Mayim Bialik

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

Amandla Stenberg

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

Jonathan Van Ness

Hair & Beauty Expert, Author, Television Personality; Known for Netflix's "Queer Eye"

Bethenny Frankel

Entrepreneur, Reality TV Star & Bestselling Author; Founder of Skinnygirl & BStrong Disaster Relief

Anderson Cooper

Journalist, TV Personality, Anchor of CNN's "Anderson Cooper 360°"

Demi Lovato

Grammy Nominated Singer-Songwriter, Musician, Philanthropist & Mental Health Advocate

Jessica Alba

Actress; Entrepreneur; Founder & CEO of The Honest Company

Yvonne Orji

Actress, Comedian & Writer Known for HBO's "Insecure"

Cynthia Nixon

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

Mark Ruffalo

Actor, Director, Producer, Screenwriter & Environmental Activist

Shaun White

Retired Professional Snowboarder & Skateboarder, Olympic Gold Medalist & Musician

Brooke Shields

Actress; Model; Women's Health, Aging & Mental Wellness Advocate

Tyra Banks

Host & Executive Producer, "Dancing With the Stars"; Model, TV Personality, Host of "America's Next Top Model"

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 ...

Sarah Silverman

Stand-Up Comedian, Actress, Singer, Producer & Writer

Jon Stewart

Talk Show Host, Comedian & Producer

Jon Stewart will return to ‘The Daily Show’ as host — just on Mondays

Iliza Shlesinger

Comedian & Winner of NBC's "Last Comic Standing"

Iliza Shlesinger - "Hot Forever" Official Trailer | Netflix

Lizzo

Alternative Hip-Hop Artist Known for Her Body Positive Message & Chart-Topping Singles "Truth Hurts," "Juice" & "About Damn Time"

Jason Alexander

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

Nick Jonas

Multi-Platinum & Grammy Nominated Recording Artist, Actor, Award-Winning Songwriter, Member of the Jonas Brothers & Diabetes Advocate