Janelle Monáe Robinson
饰:Herself
Matt Brown
饰:Himself
饰:Himself
William Shatner
饰:Himself
饰:Herself - Author and Journalist
Teller
饰:Himself
Lance Armstrong
饰:Himself
Sean Lennon
饰:Himself
Simon Singh
饰:Himself
Michelle Gomez
饰:Herself
饰:Herself
饰:Himself - Writer
Whoopi Goldberg
饰:Herself
饰:Himself
James Martin
饰:Himself
Katy Perry
饰:Herself
Susan Sarandon
饰:Herself
Natalia Reagan
饰:Herself
Robert Kirkman
饰:Himself
liza Shlesinger
饰:Herself - Co-Host
Buzz Aldrin
饰:Himself
Michio Kaku
饰:Himself
Bill Prady
饰:Himself
Larry Wilmore
饰:Himself
Godfrey
饰:Himself - Co-Host
Jillette
饰:Himself
Jason Silva
饰:Himself
Jeremy Irons
饰:Himself
Steven Schlozman
饰:Himself
饰:Himself
Maeve Higgins
饰:Herself
Stephen Colbert
饰:Himself
Richard Dawkins
饰:Himself
James Cameron
饰:Himself
Jane Goodall
饰:Herself
饰:Himself
Seth McFarlane
饰:Himself
饰:Himself
饰:Himself - Professor of Bioethics, NYU
Brian Edward Cox
饰:Himself
Kareem Abdul-Jabbar
饰:Himself
Anthony Bourdain
饰:Himself
Andrew Revkin
饰:Himself
Jay Leno
饰:Himself
Kevin Smith
饰:Himself
饰:Herself
Dan Savage
饰:Himself
David Crosby
饰:Himself
Adam Conover
饰:Himself - Co-Host
饰:Herself
Brian Greene
饰:Himself
饰:Himself
Jimmy Carter
饰:Himself
饰:Himself
Michael Ian Black
饰:Himself - Co-Host
Biz Stone
饰:Himself
饰:Himself
George Takei
饰:Himself
Arianna Huffington
饰:Herself
饰:Herself - Journalist
Eugene Mirman
饰:Himself
Christopher Lloyd
饰:Himself
饰:Himself
饰:Herself
David Byrne
饰:Himself
Ben Stiller
饰:Himself
Philippe Petit
饰:Himself
Christopher Nolan
饰:Himself
饰:Himself - Singer
Bill Maher
饰:Himself
Adrian Grenier
饰:Himself - Co-Founder, Lonely Whale Foundation
饰:Himself
Herbie Hancock
饰:Himself
Isaac Hempstead-Wright
饰:Himself
Salman Rushdie
饰:Himself
饰:Herself - NASA Engineer
饰:Himself - NASA Engineer
Norman Lear
饰:Himself
Margot Lee Shetterly
饰:Herself - Author, Hidden Figures
Richard Muller
饰:Himself
Bill Nye
饰:Himself
饰:Himself
Alan Alda
饰:Himself
Neil deGrasse Tyson
Lawrence Krauss
饰:Himself - Theoretical Physicist
Terry Crews
饰:Himself
Katie Couric
饰:Herself
Leighann Lord
饰:Herself
Andy Weir
饰:Himself
Travis Langley
饰:Himself
Simon Maxwell Helberg
饰:Himself
饰:Herself
Christopher R. Hardwick
饰:Himself
饰:Herself
Kelly Slater
饰:Himself
饰:Himself
饰:Herself
饰:Herself
饰:Himself
饰:Himself
饰:Herself
饰:Herself
Scott Adsit
饰:Himself - Co-Host
Frank Oz
饰:Himself
Bill Clinton
饰:Himself
饰:Himself
饰:Various
Sasheer Zamata
饰:Herself - Co-Host
Stephen Hawking
饰:Himself - Cosmologist
饰:Himself
Sylvia Earle
饰:Herself
Andy Serkis
饰:Himself - Actor
Bill Nye
Natalia Reagan
Alan Jacobsen