Kosmos (2014)

Neil deGrasse Tyson

Self - Host

Carl Sagan

Self (archive footage) / Self (voice) (archive footage)

Seth MacFarlane

(voice) / Giordano Bruno (voice) / President Harry S. Truman (voice) / Sherwood Rowland (voice)

Sasha Sagan

Rachel Molly Gruber

Patrick Stewart

William Herschel (voice)

Elizardo Torrez

Young Carl Sagan

Trang Vo

(voice) / Birthmark Woman

Piotr Michael

Edmund Muskie (voice) / Lab Assistant (voice)

André Sogliuzzo

Christopher Wren (voice) / Weichelberger (voice)

Isa Magomedov

Father

Masoumeh Husseini

Monk (voice)

Harssh A. Singh

Ashoka (voice)

Shereen Balles

Female Voyager (voice)

Kapeneta Te'o-Tafiti

Male Voyager (voice)

Joseph Grange

John Herschel (voice)

Carol Bach Rita

Caroline Herschel (voice)

Viggo Mortensen

Nikolai Vavilov (voice)

Ken Lally

(voice)

Phil Crowley

(voice)

Yuri Lowenthal

(voice)

Edita Brychta

(voice)

Christopher Lee Parson

(voice)

Andrew Pifko

(voice)

Brendan Bradley

(voice)

Matthew Jayson Cwern

(voice)

Alan Shearman

(voice)

Natasha Goubskaya

(voice)

Skye Sammoutis

(voice)

Marcelo Tubert

(voice)

Mara Junot

(voice)

Rick Pasqualone

(voice)

Elijah Braik

(voice)

Novi Brown

(voice)

Will Greenburg

John Goodricke

Steve Oatway

Charles Darwin

Adam Tsekhman

Christiaan Huygens

Neil Arnote

Neil Armstrong

Ernie Vigil

Thomas Young

Judd Hirsch

Robert Oppenheimer (voice)

Olivia d'Abo

Marie Curie (voice)

Yurika Okamura

(voice)

Selyna Chan

(voice)

Sianna Chan

(voice)

Joseph J. Micucci

Young Father

Lennard Ortmann

Albert Einstein

Alex Bartram

Samuel Sagan

Brannon Braga

World's Fair Attendee

Marcello Guedes

Young Neil deGrasse Tyson

Leandro Guedes

Young Stephen Joseph Tyson

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)

Stoney Emshwiller

Guard (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)

Christopher Emerson

Acolyte (voice)

Fred Tatasciore

Democritus (voice)

Enn Reitel

Henry Norris Russell (voice)

Keythe Farley

(voice)

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)