Cosmos

Neil deGrasse Tyson

Self - Host

Ann Druyan

Carl Sagan

Self (archive footage)

Seth MacFarlane

(voice)

Sasha Sagan

Rachel Molly Gruber

Stoney Emshwiller

Guard (voice)

André Sogliuzzo

Christopher Wren (voice)

Christopher Emerson

Piotr Michael

Edmund Muskie (voice)

Enn Reitel

Henry Norris Russell (voice)

Keythe Farley

(voice)

Patrick Stewart

William Herschel (voice)

Elizardo Torrez

Young Carl Sagan

Trang Vo

Birthmark Woman

John Steven Rocha

Bellaramine (voice)

Paul Telfer

Angry Scholar #2 (voice)

Jonathan Morgan Heit

John Herschel (voice)

Cary Elwes

Edmond Halley / Robert Hooke (voice)

Tom Konkle

Samuel Pepys (voice)

Alexander Siddig

Isaac Newton (voice)

Alfred Molina

Ibn al-Haytham (voice)

Richard Gere

Clair Patterson (voice)

Marc Worden

Harrison Brown (voice)

Kirsten Dunst

Cecilia Payne (voice)

Marlee Matlin

Annie Jump Cannon (voice)

Peggy Jo Jacobs

Margaret Harwood (voice)

Amanda Seyfried

Marie Tharp (voice)

Christiane Amanpour

Enheduanna (voice)

Michael Chochol

Jan Oort

Oliver Vaquer

Joseph von Fraunhofer (voice)

Fred Tatasciore

Democritus (voice)

Larry Cedar

Nick Jameson

Michael McConnohie

Masasa Moyo

👤

Maria Frucci

Martin Jarvis

Humphry Davy (voice)

Noah Langford

(voice)

Fay Masterson

(voice)

Heiko Obermöller

Einstein's Father (voice)

Julian Ovenden

Michael Faraday (voice)

👤

Jack Rainsford

(voice)

Glenn Steinbaum

Bruce Heezen (voice)

William Salyers

(voice)

Paul Sorvino

Augustin Mouchot (voice)

Eliza Schneider

(voice)

Frank Baxter

Self (archive footage)

John F. Kennedy

Self (voice) (archive footage)

👤

Masoumeh Husseini

Monk (voice)

Harssh A. Singh

Ashoka (voice)