Guest
Dan Savage
Host
Neil deGrasse Tyson
Helen Fisher
Guest
Chuck Nice
Guest
Biz Stone
Guest
Jimmy Carter
Guest
Richard Dawkins
Guest
Arianna Huffington
Guest
Chris Hadfield
Guest
Charles Bolden
Guest
Norman Lear
Self
George Takei
Guest
Helen Fisher
Self
Christopher Nolan
Self
Bill Clinton
Self
Larry Wilmore
Self
Seth MacFarlane
Self
Penn Jillette
Self
Teller
Self
Susan Sarandon
Self
David Byrne
Self
Bas Lansdorp
Self
David Crosby
Self
Brian Cox