Gabrielle Union

Actress, Voice Artist, Activist, Author & Investor

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 ...

Nick Vujicic

Motivational Speaker, NY Times Best-Selling Author, Founder & CEO of Life Without Limbs

Phylicia Rashad

Actress, Dean of Fine Arts at Howard University, Advocate for Children, Women's Issues & Fine Arts

Rosie Perez

Actress, Choreographer, Activist & Former Co-Host of "The View"

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

Maureen McCormick

Actress & Author Best Known for "The Brady Bunch"

Jason Alexander

Actor, Writer & Director; Best Known for His Work on "Seinfeld"

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 ...

Susan Sarandon

Academy-Winning Actress & Activist

Rosie O'Donnell

Comedian, Actress, Author & Television Personality

Amandla Stenberg

Actor, Singer & Activist Known for "The Hate U Give," "The Hunger Games" & "Everything, Everything"

Deepak Chopra

Co-Founder of The Chopra Center for Wellbeing

Robert Cialdini

New York Times Best-Selling Author; The Foundational Expert in the Science of Influence & Persuasion

Jessica Alba

Actress; Entrepreneur; Founder & CEO of The Honest Company

Hoda Kotb

Award-Winning Broadcast Journalist, Television Personality, Author & Co-Anchor of NBC News' TODAY

Ken Dychtwald

Founder & CEO of Age Wave; Gerontologist & Expert on Aging-Related Issues

Billie Jean King

Former World #1 Professional Tennis Player & Sports Icon; Advocate for Women's Equality

Bill Maher

Political Satirist & Host of HBO's "Real Time"

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York