Bill Rancic

"The Apprentice" Winner; Entrepreneur; Star of "Giuliana & Bill"

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

Laura Ling

Acclaimed Journalist Known for Being Detained in North Korea; Host of "E! Investigates;" Co-Author of "Somewhere Inside"

Ben Stein

Political Economist, Commentator, Author & Actor

Nev Schulman

Producer, Actor, Photographer & TV Host Known for MTV's "Catfish: The TV Show"

Montel Williams

Emmy Award-Winning Talk Show Host Best Known For "The Montel Williams Show", Multiple Sclerosis Activist

Montel Williams Talks About His Stroke, Life in the Military & More

John Legend

EGOT Winning Musician, Producer & Philantropist

Ashley Judd

Actress, Activist & Humanitarian

Ashley Judd: Women, we are in the fight of our lives

Spike Lee

Academy Award-Winning Writer, Producer, Actor & Director; Best Known for "BlacKkKlansman" & "Malcolm X"

Spike Lee to Receive American Cinematheque Award

Jimmy Wayne

Country Music Artist, NY Times Best Selling Author & Founder of Meet Me Halfway Campaign

Matt Roloff

Star of "Little People, Big World"

Carol Leifer

Award-Winning Writer, Author, Actress & Standup Comedian

Anna Deavere Smith

Award-Winning Actress, Playwright, Social Commentator

Anna Deavere Smith on developing emotional capacity as an artist ...

Ian Somerhalder

Actor Known for "The Vampire Diaries;" Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

David Pogue

Host of NOVA ScienceNow & Yahoo Tech Columnist

Daphne Oz

Nutrition Author, Former Co-Host of "The Chew"

Mark Ballas

Dancing with the Stars Champion & Mental Health Activist

Carla Hall

Celebrity Chef & Former Co-Host of "The Chew"

Andy Cohen

Host & Producer of Bravo’s "Watch What Happens: Live;" Former EVP of Development & Talent at Bravo

Naomi Judd

Grammy Winning Singer-Songwriter, New​ ​York​ ​Times​ ​Best-Selling​ Author & Activist

Tavis Smiley

Broadcaster, Author, Publisher, Advocate, and Philanthropist

Dr. Holly G. Atkinson

Award-Winning Medical Journalist

Terry Savage

Personal Finance Expert, Investment Advisor, Syndicated Columnist & Bestselling Author

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

John Ratzenberger talks about his Pixar voices from 'Toy Story,' 'The ...

Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

Blythe Danner

Emmy Award-Winning Actress & Activist

Patch Adams

Physician & Clown; Founder of Gesundheit Institute; Inspiration for the Robin William's Movie "Patch Adams"

Mario Lopez

Actor & Entertainment Journalist

Ed Rendell

Former Governor of Pennsylvania; NBC News Political Analyst & Author

Robert Reich

Economic Analyst, CNBC Contributor, Professor, Author, Advisor to Presidents & Former Secretary of Labor