Name	Known for
Samuel West Self - Narrator (voice) Self - Narrator (voice) See fewer	Van Helsing (2004)
Chris Burrows Self - European Space Agency (as Dr. Christopher Burrows) Self - European Space Agency (as Dr. Christopher Burrows) See fewer	Horizon (I) (1964)
Terry Facey Self Self See fewer	Horizon (I) (1964)
Wendy Freeman Self (as Dr. Wendy Freeman) Self (as Dr. Wendy Freeman) See fewer	Horizon (I) (1964)
Jeff Hester Self (as Dr. Jeff Hester) Self (as Dr. Jeff Hester) See fewer	Dinosaur Extinction: Behind the Asteroid Impact Theory (2016)
Duccio Macchetto Self - Space Telescope Science Institute (as Dr. Duccio Macchetto) Self - Space Telescope Science Institute (as Dr. Duccio Macchetto) See fewer	Horizon (I) (1964)
Lou Montagnino Self Self See fewer	Horizon (I) (1964)
Story Musgrave Self - Astronaut Self - Astronaut See fewer	Mission to Mars (2000)
Charles Pellerin Self - NASA Director of Astrophysics 1982-1992 (as Dr. Charles Pellerin) Self - NASA Director of Astrophysics 1982-1992 (as Dr. Charles Pellerin) See fewer	Horizon (I) (1964)
Bud Rigby Self Self See fewer	Horizon (I) (1964)
John Trauger Self - NASA Jet Propulsion Laboratory (as Dr. John Trauger) Self - NASA Jet Propulsion Laboratory (as Dr. John Trauger) See fewer	Horizon (I) (1964)
Ed Weiler Self - Head of Space Science, NASA (as Dr. Ed Weiler) Self - Head of Space Science, NASA (as Dr. Ed Weiler) See fewer	Horizon (I) (1964)