Cosmos Season 1 Characters & Cast — No Spoilers
Every character in Cosmos season 1 with photos and the actors who play them, including Neil deGrasse Tyson, Ann Druyan, Carl Sagan — spoiler-free, nothing from later seasons.
- Self - Host — played by Neil deGrasse Tyson
- — — played by Ann Druyan
- Self (archive footage) — played by Carl Sagan
- Guard (voice) — played by Stoney Emshwiller
- Weichelberger (voice) / Christopher Wren (voice) — played by André Sogliuzzo
- Acolyte (voice) — played by Christopher Emerson
- Edmund Muskie (voice) / Lab Assistant (voice) — played by Piotr Michael
- Henry Norris Russell (voice) — played by Enn Reitel
- (voice) — played by Keythe Farley
- Giordano Bruno (voice) — played by Seth MacFarlane
- Bellaramine (voice) — played by John Steven Rocha
- Angry Scholar #2 (voice) — played by Paul Telfer
- John Herschel (voice) — played by Jonathan Morgan Heit
- Edmond Halley / Robert Hooke (voice) — played by Cary Elwes
- Samuel Pepys (voice) — played by Tom Konkle
- Isaac Newton (voice) — played by Alexander Siddig
- Ibn al-Haytham (voice) — played by Alfred Molina
- Clair Patterson (voice) — played by Richard Gere
- Harrison Brown (voice) — played by Marc Worden
- Cecilia Payne (voice) — played by Kirsten Dunst
All seasons of Cosmos: full spoiler-free character guide