Sheryl Lee Ralph

Actress, Broadway Singer & Producer; Known for "Abbott Elementary"

Marlo Thomas

Emmy Award-Winning Actress, Social Activist & Presidential Medal of Freedom Recipient

Susan Sarandon

Academy-Winning Actress & Activist

Jeffrey Tambor

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

John Stossel

Emmy-Award Winning Journalist

Jay Leno

Emmy Award-Winning TV Late Night Show Host, Stand-Up Comedian & Best-Selling Author

Ken Dychtwald

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

Alyssa Milano

Actress, Author, Philanthropist & Founder of Touch by Alyssa Milano; Known for "Charmed" and "Who's the Boss"

Aly Raisman

Olympic Gymnast, Gold Medalist, Captain of the "Fierce Five" & the "Final Five"

Bill Maher

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

Jane Lynch

Emmy Award-Winning Actress, Known for "Glee" and Hosting "Hollywood Game Night"

Greg Gutfeld

Political Satirist Known for "The Greg Gutfeld Show" & "The Five."

Keke Palmer

Actress & Youngest Talk Show Host in TV History

Ice-T

Rapper, Record Producer & Actor Known for "Law & Order: SVU"

Steve Young

Former NFL Quarterback & Two-Time NFL MVP; Founder of the Forever Young Foundation

Robert Cialdini

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

Nick Vujicic

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

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 ...

Lori Greiner

Self-Made Mogul, Inventor & Entrepreneur Who Has Created 500+ Products; Known for "Shark Tank"

Amy Schumer

Award-Winning Actress & Comedian; Author of "The Girl with the Lower Back Tattoo;" Feminist Advocate

Amy Schumer diagnosed with rare health disorder: ‘Something was wrong’