Dan Ariely

Behavioral Economist; Professor at Duke University; Author; Founding Member of The Center for Advanced Hindsight

Sugar Ray Leonard

Legendary Sports Icon, Olympic Champion and Hall of Famer, Philanthropist, Bestselling Author & Television Personality

Gretchen Rubin

New York Times Best-Selling Author of "The Happiness Project;" Host of Podcast "Happier with Gretchen Rubin"

Gretchen Rubin - Knowing Yourself: Why You're Happy and You ...

Joe Torre

Chief Baseball Officer for Major League Baseball; National Baseball Hall of Famer, 4-Time World Series Champion & 9-Time MLB All-Star

Diana Nyad

World Champion Swimmer, Storyteller, Sports Journalist & Broadcaster

Diana Nyad | The High-Performance Teamwork That Helped Her Make History

Marcus Luttrell

Decorated Navy SEAL & Bestselling Author of "Lone Survivor"

Jared Cohen

President, Jigsaw (previously Google Ideas) & Chief Advisor to Alphabet Executive Chairman (former Google CEO) Eric Schmidt

John Stossel

Emmy-Award Winning Journalist

Chris Sacca

Google & Twitter Innovation Guru

Judge Greg Mathis

Civil Rights Activist, Television Personality

Jodie Sweetin

Entrepreneur, Actress, Producer & Author

Andy Samberg

Actor, Comedian, Rapper & Writer; Known for "Saturday Night Live" & "Brooklyn Nine-Nine"

Jeffrey Tambor

Emmy Award-Winning Actor of "Arrested Development," "The Hangover" & "Transparent"

Russell Simmons

Entrepreneur & Philanthropist

Jonah Lehrer

Neuroscientist, New York Times bestselling author of "Imagine: How Creativity Works"

Jeff Orlowski-Yang

Award-winning Filmmaker, Photographer, Entrepreneur & Climate Change Activist

Dr. Jackie Walters

Award-Winning OB-GYN; Two-Time Breast Cancer Survivor; Cast Member of Bravo's "Married to Medicine"

Alex Newell

Grammy Award-Winning Actor & Singer Known for "Glee"

Deborah Norville

Two-Time Emmy Award-Winning Journalist; Anchor of "Inside Edition" & Best-Selling Author

Leymah Gbowee

Liberian Peace Activist, Social Worker & Women's Rights Advocate; 2011 Nobel Peace Laureate