Characters played by Neil deGrasse Tyson
Self - Host
Characters played by Seth MacFarlane
President Harry S. Truman
Sherwood Rowland
Characters played by Trang Vo
Birthmark Child
Birthmark Teen
Birthmark Woman
Characters played by Sasha Sagan
Rachel Molly Gruber
Characters played by Elizardo Torrez
Young Carl Sagan
Characters played by Shereen Balles
Female Voyager
Characters played by Patrick Stewart
William Herschel
Characters played by Viggo Mortensen
Nikolai Vavilov
Characters played by Adam Tsekhman
Christiaan Huygens
Characters played by Marcelo Tubert
[no data]
Characters played by Ernie Vigil
Thomas Young
Characters played by Steve Oatway
Charles Darwin
Characters played by Masoumeh Husseini
Monk
Characters played by Judd Hirsch
Robert Oppenheimer
Characters played by Mara Junot
Governess
Characters played by Neil Arnote
Neil Armstrong
Characters played by Harsh Singh
Ashoka
Characters played by Nick Sagan
[no data]
Characters played by Joseph Grange
John Herschel
Characters played by Olivia d'Abo
Marie Curie
Characters played by Rick Pasqualone
Mosso's Ghost
Characters played by Ken Lally
[no data]
Characters played by Jamie Hanes
[no data]
Characters played by Carol Bach Rita
Caroline Herschel
Characters played by Clinnette Minnis
[no data]
Characters played by Phil Crowley
[no data]
Characters played by Will Greenburg
John Goodricke
Characters played by Elijah Braik
[no data]
Characters played by Yuri Lowenthal
[no data]
Characters played by Novi Brown
[no data]
Characters played by Kap Teo-Tafiti
[no data]
Characters played by Dex de Groot
[no data]
Characters played by Edita Brychta
[no data]
Characters played by Joep Fellinger
[no data]
Characters played by Christopher Lee Parson
[no data]
Characters played by Andrew Pifko
[no data]
Characters played by Brendan Bradley
[no data]
Characters played by Matthew Jayson Cwern
Alexander Stchukin
Characters played by Alan Shearman
[no data]
Characters played by Natasha Goubskaya
[no data]
Characters played by Skye Sammoutis
[no data]
Characters played by Hélène Cardona
[no data]
Characters played by J. Nathan Simmons
Refugee
Characters played by Peter Brown
World Fair Man