Peter Diamandis

Founder & Executive Chairman of the XPRIZE Foundation; Author; Named One of The World's 50 Greatest Leaders

Van Jones

CEO of REFORM Alliance, CNN host, Emmy Award-winning Producer & NY Times Best-Selling Author

America Ferrera

Award-Winning Actress, Producer & Humanitarian

Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author

Kathryn Bigelow

First Woman to Win an Academy Award for Best Director; Known for "Zero Dark Thirty" & "The Hurt Locker"

Lisa Ling

Award-Winning Journalist & Producer for CBS News

Antwone Fisher

Child Advocate, Bestselling Author, Screenwriter & Lecturer

Ben Stein

Political Economist, Commentator, Author & Actor

David Agus

Co-Founder of Navigenics, Author of "The End of Illness" & Host of "The Checkup with Dr. David Agus"; Professor of Medicine & Engineering at the University of Southern California

The Book of Animal Secrets

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Peter Guber

Executive, Entrepreneur & NYT Bestselling Author; Operating Owner of the 3-Time NBA Champion Golden State Warriors

Geena Davis

Award-Winning Actress, Gender Equality Activist & Philanthropist

Sophia Amoruso

International Public Speaker, Founder & CEO of Nasty Gal, Author of "#GIRLBOSS"

I Was A Stripper! A Shoplifter! Then Built A $400m Business!

LeVar Burton

Literacy Advocate & Actor Known for "Roots," "Star Trek" & "Reading Rainbow"

Viola Davis

Academy Award-Winning Actress, Producer & New York Times Best-Selling Author

Viola Davis on Speaking Up, Challenging Stereotypes

DeVon Franklin

Award-Winning Producer, New York Times Bestselling Author & Motivational Speaker

Bill Hader

Actor, Comedian, Writer, & Director; Known for "Saturday Night Live" & "Barry"

Seth Meyers & Bill Hader's Favorite SNL Memories & Barry Finale

Diana Nyad

World Champion Swimmer, Storyteller, Sports Journalist & Broadcaster

Josh Altman

Successful Real Estate Agent & Star of Bravo's "Million Dollar Listing"

Retta

Stand-Up Comedian & Actress Known for "Parks and Recreation"