Gabby Douglas

First African-American to Win Olympic Gold Medal for Gymnastics; Author of New York Times Bestseller "Grace, Gold & Glory: My Leap of Faith"

Nancy Snyderman, MD

Retired Surgeon & Award-Winning Medical Journalist

Tavis Smiley

Broadcaster, Author, Publisher, Advocate, and Philanthropist

Richard Blais

Chef, Culinary Designer & Winner of Bravo's "Top Chef All Stars"

Max Greenfield

Actor Known For "New Girl" & Children's Author

Iyanla Vanzant

New York Times Best-Selling Author, Spiritual Life Coach & Host of "Iyanla Fix My Life"

Jay Pharoah

Actor, Stand-Up Comedian & Impressionist; Former Saturday Night Live Cast Member

Amy Robach

Co-Host of "Amy & T.J. Podcast"; Former Co-Host of "20/20" & Former ABC News Correspondent for "Good Morning America;" Breast Cancer Survivor

Kristen Kish

"Top Chef" Host & Season 10 Winner; Cookbook Author

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Vince Gilligan

Creator, "Breaking Bad" & "Better Call Saul"

Kal Penn

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

Archie Manning

Former NFL Great & Ambassador of Goodwill

Trish Regan

Investigative Journalist, Host of "Trish Regan Primetime"

Chade Meng Tan

Chief Happiness Officer, Google; Award-winning Entrepreneur and NYC Best-Selling Author

Jill Abramson

Former Executive Editor of The New York Times

Walter Robb

Food Retail Expert & Food Access Advocate; Principal at Stonewall Robb Advisors; Former Co-CEO of Whole Foods Market

Ree Drummond

Host of "The Pioneer Woman" on the Food Network

Kevin Roberts

Authority on Brands & the Future of Marketing; Executive Chairman, Saatchi & Saatchi; Creator of Groundbreaking Concept & Book: Lovemarks

Marcus Samuelsson

James Beard Award-Winning Chef & Owner of the Red Rooster Restaurant

Professor Richard Dawkins

Evolutionary Biologist & Best-Selling Author

Richard Dawkins & Lawrence Krauss ...

Ted Allen

Host, "Chopped," Contributor, "The Best Thing I Ever Ate"

Dara Torres

12x Olympic Medalist, NYT Bestselling Author, Entrepreneur & Healthcare Reform Advocate

Nikki Glaser

Stand-Up Comedian & Podcast Host; Known for "Last Comic Standing" and "Inside Amy Schumer"

Herschel Walker

Former NFL Running Back, 1982 Heisman Trophy Winner & Mental Health Awareness Advocate

Mario Lopez

Actor & Entertainment Journalist

Monica Lewinsky

Producer, Social Activist, Contributing Editor to Vanity Fair, Expert on Cyberbullying, Women's Issues & Reinvention

Monica Lewinsky Suits Up for Reformation's New Power Voting Campaign

Bob Woodward

Legendary Pulitzer Prize-Winning Investigative Journalist; 22-Time Best-Selling Author & Associate Editor at The Washington Post

Geoffrey Moore

Organizational Theorist, Management Consultant & Author

David McCandless

Author of "Information Is Beautiful" & Infographics Expert