Нил Деграсс Тайсон

Self - Host

Ann Druyan

Карл Саган

Self (voice) (archive footage), Self (archive footage)

Сет МакФарлейн

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

Sasha Sagan

Rachel Molly Gruber

Stoney Emshwiller

Guard (voice)

Андре Соглиуззо

Christopher Wren (voice), Weichelberger (voice)

Christopher Emerson

Acolyte (voice)

Пётр Михаэль

Edmund Muskie (voice), Lab Assistant (voice)

Енн Рейтел

Henry Norris Russell (voice)

Keythe Farley

(voice)

Патрик Стюарт

William Herschel (voice)

Elizardo Torrez

Young Carl Sagan

Trang Vo

Birthmark Woman, (voice)

John Steven Rocha

Bellaramine (voice)

Paul Telfer

Angry Scholar #2 (voice)

Jonathan Morgan Heit

John Herschel (voice)

Кэри Элвис

Edmond Halley / Robert Hooke (voice)

Tom Konkle

Samuel Pepys (voice)

Александр Сиддиг

Isaac Newton (voice)

Альфред Молина

Ibn al-Haytham (voice)

Ричард Гир

Clair Patterson (voice)

Marc Worden

Harrison Brown (voice)

Кирстен Данст

Cecilia Payne (voice)

Марли Мэтлин

Annie Jump Cannon (voice)

Peggy Jo Jacobs

Margaret Harwood (voice)

Аманда Сайфред

Marie Tharp (voice)

Кристиан Аманпур

Enheduanna (voice)

Майкл Хохол

Jan Oort

Oliver Vaquer

Joseph von Fraunhofer (voice)

Фред Таташор

Democritus (voice)

Larry Cedar

Nick Jameson

Michael McConnohie

Masasa Moyo

Maria Frucci

Martin Jarvis

Humphry Davy (voice)

Noah Langford

(voice)

Фэй Мастерсон

(voice)

Heiko Obermöller

Einstein's Father (voice)

Джулиан Овенден

Michael Faraday (voice)

Jack Rainsford

(voice)

Glenn Steinbaum

Bruce Heezen (voice)

Уильям Салиерс

(voice)

Paul Sorvino

Augustin Mouchot (voice)

Eliza Schneider

(voice)

Frank Baxter

Self (archive footage)

Джон Фицджералд Кеннеди

Self (voice) (archive footage)

Masoumeh Husseini

Monk (voice)

Harssh A. Singh

Ashoka (voice)

Nick Sagan

Clinnette Minnis

Shereen Balles

Female Voyager (voice)

Kapeneta Te'o-Tafiti

Male Voyager (voice)

Joseph Grange

John Herschel (voice)

Carol Bach Rita

Caroline Herschel (voice)

Вигго Мортенсен

Nikolai Vavilov (voice)

Ken Lally

(voice)

Phil Crowley

(voice)

Юрий Ловенталь

(voice)

Edita Brychta

(voice)

Christopher Lee Parson

(voice)

Andrew Pifko

(voice)

Брендан Брэдли

(voice)

Matthew Jayson Cwern

(voice)

Alan Shearman

(voice)

Natasha Goubskaya

(voice)

Skye Sammoutis

(voice)

Марсело Туберт

(voice)

Мара Жуно

(voice)

Рик Паскуалоне

(voice)

Элайджа Браик

(voice)

Novi Brown

(voice)

Jamie Hanes

Уилл Гринберг

John Goodricke

Dex de Groot

Joep Fellinger

Steve Oatway

Charles Darwin

Adam Tsekhman

Christiaan Huygens

Нил Арноут

Neil Armstrong

Ernie Vigil

Thomas Young

Джадд Хирш

Robert Oppenheimer (voice)

Оливия Д'Або

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