Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Jenna Marbles

YouTube Sensation

Lauren Cohan

Actress; Best Known as Maggie Greene on "The Walking Dead"

Thomas Middleditch

Actor, Voice Actor, Comedian, Screenwriter Known for "Silicon Valley"

Jason Collins

First Openly Gay Player In Major League Sports; Retired NBA Player; Equality Advocate

Max Greenfield

Actor Known For "New Girl" & Children's Author

Mario Lopez

Actor & Entertainment Journalist

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Carol Leifer

Award-Winning Writer, Author, Actress & Standup Comedian

Lance Gross

Actor, Model & Photographer; Best Known for "House of Payne"

Sherry Lansing

Former CEO of Paramount Pictures & Founder of The Sherry Lansing Foundation

Josh Peck

Actor & Social Media Influencer

Sophia Bush

Actress, Humanitarian & Author

Sophia Amoruso

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

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

Dolvett Quince

Fitness Guru & Trainer from "The Biggest Loser"

Dennis Prager

Host of the Dennis Prager Radio Show, Co-Founder of Prager University, NY Times Bestselling Author & Columnist

Tavis Smiley

Broadcaster, Author, Publisher, Advocate, and Philanthropist

Shiza Shahid

Entrepreneur, Technologist, Investor, Impact Leader & Co-Founder of the Malala Fund and Our Place

Peter Guber

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