Oliver, Oliver kicks him off the team. But the entire team is soon brought back together, in order to rescue Quentin from Cayden James and Black Siren. After the team rescues Quentin, Rene is kicked off the team permanently for abandoning his primary mission. Because of this, Dinah and Curtis leave the team too, no longer trusting Oliver. Oliver later apologizes to the three, but while they accept his apology, they refuse to return to Team Arrow and form a team of their own called New Team Arrow. Later, when it is revealed that Ricardo Diaz is the true villain of season six after he kills James, Rene is coerced by Diaz into testifying against Oliver at his trial, with Diaz threatening the safety of Rene's daughter in front of him. However, Rene, despite Diaz's threat, supports Oliver along with the rest of Team Arrow. After the trial, Oliver is free to go, thanks to Christopher Chance posing as the judge, and finally makes peace with Rene. Later, during the final battle with Diaz and his organization, The Quadrant, Quentin gets shot and eventually dies of his wounds in hospital later that day. Rene becomes one of the many members of Team Arrow, who mourns Quentin's death. When Oliver is arrested by Watson and the FBI, and publicly announces his identity as the Green Arrow to the world, Rene continues to protect Star City in his honour.

He is based on the DC Comics character Wild Dog.

Dinah Drake / Black Canary

Main article: Black Canary

Juliana Harkavy

Dinah Drake (portrayed by Juliana Harkavy; main season 6–present; recurring season 5) is a detective, formerly of the Central City Police Department. She went undercover in a drug ring with the alias "Tina Boland", only for her partner to be murdered after they were both revealed to be cops. After the particle accelerator explosion, she receives the ability to produce sonic waves with her scream and hunts down the leader of the drug ring to get revenge for her partner's death. Oliver and his team seek to recruit Drake as a candidate to succeed Laurel Lance as Black Canary. Dinah joined the Star City Police Department after she settled in the city.

Harkavy has been promoted to the main cast for season six, her character having survived the explosions on Lian Yu.

Following the battle on Lian Yu, Dinah was upgraded from a detective to police lieutenant. In flashbacks, Dinah was almost killed by Black Siren before being saved by Quentin. She later finds out that her former partner-lover, Vincent Sobel is alive and the Vigilante, She resumes her relationship with him before he is killed by Black Siren. She goes on a killing spree, targeting Black Siren and her allies. She is later fired from her job after Oliver fires the corrupt police captain, Kimberly Hill. Before leaving the desk, she fires Dinah and the rest of the honest cops. She and Black Siren become allies when Quentin is shot by Ricardo Diaz.

She is based on the DC Comics character Black Canary.

Ricardo Diaz / Dragon

Further information: Richard Dragon

Ricardo Diaz (portrayed by Kirk Acevedo; main season 7; recurring season 6) is a drug lord recently released from incarceration who leads a team street criminals and scientists in the development of an experimental steroid used by John Diggle to work around his tremors. He is later revealed to be the main antagonist of season six, who manipulates events of Oliver Queen and Cayden James' lives behind the scenes, and kills James upon admitting that he orchestrated his son's death and prepares to launch his own scheme upon Star City while getting its judges, politicians and police officers on his payroll. Ricardo later gains new allies in the Longbow Hunters. With help from Samandra Watson and the FBI, the politicians and police officers that are on Ricardo's side are arrested. Though Ricardo wounds Quentin Lance, he is knocked off the building by Black Siren yet survives and gets away. Now in hiding from both the federal authorities and Oliver Queen's allies for his machinations, Ricardo is vengeful towards Oliver for crippling his criminal empire and of him becomes a fugitive.

In season seven, Ricardo contacts some unnamed inmmates inside Slabside Maximum Security Prison to make Oliver's time there miserable. He later finds where Felicity is hiding and attacks her while William flees. Even though Ricardo tries to kill Felicity, he runs away (off-screen) when A.R.G.U.S. shows up. Despite the majority of the members of his criminal enterprise are arrested by F.B.I. agent Samantha Watson, she later suspects that some of her superiors are also in league with Ricardo.

He is based on the DC Comics character Richard Dragon.

Recurring characters

The following is a list of recurring actors who portrayed significant characters in multiple episodes, sometimes across multiple seasons. The characters are listed in alphabetical order by actor and grouped by the season in which they first appeared.

Introduced in season one

Lyla Michaels

Lyla Michaels (portrayed by Audrey Marie Anderson) - An A.R.G.U.S. agent and John Diggle's wife who served with him in Afghanistan where they first met. Within A.R.G.U.S. she uses the codename "Harbinger" and is the field leader of the Suicide Squad. Lyla and John also have a child, born in season three, who they name Sara in honor of Sara Lance (The child is later changed to a son named John Jr. following the events of "Flashpoint"). Lyla and Sara are kidnapped by Oliver when he masquerades as a devoted League of Assassins member called Al Sah-Him. Though this strains the friendship between John and Oliver when the truth comes out, Lyla understands that it was necessary in his battle to destroy Raʾs al Ghul and the League. In season four, after Amanda Waller's death, Lyla becomes her successor as leader of A.R.G.U.S. and works to reform the organization. While she primarily aids Team Arrow, Lyla occasionally makes appearances in The Flash to aid Team Flash when A.R.G.U.S. faces metahuman threats. However, Lyla along with her husband learns of the alteration of her life due to the events of The Flash episode "Flashpoint", leading her to distrust the Flash.

Lucas Hilton

Detective Lucas Hilton (portrayed by Roger Cross) - Quentin Lance's partner who helps him primarily when he is a detective in season one. He is killed by Cyrus Gold.

Helena Bertinelli / Huntress

Helena Bertinelli / Huntress (portrayed by Jessica De Gouw) - A vigilante who seeks revenge against her mob boss father and his associates for murdering her fiancé. Oliver makes a connection with her and tries to help her. They develop feelings for each other until Helena realizes Oliver still has feelings for Laurel, causing a rift. Helena's revenge is thwarted by Oliver, who puts her father in jail, making an enemy of her.

Edward Fyers

Edward Fyers (portrayed by Sebastian Dunn) - A mercenary on Lian Yu seen during the season one flashbacks. He is killed in battle on the island. In season three, it is revealed that Fyers worked for Amanda Waller.

Raisa

Raisa (portrayed by Kathleen Gati) - A long-serving domestic worker in the Queen mansion when the series begins; she has been close to Oliver since his childhood. She returns in season six to help take care of William, Oliver's son.

McKenna Hall

McKenna Hall (portrayed by Janina Gavankar) - A vice cop who dates Oliver.

Frank Chen

Frank Chen (portrayed by Chin Han) - A wealthy businessman and close friend of the Queen family who had a mysterious connection to The Undertaking until he is killed by Malcolm.

Frank Pike

Frank Pike (portrayed by Adrian Holmes) - A police lieutenant and Quentin Lance's superior. By the fifth season, Pike has been promoted to captain of police. He dies in season six during an attack caused by Cayden James.

Kate Spencer

Kate Spencer (portrayed by Chelah Horsdal) - The district attorney. She is killed in season two during Slade Wilson's rampage on Starling City.

Chien Na Wei / China White

Chien Na Wei / China White (portrayed by Kelly Hu) - A Chinese Triad leader who seeks revenge against Arrow for defeating her in combat during their first encounter. However, Oliver actually met her in Hong Kong two years prior, shown during the season three flashbacks. He helps capture her when she comes to Starling City. In season five, she escaped from prison with Carrie Cutter and Liza Warner but is later recaptured by Green Arrow and his team; she knows that the Green Arrow is really her nemesis, the Arrow.

Joanna De La Vega

Joanna De La Vega (portrayed by Annie Ilonzeh) - Laurel's friend and co-worker at legal aid firm CNRI.

Shado

Shado (portrayed by Celina Jade) - The daughter of Yao Fei. She helps train Oliver in archery and martial arts while on Lian Yu in the season one flashbacks; they become lovers. She is killed by Ivo during the season two flashbacks. Slade, who had secretly been in love with her, blames Oliver for her death and vows revenge. She later appears in Slade's hallucinations in the present time. Jade also portrayed Shado's twin sister, Mei, who Oliver meets in Hong Kong during a season three flashback. She also appears as a hallucination in season four during Oliver's second stay on Lian Yu.

Dinah Lance

Dinah Lance (portrayed by Alex Kingston) - The mother of Laurel and Sara, and former wife of Quentin. Dinah is a European history professor. Prior to Sara's disappearance, Dinah learned of her youngest daughter's relationship with Oliver, and is guilt-ridden for failing to stop her after the incident. After Sara's presumed death, Dinah's marriage with Quentin deteriorates and they divorce. She then leaves her family to find her daughter, correctly believing that she is alive. Dinah remarries after settling in Central City. Despite separating herself from Quentin after Sara's return, Dinah remains close to him and their daughters, and encourages Quentin to move on from their past.

Carly Diggle

Carly Diggle (portrayed by Christie Laing) - A love interest of John Diggle and widow of his brother, Andy.

Yao Fei Gulong

Yao Fei Gulong (portrayed by Byron Mann) - A skilled former Chinese general who assists Oliver on Lian Yu during season one. Yao Fei was framed for the massacre of a Chinese village by his superiors and sent to Lian Yu as punishment. He was found there by Edward Fyers who used Yao Fei's daughter Shado as leverage to extort his help bringing down a commercial airliner. During an escape attempt, Yao Fei encountered Oliver who he sheltered and taught survival skills, and brought him to Slade Wilson and Shado to teach him combat and archery, respectively. Yao Fei is killed by Fyers in the season one finale. In the season five flashbacks, it is revealed that Yao Fei was taught by Talia al Ghul. The character's name was derived from a DC Comics superhero character.

Floyd Lawton / Deadshot

Floyd Lawton / Deadshot (portrayed by Michael Rowe) - A mercenary who killed Andy Diggle under H.I.V.E.'s orders. Lawton is also a member of the Suicide Squad, although he is killed on a mission in season three. In season four, it is revealed that Lawton did not kill Andy. Instead, he was used by H.I.V.E. to fake Andy's death.

Walter Steele

Walter Steele (portrayed by Colin Salmon) - Moira's husband, Oliver and Thea's step-father, and Felicity's former employer. He was president of Queen Consolidated until he disappeared in episode 9, but was found alive in episode 21. He and Moira separate at the end of season one, and he returns in season two to help her run for mayor. It is revealed that Moira had confided in Walter about Thea's true paternity at some point after they marry. He is currently the chief financial officer of Starling National Bank.

Robert Queen

Robert Queen (portrayed by Jamey Sheridan) - Moira's late husband, Oliver's father, and Thea's legal father. Despite his marriage to Moira, Robert was not a faithful husband, having many illicit affairs outside of his marriage including with his company's intern, Isabel Rochev. Robert is secretly aware that Thea is Malcolm Merlyn's biological daughter, but accepted her and also acted as a surrogate father to Malcolm's son, Tommy. As a young man, Robert gained his wealth through corrupted means.; he gradually become remorseful of his greed, leading him to join Malcolm's secret society, Tempest, to improve Starling City's condition in hope of making amends. He also accidentally killed a local councilman, Henry Goodwin, when the latter seeks bribes from Robert, which traumatizes him and hates himself of becoming a killer. He and Oliver were both lost at sea when Malcolm sabotaged the Queen's Gambit. Robert sacrifices his life by killing himself, increasing Oliver's chances of survival and returning home to Starling City to right Robert's wrongs.

Introduced in season two

Amanda Waller

Amanda Waller (portrayed by Cynthia Addai-Robinson) - The leader of A.R.G.U.S. and commander of the Suicide Squad. In season two, Waller often forces John Diggle to work for her on missions other A.R.G.U.S. agents are unwilling to perform. She tries to have Starling City destroyed during Slade Wilson's attack to contain the Mirakuru soldiers, only to be stopped by John and Lyla. She has used the codename "Mockingbird". She is killed after the Shadowspire soldiers infiltrate A.R.G.U.S. in season four. In the season three flashbacks, she rescues Oliver from Lian Yu after witnessing his progressive skills in combat, and forces him to work for her and, in the process, furthers his training two years prior to his return to Starling City.

Sebastian Blood

Sebastian Blood / Brother Blood (portrayed by Kevin Alejandro) - A savvy politician who is working with Slade Wilson, a friend of Oliver Queen and romantic interest of Laurel Lance. He is a city alderman who is running for mayor to create his vision of Starling City. He leads a double life as a criminal, wearing a skull mask based on the nightmares he had of his late-father, called "Brother Blood". Seemingly benign, over the course of season two Sebastian is gradually revealed to be narcissistic and directly responsible for the murders of his parents. When Oliver and Laurel are close to discovering his secret, he misdirects them by having Laurel kill a decoy in the skull mask. Laurel uncovers his secret and Oliver tries to reason with Sebastian. Sebastian is betrayed by Slade, causing him to give the Mirakuru cure to Oliver, for which he is killed by Isabel Rochev.

Adam Donner

Adam Donner (portrayed by Dylan Bruce) - An assistant district attorney who becomes Laurel's boss in season two. Adam is fired later in the season.

Isabel Rochev

Isabel Rochev (portrayed by Summer Glau) - A senior executive at Stellmoor International who acquires half of Queen Consolidated in the second-season premiere. She later secures full control of the company in a hostile takeover. It is revealed she was Oliver's father's mistress during her internship and had been working with Slade to get revenge. Like Oliver, Isabel was also trained by Slade in martial arts, but she was later injected with the same Mirakuru drug that was given to Slade. In the season two finale Isabel is killed by Nyssa al Ghul. The character shares her name with the DC Comics villain "The Queen", who, in the comics, became CEO of Queen Industries following the death of founder Robert Queen.

The Captain

"The Captain" (portrayed by Jimmy Jean-Louis) - An unnamed man who is the captain of the ship Amazo.

Nyssa al Ghul

Nyssa al Ghul (portrayed by Katrina Law) - The daughter of Raʾs al Ghul. Nyssa is said to have encountered a dying Sara on Lian Yu after Oliver and Slade's fight on the Amazo, and brought Sara to the League where they became lovers, though her father never approved of their relationship. In season two, when Sara leaves the League, Nyssa works to force her return, threatening her family, but ultimately accepts her departure and later helps Oliver fight Slade's army when Sara decides to return to the League. In season three, when Sara is murdered, Nyssa goes on a vengeance quest to kill Malcolm, correctly assuming he is her killer though he claims otherwise. She befriends Sara's sister, Laurel, but her animosity with Oliver intensifies because he is unwilling to let her execute Malcolm. Nyssa feels betrayed when Raʾs declares Oliver his successor and releases Malcolm, and she leaves Nanda Parbat for Starling City and begins training Laurel. Nyssa is later captured by Oliver, Maseo Yamashiro and a team of assassins to bring her back to Nanda Parbat by force, for stealing the Alpha/Omega virus from the League. Instead of having Oliver kill Nyssa for her betrayal, Raʾs decides that the two should marry, to her evident dismay. However, Nyssa aligns herself with Oliver and his team to save Starling City, defying her father. She later returns to the League under Malcolm's leadership and bows to him despite making it clear that she intends to kill him one day. In season four Nyssa begs Laurel not to use the Lazarus Pit to bring Sara back to life, knowing Sara will return different. When Laurel does so regardlessly, Nyssa retaliates by using a potion Raʾs Al Ghul left to destroy the Pit. Nyssa later escapes and tries to manipulate Oliver into killing Malcolm by leveraging him with the cure to Thea's condition, though this results in war between her and Malcolm. Eventually, Nyssa succeeds when Oliver defeats Malcolm without killing him and Nyssa disbands the League to spite Malcolm and regain Team Arrow's trust. She later returns to attend Laurel's funeral. In season five, Nyssa returns to help Oliver free his friends from Adrian Chase on Lian Yu. She survives Chase's explosion on the island. According to Slade, she went looking for Evelyn Sharpe, who was imprisoned in a cage. In season six, Nyssa helps Team Arrow fight off the Thanatos Guild, assembled by Malcolm before his death on Lian Yu. She departs with Thea Queen and Roy Harper to destroy the three Lazarus Pits that Malcolm discovered.

Mark Francis

Mark Francis (portrayed by Nicholas Lea) - An associate of Walter Steele.

Sara Lance

Sara Lance / Canary / White Canary (portrayed by Caity Lotz) - Laurel's sister with whom Oliver had an affair. Sara, along with Laurel and their mother Dinah, is based on the DC Comics superheroine Black Canary. She was believed to have drowned with the sinking Queen's Gambit, but she resurfaces in season two as another vigilante, the "Canary", who is connected to the League of Assassins. She was originally portrayed by Jacqueline MacInnes Wood in the pilot. According to Kreisberg, she is "the beginning of the Black Canary story". She eventually wins her freedom from the League and returns to Starling City, to become part of Oliver's team in addition to working as a bartender at his nightclub. She breaks with Oliver over a dispute concerning Roy, and rejoins the League in order win their backing against Slade Wilson's army. She returns to Starling City on a mission for the League, but is killed by a mysterious archer. It is revealed that Thea killed Sara while drugged and controlled by Malcolm, as part of a plot to force Oliver into combat with Raʾs al Ghul. Lotz dubs Cassidy's lines when Laurel impersonates Sara as the Canary, and later appears as a hallucination of Laurel's. In season four, Laurel, Thea, and Malcolm resurrect Sara using the Lazarus Pit, but she returns mentally fractured until Oliver brings in his old friend John Constantine to help restore her soul. However, Sara's behavior remains volatile and she suffers an insatiable bloodlust, which prompts her to seek solitude away from home.

Anthony Ivo

Dr. Anthony Ivo (portrayed by Dylan Neal) - He is seen during flashbacks in season two. Anthony Ivo is the first character in the series who tells Oliver, Slade, and Shado about the "Mirakuru." Though he later murders Shado. After one of his hands has been cut off by Slade, he is killed by Oliver on Lian Yu.

Anatoli Knyazev

Anatoli Knyazev (portrayed by David Nykl) - A former KGB agent and Russian mob member who is based on the character KGBeast. Anatoli was kidnapped by Dr. Ivo and is brought to Lian Yu where he meets Oliver Queen and becomes a friend and is instrumental in Slade's defeat on the island. Sometime between the flashbacks and the present, Anatoli makes Oliver a Bratva captain and continues to assist him in the present.

In season six, he allied with Cayden James and Ricardo Diaz before defecting back to Oliver's side.

Jean Loring

Jean Loring (portrayed by Teryl Rothery) Moira's attorney for her murder trial. She later represents Oliver Queen when he is suspected to be Green Arrow due to the machinations of Ricardo Diaz.

Cindy / Sin

Cindy / Sin (portrayed by Bex Taylor-Klaus) - A wayward youth who Sara takes under her wing in Starling City after Cindy's father is killed on Lian Yu. Cindy later befriends Roy Harper and Thea Queen.

Introduced in season three

Lopez

Lopez (portrayed by Alison Araya) is a Star City police officer who later sided with Ricardo Diaz. She was later arrested by the FBI.

Chase

Chase (portrayed by Austin Butler) - A DJ who becomes Thea's romantic interest. It is revealed that he is a spy for the League of Assassins, and he commits suicide rather than be captured.

Andy Diggle

Andrew Diggle (portrayed by Eugene Byrd) - The brother of John Diggle who is first seen as a bodyguard in a season three flashback, but was previously known to have been killed by the H.I.V.E. organization, which hired Floyd Lawton as their hitman. However, Andy led a double life in the military as a drug lord associated with the Shadowspire organization in Afghanistan; H.I.V.E. faked Andy's death and he eventually became one of Damien Darhk's "Ghosts". John suspects that Andy joined H.I.V.E. of his own free will, and tries to reconcile with his brother while saving him from damnation. Andy later helps John and Lyla stop Shadowspire from obtaining a weapon from A.R.G.U.S and is welcomed back into the family by John, but this proved to be a facade to get closer to Team Arrow. Later, he works with Malcolm Merlyn to get Darhk out of prison, and restore Darhk's powers. Andy's actions result in Laurel's death at Darhk's hands. As a result, John pursues and kills Andy to protect the rest of his family.

Celia Cox

Celia Cox (portrayed by Christina Cox) - A former mayor Starling City.

Tatsu Yamashiro / Katana

Tatsu Yamashiro / Katana (portrayed by Rila Fukushima) - Based on the DC Comics character of the same name, she is a mentor to Oliver during his time in Hong Kong. Devon Aoki was originally cast in the role but left due to a scheduling conflict. She is the wife of Maseo Yamashiro. In the present day, her relationship with her husband is estranged after the death of their son and she joins the Crescent Order after returning to Japan. She nurses Oliver back to health after he is nearly killed by Raʾs al Ghul. Tatsu supports Team Arrow during their war with the League of Assassins. After a short sword-fight with her husband, she kills Maseo and mourns him. She later helps Nyssa and Oliver in curing Thea from the effects of the Lazarus Pit.

Carrie Cutter / Cupid

Carrie Cutter / Cupid (portrayed by Amy Gumenick) - Based on the DC Comics character of the same name. Carrie is a lethal villain with a dangerously obsessive crush on the Arrow but is later enrolled into the Suicide Squad, where she forms a crush on Floyd Lawton / Deadshot.

Michael Amar / Murmur

Michael Amar / Murmur (portrayed by Adrian Glynn McMorran) - A man whose mouth is sewn shut, who enacts a deadly revenge scheme on the Starling City police for imprisoning him in Iron Heights Penitentiary on a false confession. He escapes in Darhk's prison riot and joins H.I.V.E. but is captured and returned to prison.

Ra's al Ghul

Matt Nable portrays Ra's al Ghul (Template:Lang-ar; "The Demon's Head," the main antagonist of season three and leader of the League of Assassins who has lived for at least two centuries (having been born some decades before 1854) due to the use of the Lazarus Pit, a pool which can heal wounds and bring the dead back to life. He is the father of Nyssa al Ghul. Raʾs has never acknowledged Sara as a member of the League and disapproves of Nyssa's relationship with her. Oliver claims to have killed Sara and challenges Raʾs al Ghul to a trial by combat which Raʾs easily wins, nearly killing Oliver by stabbing him through the chest. Raʾs wants to make Oliver his heir—the new Raʾs al Ghul—because Oliver is the only man to survive a death match against him, fulfilling a League prophecy regarding his destined successor. Raʾs become fixated with Oliver, neglecting other candidates, and becomes estranged with his daughter. When Oliver refuses his offer, Raʾs orders the League to kill the people of Starling City; he stabs Thea and leaves her near death, with a cure via the Lazarus Pit available only if Oliver agrees to become his heir. Oliver accedes, and Raʾs names him "Al Sah-Him". After Oliver captures Nyssa, Raʾs forces an engagement between them. He also orders Oliver to unleash the Alpha/Omega bioweapon on Starling City, oblivious that Oliver was working with Malcolm and Nyssa to take down the League from the inside. In the season finale, Oliver kills Raʾs. Malcolm becomes Raʾs successor of the League's leadership, and thus its prophecy is fulfilled as Malcolm survived an assault by Raʾs during his captivity.

Ted Grant / Wildcat

Ted Grant / Wildcat (portrayed by J. R. Ramirez) - Based on the DC Comics character of the same name. Grant is a former boxer who runs a gym for underprivileged youth. He provides Laurel with combat training, and in the process becomes Laurel's friend and confidant. He is also a former low-profile vigilante who watched over the Glades.

Donna Smoak

Donna Smoak (portrayed by Charlotte Ross) - Felicity's mother, and a former cocktail waitress from Las Vegas. Donna was previously married to cyber-criminal Noah Kuttler which led to Felicity's conception prior to leaving him; Donna claimed that Noah abandoned them, resulting in an estranged relationship with Felicity until they reconcile seventeen years later. Donna meets and dates Quentin Lance, but remains bitter over Noah and his criminal past. She helps Quentin to cope with the loss of his eldest daughter, Laurel. As of the season five premiere, Donna and Quentin have split up.

Matthew Shrieve

Matthew Shrieve (portrayed by Marc Singer) - US Army General who is introduced in a flashback at the end of the episode "The Return". Shrieve presents himself as a more reasonable counterpart to Amanda Waller, allowing Oliver and the Yamashiros to go free after their mission in Hong Kong is completed; he is later revealed to be the one who ordered their deaths, betraying and framing Waller as he plots to use the virus they acquired to cripple China, which he sees as a growing threat to America. Shrieve is also responsible for causing Akio's death and in vengeance he is brutally tortured by Oliver before being executed by Maseo.

Maseo Yamashiro

Maseo Yamashiro (portrayed by Karl Yune) - Based on the DC Comics character of the same name. He was Oliver's handler, and later good friend, during his time in Hong Kong. He becomes estranged from his wife, Tatsu Yamashiro, after the death of their son, Akio, and joins the League of Assassins as "Sarab". However he remains loyal to Oliver and covertly ensures his survival after his duel with Raʾs al Ghul, and still loves Tatsu. Despite this he is loyal to Raʾs and becomes a key leader in the League's mission to force Oliver to take Raʾs place, going as far as to kill the Starling City mayor to frame him. He is eventually killed by Tatsu after a sword-fight.

Introduced in season four

Baron Reiter

Baron Reiter (portrayed by Jimmy Akingbola) - Based on the DC Comics character Baron Blitzkrieg. He is the leader of Shadowspire in the series flashbacks, when he was searching for magical artifacts on Lian Yu, specifically the idol that Damien Darhk later possesses. He is eventually killed by Oliver when Taiana gains control of the idol's powers and weaken him long enough for Oliver to hurl a knife into Reiter's back, killing him.

Noah Kuttler / Calculator

Noah Kuttler / Calculator (portrayed by Tom Amandes) - Based on the DC Comics character of the same name. Kuttler is Felicity's long-lost father, who is a career cyber-criminal whom Donna Smoak divorced from eighteen years previously. He has advanced computer science and hacking skills which surpasses his daughter's, which he uses to blackmail Roy Harper out of hiding. Kuttler is ultimately arrested by Donna's current romantic partner, Quentin Lance, after Felicity turns her father in. After escaping from prison, Kuttler finds himself being targeted by H.I.V.E. due to their awareness that he possibly can thwart their plans for world domination with his computer skills; he helps his daughter in stopping H.I.V.E. after Felicity and her friends save him, but leaves Star City once more at Donna's insistence.

Phaedra Nixon

Phaedra Nixon (portrayed by Lynda Boyd) - A leading member of the H.I.V.E. organization.

Lonnie Machin / Anarky

Lonnie Machin / Anarky (portrayed by Alexander Calvert) - Based on the DC Comics character of the same name. Lonnie is a deranged freelancing criminal who is willing to do whatever it takes to impress a potential employer. After his face was disfigured and burned by Thea, he becomes a rogue terrorist and plans on getting his revenge on Darhk for betraying him.

Ruvé Adams

Ruvé Adams (portrayed by Janet Kidder) - The wife of Damien Darhk who shares his ambitions and campaigns against Oliver for mayor of Star City. She wins the election and becomes mayor after Oliver drops out of the race. She is held captive by Lonnie Machin, who stabs her in the chest with an arrow. Unable to move, she is crushed by falling debris from the destruction of Darhk's nuclear bomb shelter. Before she dies, she asks Oliver to save her daughter.

Damien Darhk

Damien Darhk (portrayed by Neal McDonough) - A former member of the League of Assassins and a friend-turned-adversary to Raʾs al Ghul. He is the main antagonist of season four. Years ago, Darhk left the League after being denied its leadership, taking a sample of the Lazarus Pit and several League members with him after Raʾs failed orders to execute him. He leads his own clandestine group, H.I.V.E., and plots to start a nuclear holocaust in order to rule a post-apocalyptic world in a plan known as "Genesis". According to Raʾs, Darhk also orchestrated Bronze Tiger's plot to steal Malcolm's prototype earthquake machine and Mark Shaw's attempt to acquire the A.R.G.U.S. file. In season four, he is introduced as the main antagonist, a formidable hand-to-hand combatant with mystical abilities—he can remotely manipulate objects and people, and can drain the life force from a person through physical contact. Darhk becomes enemies of Green Arrow and Oliver, believing the two are working together and not the same man (although he does express suspicions). Darhk also kidnapped Ray Palmer to steal his technology for Genesis. He ultimately deduces the true identities of the entire Arrow team. Despite being a sadistic terrorist leader, Darhk is also a loving father and husband; his wife, Ruvé Adams, also shares her spouse's cruelty and is supportive of his endeavors. Through Malcolm, Darhk learns that Oliver has fathered a son and uses him as a means to scuttle Oliver's mayoral campaign. Quentin and Mari McCabe discover that a mystical idol in Darhk's possession is the source of his supernatural powers, and Mari destroys it, leaving Darhk powerless and imprisoned. He later escapes with the assistance of Malcolm and Andy, regaining his powers from his rebuilt idol in the process, and kills Quentin's daughter, Laurel, in retaliation for his imprisonment. Following the destruction of Genesis and his wife's death, Darhk attempts to destroy all of Star City, but the idol is destroyed once more, nullifying his powers. Darhk fights Oliver but is overpowered, and taunts Oliver stating he spared Slade Wilson when he killed his mother. Oliver reminds Darhk of his crimes and kills him.

Evelyn Sharp

Evelyn Crawford Sharp / Artemis (portrayed by Madison McLaughlin) - Based on the DC Comics character Starling. She takes up the mantle of the Black Canary following Laurel's death, eventually settling on the name Artemis. She becomes one of the new recruits of Team Arrow despite her moral ambiguity, but ultimately betrays the team to Prometheus after learning about the List and Oliver's former identity as the Arrow.

Conklin

Conklin (portrayed by Ryan Robbins) - A member of Shadowspire in the series flashbacks. Conklin is highly suspicious of Oliver and his presence on Lian Yu, and regularly tries to convince his boss, Reiter, not to trust Oliver. He is later killed by Oliver when the two are left alone in a room and fight in hand-to-hand combat. In "Taken", a primordial energy takes the form of Conklin and stands at the entrance of the cave, speaking in tongues, but disappears when it notices the spell tattoo on Oliver's chest and deemed him worthy to pass.

Taiana Venediktov

Taiana Venediktov (portrayed by Elysia Rotaru) - A woman whose life Oliver saves in the flashbacks, faking her death to protect her from Shadowspire. Oliver kills her brother, who Conklin had sent to attack him, and initially tries to hide it from Taiana. After they get caught by Conklin, Oliver is tortured, and they are both imprisoned. While Taiana is taking care of his wounds—and after Shado appears in his dreams, telling Oliver to do the right thing—he confesses. She later helps Oliver escape as they manage to steal the idol from Reiter, but the idol's power begins to corrupt Taiana. Realizing she cannot control it, she asks Oliver to kill her, and he does.

Elisa Schwartz

Elisa Schwartz (portrayed by Venus Terzo) - A Star City General Hospital doctor who often treats several Team Arrow members. She is very aware of Green Arrow's identity when she treated a dying Laurel.

Alex Davis

Alex Davis (portrayed by Parker Young) - An employee of Oliver's mayoral campaign and love interest for Thea. When Oliver drops out of the mayoral race, he starts to work for Ruvé Adams and it is later revealed that he is being controlled by her. Alex is killed by Lonnie Machin when he stumbles into a fight between Thea and Lonnie, due to Lonnie believing that Alex is clouding Thea's mind.

Introduced in season five

Tobias Church

Tobias "Charon" Church (portrayed by Chad L. Coleman) - An imposing gangster looking to unite the various criminal enterprises in Star City under his own singular command. Church sought to eliminate Green Arrow to proceed with his plan to use Star City's docks to ship drugs and weapons between the other city's major crime families should this be "the major crime families of other cities", "the other major crime families of the city" or "the other major crime families of [a specific other city]"?}} with ease, having frequent encounters with him. After capturing and torturing the Green Arrow's sidekick, Rene Ramirez / Wild Dog, Church learns his identity is Oliver Queen, but is defeated by him. While being transferred to Iron Heights prison, Church is murdered by Prometheus for ignoring his warnings to not target Green Arrow.

Rory Regan / Ragman

Rory Regan / Ragman (portrayed by Joe Dinicol) - Based on the DC Comics character of the same name. Regan arrives "fresh from a personal tragedy" hoping to find answers in Star City, where he ultimately crosses paths with Green Arrow.

Talia al Ghul

Talia al Ghul (portrayed by Lexa Doig) - Based on the DC Comics character of the same name, a worldly and cultured elite warrior. Milli Wilkinson previously portrayed a younger version of the character on Legends of Tomorrow. Talia is Raʾs al Ghul's daughter and Nyssa al Ghul's eldest sister; she trained one of Oliver's mentors, Yao Fei Gulong, before training Oliver herself in Russia. She seeks revenge against Oliver for her father's death by aligning herself with Adrian Chase. Talia is also enemies with Nyssa after the former left their family, and their feud is intensified after knowing Nyssa's role of their father's death. Talia also controls a League of Assassins remnant.

Viktor

Viktor (portrayed by Mike Dopud) - A member of the Bratva who appears in the flashbacks. He is eventually killed by Konstantin Kovar.

Zoe Ramirez

Zoe Ramirez (portrayed by Eliza Faria as a teenager and Andrea Sixtos as an adult) - The daughter of Rene Ramirez. Rene does not have legal custody of Zoe at first, but later Zoe starts living with her father full time. She is also learned her father's vigilante life, and is supportive of his heroic endeavors because of her sharing his hatred towards the crimewave that plaguing their home and took her mother's life. In season six, Zoe bonds with her father's vigilante associates, and sees Dinah Drake as a surrogate mother. In season seven, it is revealed that in flash-forwards, Zoe would follow her father's vigilante path and becomes Dinah Drake's protégée.

Konstantin Kovar

Konstantin Kovar (portrayed by Dolph Lundgren) - A member of the Russian government who appears in the season's flashbacks. Oliver seeks to kill him to fulfill Taiana's last request. A character of the same name appears in DC Comics as the father of the superhero Red Star.

Ishmael Gregor

Ishmael Gregor (portrayed by David Meunier) - Based on the DC Comics character of the same name. Gregor is the Pakhan ("Godfather") of the Bratva (Russian mafia), who takes a special interest in Oliver Queen.

Susan Williams

Susan Williams (portrayed by Carly Pope) - Based on the DC Comics character of the same name. Susan is a reporter from Coast City for Channel 52 news, who becomes interested in Oliver and the Green Arrow. She later becomes his love interest.

Billy Malone

Detective Billy Malone (portrayed by Tyler Ritter) - A new member of the Star City Police Department and Felicity's new boyfriend. He is inadvertently killed by Oliver due to a trap set by Prometheus.

Kullens

Kullens (portrayed by Greg Rogers) is a Star City Councilman who is shadowed by Susan Williams. He was later among the politicians on Ricardo Diaz's side. Kullens was among those who were arrested by the FBI.

Alena

Alena (portrayed by Kacey Rohl) - A member of the Helix hacking organization who attempts to recruit Felicity to their ranks after helping her clear Diggle's name. She later aligns with Team Arrow after Cayden James is driven insane by the loss of his son, and works with Felicity in battling James' cabal.

Introduced in season six

P. Parks

P. Parks (portrayed by Josh Byer) is a Star City police officer who is among the police officers on Ricardo Diaz's side. When the FBI and Team Arrow raid the Star City Police Department, Parks is defeated by Green Arrow and Black Canary and arrested by the by FBI.

Cayden James

Cayden James (portrayed by Michael Emerson) - The former leader of the hacktivist organization Helix. He initially appears in season five played by an unnamed stunt double before Emerson was cast. In season six, he serves as a red herring before Ricardo Diaz reveals himself as its arc's chief antagonist. Once incarcerated by A.R.G.U.S., James is broken out of custody by Helix members with the aid of Felicity Smoak. Later, James reemerges in Star City after rescuing an injured Black Siren from Lian Yu. With Black Siren now under his employment, James and his followers Ricardo Diaz, Vincent Sobel, Anatoli Knyazev, and Boots are in the process of working on their latest unknown project known as Arclight. It is later revealed that James believes that Oliver as the Green Arrow played a role in the death of James' son Owen. However, Oliver knows that he did not kill Owen James, due to he was in Hub City at the time of his death, and after he got a copy of the fabricated evidence, Oliver suspects that a member in Cayden James' cabal framed the Green Arrow for his own schemes. After Cayden surrenders upon seeing Oliver's son, Oliver Queen visits him in the police station where he will make arrangements to let him visit his son's grave. After Oliver Queen leaves, Ricardo Diaz enters his room with the help of a police captain that is on his side. Before stabbing Cayden in a vital part of his body, Ricardo admitted to him that he was the one who orchestrated his son's death. As Cayden dies, Ricardo has him say hi to his son for him.

Kimberly Hill

Kimberly Hill (portrayed by Tina Huang) - A corrupt SCPD officer and ally of Diaz. She took over the duties of being captain following the death of Pike while working with Armand to take down Oliver. Kimberly is fired by Oliver after he discovers her allegiance to Diaz. She is later arrested by Samandra Watson after the F.B.I. obtains evidence of her crimes.

"Boots" Sheck

"Boots" Sheck (portrayed by Tobias Jelinek) - The right-hand man of Cayden James and a member of his secret cabal. He was responsible for saving Black Siren on the detonating Lian Yu, ensuring her loyalty to his boss's cause. Scheck is later killed by Vigilante, revealing the latter nature as an apparent mole in the group.

Samandra Watson

Samandra Watson (portrayed by Sydelle Noel) - An FBI agent investigating the vigilantes of Star City. Watson first arrives in Star City after a leaked photo of Oliver Queen as Green Arrow is exposed to the media. Although the photo was proven to be a fake, Watson remains suspicious of Oliver and chooses to stay behind in Star City to look further into Team Arrow as a whole. Eventually, Oliver comes clean to Samandra about it when he and the FBI work together to apprehend those involved with Ricardo's plot. Oliver agreed to turn himself over to her in exchange that the rest of Team Arrow is spared.

In season seven, Felicity approaches Samandra where she states that Ricardo Diaz has resurfaced and asks for the FBI's help in bringing down Diaz. She was reluctant at first until the Longbow Hunters attacked a CDC facility. After Red Dart and Kodiak get away while Silencer is secretly apprehended by Mad Dog, Samandra is reassigned to desk duty in Washington DC.

Nick Anastas

Nick Anastas (portrayed by Evan Roderick) - A Star City police officer who (initially) had a firm anti-vigilante stance of the Star City Police Department. He is also the boyfriend of Curtis Holt. Nick is one of the few honest cops that does not side with Diaz.

Sam Armand

Sam Armand (portrayed by Pej Vahdat) - A corrupt district attorney whose an ally of Diaz. Sam is fired by Oliver after he discovers his allegiance to Diaz. He is later arrested by Samantha Watson after the F.B.I. obtains evidence of his crimes.

Vincent Sobel/Vigilante

Vincent Sobel/Vigilante (portrayed by Johann Urb, voiced by Mick Wingert when masked) - Despite belief that Josh Segarra voiced the character, thus implying that Adrian Chase was also Vigilante, it was revealed that his character was instead Prometheus. As such, Guggenheim indicated that the reveal of who Vigilante actually was would "probably" not be seen in season five and that Vigilante's identity was someone already seen before. Sobel was originally portrayed by Clayton Chitty in the fifth season.

Guest stars

The following is a supplementary list of guest stars, some recurring, who appear in lesser roles. The characters are listed, in alphabetical order by actor, by the season in which they first appeared.

Introduced in season one

• Constantine Drakon (portrayed by Darren Shahlavi) - The head of Adam hunt's security and deadly in hand to hand combat. He is the first real foe that the Arrow faces and is killed by an arrow to the chest.
• Ted Gaynor (portrayed by Ben Browder) - Diggle's former military commander who turns rogue and starts robbing cash from truck transfers only to be killed by the Arrow. Gaynor returns in flashbacks where his military history with Diggle is shown.
• Garfield Lynns (portrayed by Andrew Dunbar) - A former firefighter who is killing other firefighters as revenge for being abandoned in a fire.
• The Count / Count Vertigo (portrayed by Seth Gabel) - Aealer of the deadly drug known as Vertigo. Having already hated The Count for Thea's Vertigo addiction, Oliver kills the drug lord in season two when The Count is holding Felicity hostage.
• Derek Reston (portrayed by Currie Graham) - The leader of the gang consisting of his family members.
• Alexi Leonov (portrayed by Eugene Lipinski) - A Russian Bratva member. He is killed by Slade Wilson in season two.
• Adam Hunt (portrayed by Brian Markinson) - A corrupt businessman who is the first person on "The List" stopped by Oliver. He was blackmailed into involvement with the Undertaking. Hunt is later killed by Malcolm Merlyn.
• Frank Bertinelli (portrayed by Jeffrey Nordling) - Helena's mob boss father who is loosely based on the comic book character Guido Bertinelli. He is killed in the episode "Birds of Prey", but not by Helena.
• Nick Salvati (portrayed by Tahmoh Penikett) - The right-hand man of Frank Bertinelli.
• Mr. Blank (portrayed by J. August Richards) - Mr. Blank is an assassin hired to kill Laurel and a witness for a court case. Originally, the character would have been Onomatopoeia, but the producers found that the character could not be adapted for TV, so they had to create Mr. Blank.

Introduced in season two

• Barry Allen / Flash (portrayed by Grant Gustin) - A young crime scene investigator from the Central City Police Department. Oliver first meets Barry when the latter arrives to personally investigate a superhuman-related crime in Starling City. Barry discovers that Oliver is his vigilante idol, the Arrow, saves Oliver's life and helps him to begin uncovering the Mirakuru plot orchestrated by Slade Wilson. Ultimately, both Barry and Oliver become good friends and they occasionally offer each other advice and support. Barry later gains the power of super-speed, and is inspired by Oliver's example to become a hero known as the "Flash". He occasionally joins Oliver on missions and remains a trusted friend and ally. Gustin stars as the character on The Flash.
• Samantha Clayton (portrayed by Anna Hopkins) - The mother of Oliver's son William. Oliver dated Samantha in college while in his relationship with Laurel, and she became pregnant. Moira bribed her to tell Oliver that she miscarried, and she moved to Central City, where she had their son. Oliver did not find out about William's existence for about a decade. A year after Oliver learned of his fatherhood, Samantha and William are abducted by Adrian Chase and his allies. After the Lian Yu explosion, Samantha was badly injured and later died in Oliver's arms, asking him to look out for her son.
• Barton Mathis / Dollmaker (portrayed by Michael Eklund) - A misogynistic serial killer and an enemy of Quentin Lance, later killed by Sara Lance.
• Ben Turner / Bronze Tiger (portrayed by Michael Jai White) - An assassin who uses metal claws as weapons and subsequently becomes a member of the Suicide Squad. While it was said that he died during a Suicide Squad mission in the comics, Bronze Tiger turned up alive in season seven as an inmate at Slabside Maximum Security Prison.
• William Tockman / Clock King (portrayed by Robert Knepper) - A criminal mastermind.
• Caitlin Snow / Killer Frost (portrayed by Danielle Panabaker) - A bioengineering expert from S.T.A.R. Labs and a metahuman with cryokinetic abilities. Caitlin helps Felicity in recreating the Mirakuru antidote, and occasionally helps Team Arrow on missions. Panabaker stars as the character on The Flash.
• Cyrus Gold (portrayed by Graham Shiels) - An acolye of Brother Blood who is the first to survive injection with Mirakuru in the present day. Oliver defeats him in the episode "Three Ghosts".
• Mark Scheffer / Shrapnel (portrayed by Sean Maher) - A former toy-shop owner who becomes a psychotic serial bomber and later a member of the Suicide Squad. He was killed during the first mission.
• Cisco Ramon / Vibe (portrayed by Carlos Valdes) - A mechanical engineering genius at S.T.A.R. Labs with known metahuman abilities to detect anomalies within reality and sonic manipulation. Cisco helps upgrade the arsenals of Oliver, Laurel, and Sara, aids Ray with his Atom suit, and designs a new safe house for Oliver. Valdes stars as the character on The Flash.

Introduced in season three

• Mark Shaw (portrayed by David Cubitt) - Based on the DC Comics character Manhunter, Shaw is an A.R.G.U.S. operative in Corto Maltese who crosses paths with Diggle, and will eventually be known as "Manhunter".
• Senator Joseph Cray (portrayed by Steven Culp) - The target of a rescue mission by the Suicide Squad. He works against his rescuers, since he had engineered a hostage crisis to bolster his presidential ambitions.
• Cooper Seldon (portrayed by Nolan Funk) - Felicity's boyfriend during her time at MIT, and leader of the hackivist-turned-terrorist organization "Brother Eye". He escapes in Darhk's prison riot and joins H.I.V.E. as their hacker.
• Jake Simmons / Deathbolt (portrayed by Doug Jones) - A metahuman from Opal City who receives his powers through unknown means, with the ability to harness and weaponize plasma energy.
• Danny "Brick" Brickwell (portrayed by Vinnie Jones) - A gang leader in Starling City. He earns the nickname "Brick" from being shot multiple times, without ever being put down. Brick organizes the takeover of the Glades in Oliver's absence and is later revealed to have killed Malcolm's wife, Rebecca, and thus is the indirect catalyst for the events of the series. Damien Darhk extorts Brick into joining H.I.V.E. after they escape from prison. In season seven, Brick is shown as an inmate at Slabside Maximum Security Prison.
• Ray Palmer / Atom (portrayed by Brandon Routh) - Based on the DC Comics character of the same name, Ray is a scientist, inventor, minister and businessman who succeeds Isabel Rochev as CEO of Queen Consolidated after her crimes are posthumously exposed. Ray seeks to make improvements to Starling City after it survived terrorist attacks, and has the intention of renaming it "Star City", involving himself with the city's legislative body. After his fiancée, Anna Loring, is killed by one of Slade Wilson's Mirakuru soldiers, Ray uses the company's research and technical inventions to develop a suit powered by white dwarf matter, which, in his theory, can alter the wearer's size down to the subatomic level. Ray seeks to use it to become a high-tech vigilante, named "Atom". He renames Queen Consolidated "Palmer Technologies" and makes Felicity his Vice President. Ray and Felicity become lovers until Ray realizes that she is in love with Oliver. Ray assists Team Arrow's fight against Raʾs al Ghul to stop him unleashing the Alpha/Omega bioweapon. In the season finale Ray is working on the suit with the intention of giving it the power to shrink but a malfunction causes the entire top floor of Palmer Technologies to blow up. It is revealed later that Ray is alive but was being held captive by Darhk until he is freed by Team Arrow to join their fight against H.I.V.E.
• Werner Zytle / Vertigo (portrayed by Peter Stormare) - Based on the DC Comics character Count Vertigo that appears in The New 52, Werner is the new purveyor of the drug Vertigo after the death of The Count in season two. Zytle seeks to kill Arrow in a bid to raise his profile as a crime lord, but is defeated after encountering the Canary sisters; he becomes their enemy and seeks reprisal against the Canaries.
• Digger Harkness / Captain Boomerang (portrayed by Nick E. Tarabay) - Based on the DC Comics character of the same name, Harkness is a former ASIS operative and Suicide Squad member who is highly skilled in martial arts and espionage, whose weapons of choice are custom-made boomerangs.
• Simon Lacroix / Komodo (portrayed by Matt Ward) - Based on the DC Comics character of the same name, Lacroix is a mercenary archer who uses the name Komodo and was originally suspected of killing Sara Lance / Canary.

Introduced in season four

• Jeremy Tell / Double Down (portrayed by JR Bourne) - Based on the DC Comics character of the same name, he is a metahuman who can turn his playing card tattoos into weapons.
• Vandal Savage (portrayed by Casper Crump) - Savage is a 6,000-year-old immortal, who has manipulated leaders throughout history in an attempt to gain dominion over the entire world. He becomes a main antagonist in the first season of Legends of Tomorrow.
• Demolition Team - A group of mercenaries hired by the H.I.V.E. who targets buildings. They were hired by Damien Darhk to kill Quentin Lance by destroying the building he was in only to be defeated by Team Arrow.
  • Rosie (portrayed by Rachel Luttrell) - The leader of the Demolition Team who wields a nailgun.
  • Hardhat (portrayed by Marc Trottier) - An axe-wielding member of the Demolition Team.
  • Jackhammer (portrayed by Daniel Cudmore) - A sledgehammer-wielding member of the Demolition Team.
• Vixen (portrayed by Megalyn Echikunwoke) - Based on the DC Comics character of the same name and born in Africa but raised in the United States, Mari is orphaned at a young age and inherits her family's mystical Tantu Totem, which allows her to access the powers of the animal kingdom, and becomes a Detroit-based superpowered vigilante. Mari is a friend and ally to both Oliver and Barry Allen. Echikunwoke reprises her role from the animated Arrowverse series Vixen.
• Carter Hall / Hawkman (portrayed by Falk Hentschel) - Hall is the latest reincarnation of an Egyptian prince who is fated to reincarnate throughout time along with his soulmate, Kendra Saunders / Hawkgirl. Carter stars as the character on Legends of Tomorrow.
• Dr. Aldus Boardman (portrayed by Peter Francis James) - A classics professor at St. Roch University, who is an expert on the story of Vandal Savage, and of Hawkman and Hawkgirl.
• Brie Larvan (portrayed by Emily Kinney) - A female version of Bug-Eyed Bandit, a narcissistic technical genius and killer who becomes a rival to Felicity Smoak, reprising the role from The Flash.
• Kendra Saunders / Hawkgirl (portrayed by Ciara Renée) - A young woman who is just beginning to learn that she has been repeatedly reincarnated over the centuries. When provoked, her ancient warrior persona manifests itself, along with wings that grow out of her back, earning her the name Hawkgirl. Renée stars as the character on Legends of Tomorrow.
• Jessica Danforth (portrayed by Jeri Ryan) - A friend of the Queen family and mayoral candidate for Star City who drops out of the race after her daughter's kidnapping.
• John Constantine (portrayed by Matt Ryan reprising his role from Constantine) - An enigmatic and irreverent former con man who is now a reluctant supernatural detective. Ryan appears in the season's fifth episode per a "one-time-only-deal". Constantine is an associate of Oliver's ever since they met on Lian Yu and plays a pivotal role in completing Sara Lance's resurrection.
• Liza Warner (portrayed by Rutina Wesley) - Based on the DC Comics character "Lady Cop," Warner is a member of the anti-vigilante task force which has gone rogue.
• Esrin Fortuna (portrayed by Gabriella Wright) - An immortal shaman Oliver consults on John Constantine's recommendation to learn about Darhk's powers.

Introduced in season five

• Kara Danvers / Supergirl (portrayed by Melissa Benoist) - Supergirl is Barry Allen's friend and ally from another universe, whom Oliver also ultimately befriends during an alien invasion crisis. Benoist reprises her role from the series Supergirl. In season six, Benoist portrays Kara's Earth-X doppelgänger, Overgirl, who is Oliver's doppelgänger's Kryptonian bride.
• J.G. Walker (portrayed by Garry Chalk) - A corrupt US Army general who frames Diggle to conceal his own illegal arms dealing, which is ultimately exposed.
• Derek Sampson (portrayed by Cody Runnels) - A drug dealer terrorizing Star City. In season seven, he appears as an inmate at Slabside Maximum Security Prison.
• David Singh (portrayed by Patrick Sabongui) - The Central City Police Captain who provided the Green Arrow and his team with information that lead to the location of Dinah Drake. Sabongui reprises his role from The Flash.
• Christopher Chance / Human Target (portrayed by Wil Traval) - Based on the DC Comics character of the same name, he is hired by Oliver to serve as his body double when he is mayor. He is later summoned by John Diggle to pose as Tommy Merlyn in Green Arrow's costume during Oliver Queen's trial and later took the place of Judge C. McGarvey. Upon the jury finding Oliver Queen guilty, Chance as Judge McGarvey had Oliver Queen seek probation and then he is free to go. After the trial is over and Chance unmasks himself to Oliver, he insists they not seek his help for another year.
• Nate Heywood / Steel (portrayed by Nick Zano) - A historian-turned-metahuman superhero who can transform himself into a steel-like form. Zano stars as the character on Legends of Tomorrow.
• Sean Sonus / Discord (portrayed by Steve Bacic) - Based on the DC Comics character of the same name, Sonus is a drug dealer who killed Central City Police Department officer Vincent Sobel during the S.T.A.R. Labs particle accelerator incident in season two of Arrow and got powers as a metahuman to further his criminal enterprise. Sean is hunted across the country by Dinah Drake until they meet again in Hub City.

Introduced in season six

• Onyx Adams (portrayed by Chastity Dotson) - A former League of Assassins member and a former CIA black ops member.
• Dr. Harrison "Harry" Wells (portrayed by Tom Cavanagh) - A renowned scientist from Earth-2 and an ally of Team Flash. Wells is also a parallel universe counterpart of Earth-1's Dr. Harrison Wells, who was murdered by Eobard Thawne.
• Eobard Thawne / Reverse Flash (portrayed by Tom Cavanagh) - An enemy of Flash who impersonates Harrison Wells.
• Jefferson "Jax" Jackson / Firestorm (portrayed by Franz Drameh) - A former high school athlete, auto mechanic, and graduate student who succeeds Ronnie Raymond as one half of the hero known as Firestorm with Martin Stein. Drameh reprises his role from The Flash.
• Martin Stein / Firestorm (portrayed by Victor Garber) - A nuclear physicist focused on transmutation who is second half of the hero known as Firestorm with Jefferson Jackson. Garber reprises his role from The Flash.
• Joe Wilson (portrayed by Liam Hall) - The son of Slade Wilson and a former ASIS operative who is the leader of a Russian gang known as the Jackals which specializes in the collection of powerful weapons.
• Alex Danvers (portrayed by Chyler Leigh) - The adoptive sister of Kara Danvers and second-in-command of Department of Extranormal Operations. Leigh reprises her role from Supergirl.
• Iris West (portrayed by Candice Patton) - A member of the S.T.A.R. Labs team and the wife of Barry Allen. Patton reprises her role from The Flash.
• Mick Rory / Heat Wave (portrayed by Dominic Purcell) - An arsonist, career criminal, and accomplice of Leonard Snart who, in contrast to his partner, uses a heat gun capable of burning almost anything. Purcell reprises his role from The Flash.
• Athena (portrayed by Kyra Zagorsky) - A former member of the League of Assassins once associated with Malcolm Merlyn as his second-in command. She took the position as leader of the Thanatos Guild that was supposed to be led by Merlyn prior to his death.
• Alexa Van Owen (portrayed by Catherine Dent) - An outside counsel-turned-district attorney who once convicted the organization Intergang. She prosecutes Oliver Queen at his trial where Christopher Chance posing as Judge McGarvey during the verdict had heard the guilty verdict and told Oliver to seek probation before he is free to go.

Introduced in season seven

• Grim Reaper (portrayed by John DeSantis) - A tough inmate at Slabside Maximum Security Prison
• Stanley (portrayed by Brendan Fletcher) - A man incarcerated at Slabside Maximum Security Prison for a murder he did not commit.
• Longbow Hunters - A group of assassins who are so dangerous that the League of Assassins even feared them. They allied with Ricardo Diaz and assist in his revenge on Oliver Queen and his allies after crippling his criminal empire.
  • Kodiak (portrayed by Michael Jonsson) - A member of the Longbow Hunters.
  • Red Dart (portrayed by Holly Elissa Dignard) - A member of the Longbow Hunters.
  • Honor Guest / Silencer (portrayed by Miranda Edwards) - A member of the Longbow Hunters. She later gets captured by Wild Dog during a raid on a CDC facility. Thanks to a trick by Smoak, Silencer was released where she secretly has a tracker on her so that Smoak and Black Siren could find Ricardo Diaz.
• Jarrett Parker (portrayed by Jason E. Kelly) - The chief psychiatrist at Slabside Maximum Security Prison who uses a special brain machine and a truth serum when doing his therapy on the inmates of the prison's Level 2.

Other characters

The following is a supplementary list of characters who have a minor role in the series due to their actors being credited in the guest bill in the end credits. The characters are listed, in alphabetical order by actor, by the season in which they first appeared.

Introduced in season one

Billy Wintergreen

Billy Wintergreen (portrayed by Jeffrey Robinson) is Slade Wilson's partner in the ASIS, who betrays him and joins Fyers. He is later killed by Slade.

Introduced in season four

Paul Holt

Paul Holt (portrayed by Chenier Hundal) is the husband of Curtis Holt until their divorce in the fifth season, and Felicity Smoak's physiotherapist.

William Clayton

William Clayton (portrayed by Jack Moore as a teenager, Ben Lewis as an adult) is Oliver's son. Oliver finds out about William in mid-season four. William then learns of his relation to Oliver and discovers his father's secrets at the end of season five. In season six, William is now living with Oliver after being kidnapped and his mother Samantha is killed by Adrian Chase/Prometheus. His faith in superheroes is shattered after Oliver's failure of saving his mother from Prometheus, but comes to recognize that, despite their abilities, they can only try their best to protect people. Oliver now acknowledged William publicly and therefore his part of the Queen family without causing scandals to his family and career. Despite William initially struggles to accept Oliver, he eventually bonds with him and William's own bravery and caring for others in dangerous situations prove that he is no different from his father in heroic. He has not yet taking Oliver's surname despite the revelation of his lineage. Though remains grieving over his mother, William sees Felicity as a surrogate mother after he admires her intellect and accepts her as his stepmother after she marries his father. She also inspires William into the fields of engineering and technology. When Oliver turns himself in to the F.B.I. for the city and his family's sakes, William is devastated by his father's imprisonment and under the custody of his stepmother. In season seven' premiere after Ricado Diaz's attack on Felicity, William relocates to Cambridge, Massachusetts. In a series of flash-forwards, a wealthy young adult William seeks out an older Roy Harper on Lian Yu and shows him the hōzen once belonged to his father as proof of him being Oliver Queen's son. It is also revealed that, in the future, William would become a scientist and he is gay or bisexual (a nod to Lewis's real-life sexuality). He has a complicated adulthood owing to his sexual orientation and being a member of the Queen family and as Green Arrow's son. The two of them find a box underground where a spare of Green Arrow's bow and arrows are found. Afterwards, the two of them plan to return to Star City.

Introduced in season five

Gideon

Gideon (voiced by Amy Pemberton) is the on-board navigational assistant of the Waverider. Pemberton stars as the character on Legends of Tomorrow.

C. McGarvey

C. McGarvey (portrayed by Gaalen Engen) is a corrupt judge in Star City. When it came to the trial of Oliver Queen, he got knocked out by John Diggle and Rene Ramirez so that Christopher Chance can pose as him in order to get Oliver Queen to seek probation before being free to go. When Ricardo Diaz had C. McGarvey brought to him over what happened at the trial, he tries to explain what really happened only for an angry Diaz to shoot him dead.

See also

• List of The Flash characters
• List of Legends of Tomorrow characters
• List of Supergirl characters
• List of Arrowverse cast members