Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Bobby Flay

Chef & Host of "Throwdown With Bobby Flay" and "America's Next Great Restaurant"

Brad Stine

Clean & Conservative Comedian Dubbed "God's Comic" By The New Yorker

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

Daryl Hannah

Actress, Best Known for "Kill Bill" & "Splash"; Environmental Activist

Deepak Chopra

Co-Founder of The Chopra Center for Wellbeing

Diane Sawyer

Anchor, ABC World News

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

Ivanka Trump

Executive Vice President of Acquisitions & Development, Trump Organization; Founder, Ivanka Trump Collection

James Dashner

Author of Many Children's Fantasy Series and Adult Books, Including "The Maze Runner" Series

Jillian Michaels

Leading Fitness Expert, Certified Nutritionist, Renowned Life Coach & Powerful Entrepreneur

Jodie Sweetin

Entrepreneur, Actress, Producer & Author

John Bohannon and Black Label Movement

Science writer + Dance troupe + Cellists

John Cho

Actor Known for "Harold & Kumar" Series & "Star Trek" Reboot Series

John Pullum

Mentalist, Comedian, & TV Host

John Stossel

Emmy-Award Winning Journalist

John Wood

Founder & Board Co-Chair of Room to Read; Former Microsoft Marketing Executive

Judge Greg Mathis

Civil Rights Activist, Television Personality

Kevin Powell

Writer, Humanitarian, President of BK Nation

Linda Armstrong Kelly

Single Mother of Lance Armstrong; Philanthropist & Advocate for Children

Lisa Oz

Best-Selling Author, Producer, Host & Entrepreneur

Marlee Matlin

Academy Award Winning Actress; Healthcare Advocate & Disability Rights Activist Fighting for Better Access for the Deaf

Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

Michael J. Fox

Actor, Author and Advocate; Founder, The Michael J. Fox Foundation for Parkinson’s Research

Michael J. Fox on latest Parkinson's research and how he's ...

Morton Kondracke

Political Commentator & Columnist

Nina Dobrev

Canadian Actress & Model; Best Known for "The Vampire Diaries" and "Degrassi"

Olivia Munn

Television & Film Actress; Known for "Newsroom" & "X-Men: Apocalypse"

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

Peter Salgo

Healthcare Futurist, Emmy Award-Winning Health & Science Correspondent & Author of "The Heart of the Matter"

Rainn Wilson

Actor Known for "The Office" & Creator of SoulPancake

Soul Boom: Why We Need a Spiritual Revolution

Robert Ballard

Renowned Ocean Explorer & Scientist