John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Vince Papale

Former NFL Player & Inspiration for the Movie "Invincible"

Jim Palmer

Former Pitcher for the Baltimore Orioles & National Baseball Hall of Famer; 3-Time World Series Champion & 6-Time MLB All-Star

Rita Moreno

Award-Winning Actress, Dancer, Singer; Health Advocate & New York Times Bestselling Author

Shannon Miller

Olympic Gold Medalist, Health Advocate & Cancer Survivor

Connie Merritt

Relationship, Healthcare & Communication Expert

Kyle Maynard

Inspirational Athlete, Author, Entrepreneur & Two-time ESPY Award Winner

Joan Lunden

Award-Winning Journalist, Best-Selling Author, Health & Wellness Advocate

Geralyn Lucas

Breast Cancer Survivor & Author of "Why I Wore Lipstick: To My Mastectomy"

Greg Louganis

4x Olympic Gold Medal Diver; LGBTQ Activist & Author

Lisa Ling

Award-Winning Journalist & Producer for CBS News

Steven Levitt

Economist, NY Times Bestselling Author of "Freakonomics," "SuperFreakonomics" & "Think Like a Freak"

Lisa Leslie

WNBA Champion, Olympic Gold Medalist & Author of "Don't Let the Lipstick Fool You;" Coach of Ice-Cube's BIG3 Basketball League

Ray Kurzweil

Chairman of Kurzweil Technologies, Inventor & Futurist; Author of "How to Create a Mind"

Daniel Kraft, M.D.

Physician-Scientist; Founder of Exponential Medicine; Chair for Medicine & Neuroscience at Singularity University

Katty Kay

Award-Winning Journalist & Anchor; Best-Selling Author

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Ashley Judd

Actress, Activist & Humanitarian

Debbie Allen

Creative Marketing Expert & Business Speaker

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