As (himself)
2025
As Carl Sagan (voice) (archive sound) (uncredited)
2024
As Self
As Self (archive footage)
2023
2018
As Voice
2014
2012
As Carl Sagan
1997
1996
As Guest
1989
1988
As Self - Moderator
1987
1984
1980
1977
As Himself
1975
1973
As Narrator
1969
Writer
2015
Novel
Original Story
Thanks
2006
Scientific Consultant
1985
Co-Producer
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