Shiza Shahid

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

Dolvett Quince

Fitness Guru & Trainer from "The Biggest Loser"

Tony Horton

Fitness Expert & Founder of Fitness Program P90X

Crush It!: The Revolutionary Fitness Plan for All Levels That Burns Fat, Builds Muscle,...

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Greg Louganis

4x Olympic Gold Medal Diver; LGBTQ Activist & Author

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

Carol Leifer

Award-Winning Writer, Author, Actress & Standup Comedian

Tavis Smiley

Broadcaster, Author, Publisher, Advocate, and Philanthropist

Sherry Lansing

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

Dr. Lisa Masterson

OB/GYN, Mom, Philanthropist & Author; Known as Co-Host of "The Doctors"

Sophia Bush

Actress, Humanitarian & Author

Kal Penn

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

Henry Winkler

Actor, Producer, Director & Best-Selling Author; Best Known for "Happy Days"

George Takei

Actor, Social Justice Activist & Social Media Mega-Power

Lisa Ling

Award-Winning Journalist & Producer for CBS News

Ben Stein

Political Economist, Commentator, Author & Actor

Mira Sorvino

Academy Award-Winning Actress & United Nations Goodwill Ambassador on Human Trafficking

Nia Long

NAACP Image Award-Winning Television & Film Actress, Philanthropist

Davis Guggenheim

Academy Award-Winning Director & Producer Known for "He Named Me Malala," "An Inconvenient Truth," "Waiting for Superman" & "Still: A Michael J. Fox Movie"