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

Erin Brockovich

Consumer Advocate, Author, TV Host & Environmental Activist

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

Greg Louganis

4x Olympic Gold Medal Diver; LGBTQ Activist & Author

Derek Hough

Dancer, NYT Bestselling Author, Emmy Award Winner for Outstanding Choreography & Six-Time Champion of ABC's "Dancing with the Stars"

Sherry Lansing

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

Diana Nyad

World Champion Swimmer, Storyteller, Sports Journalist & Broadcaster

Mira Sorvino

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

Mark Ballas

Dancing with the Stars Champion & Mental Health Activist

Sean Astin

Actor, Director, Voice Artist & Producer Known For "Lord of the Rings"

Marcus Buckingham

Peak Performance Expert, Best-Selling Author, Researcher & Strengths Revolutionist

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"

Wil Wheaton

Actor, Author & Blogger; Known for "Star Trek: The Next Generation" & "The Big Bang Theory"

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Marilu Henner

Actress, Producer & NY Times Bestselling Author

Adam Beach

Award-Winning Canadian Actor

Jennie Garth

Television Actress & Advocate for the American Heart Association