Bob Costas

Award-Winning Sportscaster, Broadcaster & Best-Selling Author

LL Cool J

Hip-Hop Artist, Host of "Lip Sync Battle" & Actor Known For "NCIS"

LeVar Burton

Literacy Advocate & Actor Known for "Roots," "Star Trek" & "Reading Rainbow"

Sir Richard Branson

Businessman & Founder of Virgin Group

Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

Richard Hammond

British Television Presenter, Host of "Top Gear"

Greg McKeown

CEO of THIS Inc. & Best-Selling Author of "Essentialism: The Disciplined Pursuit of Less"

Dee Snider

Daniel "Dee" Snider is an American singer-songwriter, screenwriter, radio personality, and actor.

Will Smith

Actor, Producer, Entrepreneur, Philanthropist & Author

Clark Gregg

Actor Known For "The New Adventures of Old Christine" & "The Avengers"

Issa Rae

Actress, Writer, Director & Producer Known for HBO's "Insecure" & "Awkward Black Girl"

Bob Woodward

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

Mark Wahlberg

Actor, Producer & Philanthropist

Ben Affleck

Academy Award-Winning Producer, Writer, Director & Actor

Stanley Tucci

Actor, Writer, Film Producer & Film Director

N. Hamilton-Smith

British Milliner, Recording Artist, Author, Film Maker & Visionary

Oprah Winfrey

CEO of Oprah Winfrey Network, Presidential Medal of Freedom Recipient & National Women's Hall of Famer

Oprah Winfrey: Broken Open | Oprah's Super Soul | OWN Podcasts ...

Jon Hamm

Emmy Award Winner & Actor Known for His Role as Don Draper on AMC's Hit Series "Mad Men"

T.I.

Grammy Award-Winning Rapper & Record Producer

Chris Colfer

Golden Globe Winning Actor, Singer, Screenwriter & New York Times Best-Selling Author; Known for His Role in "Glee"

Forest Whitaker

Award-Winning Actor, Producer & Director; Best Known for "Rogue One: A Star Wars Story" & "The Last King of Scotland"

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 ...

Dwayne "The Rock" Johnson

Actor, Former WWE Wrestler & New York Times Best-Selling Author of "The Rock Says..."

Rainn Wilson

Actor Known for "The Office" & Creator of SoulPancake

Soul Boom: Why We Need a Spiritual Revolution

Alice Walker

Pulitzer Prize & National Book Award-Winning Author; Best Known for "The Color Purple"

Jessica Simpson

International Music Superstar, Bestselling Author & Entrepreneur

Paul Reiser

Actor, Writer & Stand-Up Comedian Known for Portraying Paul Buchman in "Mad About You"

Gordon Ramsay

Celebrity Chef, Restaurateur, Cookbook Author & Television Personality Known for "Hell's Kitchen" and "MasterChef"

Natalie Portman

Award-Winning Actress Known for "Black Swan," "V for Vendetta" & Playing Padmé Amidala in the Star Wars Prequel Trilogy

Natalie Portman on self-confidence and performing from an early ...

Tyler Perry

Actor, Writer, Producer, Comedian & Director; CEO of Tyler Perry Studios