Name	Known for
Yannick Bisson Detective William Murdoch Detective William Murdoch See fewer	Murdoch Mysteries (2008)
Helene Joy Dr. Julia Ogden (as Hélène Joy) Dr. Julia Ogden (as Hélène Joy) See fewer	Murdoch Mysteries (2008)
Thomas Craig Inspector Thomas Brackenreid Inspector Thomas Brackenreid See fewer	Murdoch Mysteries (2008)
Jonny Harris Constable George Crabtree (credit only) Constable George Crabtree (credit only) See fewer	Still Standing (2015)
Lachlan Murdoch Constable Henry Higgins Constable Henry Higgins See fewer	Cheaters (2002)
Shanice Banton Violet Hart Violet Hart See fewer	Race (I) (2016)
Arwen Humphreys Margaret Brackenreid Margaret Brackenreid See fewer	Murdoch Mysteries (2008)
Peter Keleghan Terrence Meyers Terrence Meyers See fewer	Ginger Snaps (2000)
Matthew Bennett Allen Clegg Allen Clegg See fewer	Battlestar Galactica (2004)
John Tench Alexander Graham Bell Alexander Graham Bell See fewer	The Colony (I) (2013)
Brian Paul Prime Minister Wilfrid Laurier Prime Minister Wilfrid Laurier See fewer	Saw III (2006)
Jeffrey Wetsch Calvert Weston Calvert Weston See fewer	Mohawk Girls (2010)
Brendan McMurtry-Howlett Rupert Lamar Rupert Lamar See fewer	V/H/S/94 (2021)
Darryl Pring President Taft President Taft See fewer	The Boondock Saints II: All Saints Day (2009)
Jamillah Ross Ida Clark Ida Clark See fewer	Polar (I) (2019)
Joshua Graham Grant Taylor Grant Taylor See fewer	Go, Dog. Go! (2021)
Dylan Taylor Agent Felder Agent Felder See fewer	Charlie Bartlett (2007)
Ryan Sheedy Constable Evans Constable Evans See fewer	Thanksgiving (I) (2023)
Matthew Rogers Soldier of Columbia Soldier of Columbia See fewer	Murdoch Mysteries (2008)
Nicole Passmore Switchboard Operator Switchboard Operator See fewer	The Umbrella Academy (2019)
Paul Irving Constable Paul Harris Constable Paul Harris See fewer	National Memorial Day Concert (1989)