Name	Known for
Paul Essiembre Self - Narrator (voice) Self - Narrator (voice) See fewer	Nobody (I) (2021)
Michio Kaku Self - Theoretical Physicist, City University of New York (as Dr. Michio Kaku) Self - Theoretical Physicist, City University of New York (as Dr. Michio Kaku) See fewer	Accidental Truth: UFO Revelations (2023)
Chris McKay Self - Astrobiologist, NASA Ames Research Center (as Dr. Chris McKay) Self - Astrobiologist, NASA Ames Research Center (as Dr. Chris McKay) See fewer	Doppelgängers³ (2024)
Sara Seager Self - Planetary Scientist, Massachusetts Institute of Technology (as Prof. Sara Seager) Self - Planetary Scientist, Massachusetts Institute of Technology (as Prof. Sara Seager) See fewer	Solis (2018)
Lee Cronin Self - Chemist, University of Glasgow (as Prof. Lee Cronin) Self - Chemist, University of Glasgow (as Prof. Lee Cronin) See fewer	Alien Encounters (2012)
Lewis Dartnell Self - Astrobiologist, University College, London (as Dr. Lewis Dartnell) Self - Astrobiologist, University College, London (as Dr. Lewis Dartnell) See fewer	Size Matters (2018)
Kevin Warwick Self - Cyberneticist, University of Reading (as Prof. Kevin Warwick) Self - Cyberneticist, University of Reading (as Prof. Kevin Warwick) See fewer	The Unbelieveable with Dan Aykroyd (2023)
Andrew Siemion Self - Astrophysicist, University of California, Berkeley (as Dr. Andrew Siemion) Self - Astrophysicist, University of California, Berkeley (as Dr. Andrew Siemion) See fewer	Horizon (I) (1964)
Dan Werthimer Self - SETI Chief Scientist, University of California, Berkeley (as Dr. Dan Werthimer) Self - SETI Chief Scientist, University of California, Berkeley (as Dr. Dan Werthimer) See fewer	The Marriage of a Scientist (2023)
Sriram Kosuri Self - Biological Engineer, Wyss Institute, Harvard University (as Dr. Sriram Kosuri) Self - Biological Engineer, Wyss Institute, Harvard University (as Dr. Sriram Kosuri) See fewer	Aliens: The Definitive Guide (2013)
Paul Davies Self - Physicist, Arizona State University (as Prof. Paul Davies) Self - Physicist, Arizona State University (as Prof. Paul Davies) See fewer	Alien Encounters (2012)
Douglas Vakoch Self - Director of Interstellar Message Composition, SETI Institute (as Dr. Doug Vakoch) Self - Director of Interstellar Message Composition, SETI Institute (as Dr. Doug Vakoch) See fewer	Rendezvous with the Future (2022)
Geoff Marcy Self - Astronomer, University of California, Berkeley (as Prof. Geoff Marcy) Self - Astronomer, University of California, Berkeley (as Prof. Geoff Marcy) See fewer	Extreme Universe (2010)
Jan Zalasiewicz Self - Paleobiologist, University of Leicester (as Dr. Jan Zalasiewicz) Self - Paleobiologist, University of Leicester (as Dr. Jan Zalasiewicz) See fewer	#Powerplant (2019)