character - Carl Sagan (archival audio)

character - Self

character - Self (Archive Footage)

character - Self (archive footage)

character - Voice

character - Himself (archive footage)

character - Self (voice) (archive footage)

character - Self (archive footage)

character - Self

character - Self (archive footage)

character - Self

character - Guest

character - Self

character - Self - Moderator

character - Self - Host

character - Self

character - Self

character - Self - Cosmos (archive footage)

character - Himself

character - Himself

character - Narrator

character - Self

character - Self

character - Self

character - Himself