Hill Harper

Best-Selling Author, Tech Entrepreneur, Investor, Philanthropist & Actor; Best Known For "CSI: NY" & "The Good Doctor"

Bill Rancic

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

Daymond John

"Shark Tank" Investor; Founder & CEO of FUBU; Presidential Ambassador for Global Entrepreneurship

Van Jones

CEO of REFORM Alliance, CNN host, Emmy Award-winning Producer & NY Times Best-Selling Author

Asra Nomani

Journalist & Author, Women's Rights Activist

Giuliana Rancic

Entertainment Journalist & Breast Cancer Survivor

America Ferrera

Award-Winning Actress, Producer & Humanitarian

Joyce Maynard

Journalist & Best-Selling Author

What cancer taught me about the nature of love | Joyce Maynard | TEDx

Lisa Ling

Award-Winning Journalist & Producer for CBS News

Bill Nye

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

Dominique Dawes

Three-time Olympian, Olympic Gold Medalist, Healthy Lifestyle Advocate and Gymnastics Academy Owner

Laura Ling

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

Kari Byron

Former Host of Discovery Channel's "Mythbusters" & Author of "Crash Test Girl;" Director of the National STEM Festival

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; Multiple Sclerosis Survivor; Health Equity & Veteran Advocate

John Legend

EGOT Winning Musician, Producer & Philantropist

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Marissa Mayer

Co-Founder and CEO of Sunshine; Former President & CEO of Yahoo!

Sophia Bush

Actress, Humanitarian & Author