Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author

Lisa Ling

Award-Winning Journalist & Producer for CBS News

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

Sophia Amoruso

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

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

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

Josh Altman

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

Retta

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

Earvin “Magic” Johnson

Basketball Hall of Famer, Entrepreneur, Philanthropist & Motivational Speaker

Jim Abbott

Former One-Handed Major League Baseball Pitcher

Bob Goff

Founder of Love Does; New York Times Bestselling Author

Gabby Douglas

First African-American to Win Olympic Gold Medal for Gymnastics; Author of New York Times Bestseller "Grace, Gold & Glory: My Leap of Faith"

Mitt Romney

Former Governor of Massachusetts, 2012 Republican Presidential Nominee and CEO

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Teddy Zee

Film Producer

Dolvett Quince

Fitness Guru & Trainer from "The Biggest Loser"