Name	Known for
Erik Thompson Self - Narrator (voice) Self - Narrator (voice) See fewer	A Murder of Crows (1998)
Michio Kaku Self - Author, 'Physics of the Impossible' Self - Author, 'Physics of the Impossible' See fewer	Accidental Truth: UFO Revelations (2023)
Jonathan Clark Self - NASA Flight Surgeon, 1997-2005 Self - NASA Flight Surgeon, 1997-2005 See fewer	American Experience (1987)
Christopher Gilman Self - Global Effects, Inc Self - Global Effects, Inc See fewer	Bram Stoker's Dracula (1992)
Roger Launius Self - Space Historian Self - Space Historian See fewer	When We Left Earth: The NASA Missions (2008)
Eric Anderson Self - Pres. & CEO Space Adventures Self - Pres. & CEO Space Adventures See fewer	Su nombre era Dolores, la Jenn que yo conocí (2017)
Tom D. Jones Self - Author, 'Sky Walking' Self - Author, 'Sky Walking' See fewer	Toon in with Me (2021)
Stephen Whiting Self - Vandencerg AFB (as Col. Stephen Whiting) Self - Vandencerg AFB (as Col. Stephen Whiting) See fewer	The Universe (2007)
Jennifer A. Fuka Self - Vandenberg AFB (as Lt. Jennifer A. Fuka) Self - Vandenberg AFB (as Lt. Jennifer A. Fuka) See fewer	The Universe (2007)
William Ailor Self - The Aerospace Corp. Self - The Aerospace Corp. See fewer	The Universe (2007)
Robert Bigelow Self - Bigelow Aerospace Self - Bigelow Aerospace See fewer	Flying Objects: A State Secret (2020)
Eric Haakonstad Self - Bigelow Aerospace Self - Bigelow Aerospace See fewer	The Universe (2007)
John Glenn Self - Astronaut / U.S. Senator (archive footage) Self - Astronaut / U.S. Senator (archive footage) See fewer	Frasier (1993)
Dennis Tito Self - First Space Tourist to I.S.S. (archive footage) Self - First Space Tourist to I.S.S. (archive footage) See fewer	Late Show with David Letterman (1993)