William Shatner

Emmy-Award Winning Actor, Known for "Star Trek" & "Boston Legal"

Max Greenfield

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

Henry Winkler

Actor, Producer, Director & Best-Selling Author; Best Known for "Happy Days"

Ben Stein

Political Economist, Commentator, Author & Actor

Josh Peck

Actor & Social Media Influencer

Carol Leifer

Award-Winning Writer, Author, Actress & Standup Comedian

Nev Schulman

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

Bill Nye

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

Seth Meyers

Host of "Late Night with Seth Meyers" & Former Head Writer for SNL

Hasan Minhaj

Comedian, Actor, Writer & Star of "Patriot Act with Hasan Minhaj"

Kate McKinnon

Emmy Award-Winning Comedian & Former Cast Member of "Saturday Night Live"

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Robert Wuhl

Actor, Comedian & Writer; Best Known for "Arli$$"

Aasif Mandvi

Comedic Actor & Former Correspondent for "The Daily Show"

Lauren Potter

Actress Best Known for "Glee;" Special Needs Advocate

Tony Horton

Fitness Expert & Founder of Fitness Program P90X

Crush It!: The Revolutionary Fitness Plan for All Levels That Burns Fat, Builds Muscle,...

Walter R. Stahel

Architect, Editor of the Risk Management Newsletter of The Geneva Association & Sustainability Advocate

April Ryan

White House Correspondent, MSNBC Political Analyst, D.C. Bureau Chief for TheGrio & Author

Scott McEwen

Attorney & Author of "American Sniper"

Kehinde Wiley

Visual Artist Specializing in Portrait Painting; Painted Barack Obama's Official Portrait

Diane Guerrero

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

Helen Greiner

CEO at Tertill, Co-Founder & Former President of iRobot Corporation

Brian Krebs

Leading Cybercrime Journalist & New York Times Bestselling Author of "Spam Nation"

Tim Grover

CEO of Attack Athletics, Best-selling Author of "Relentless" and "Jump Attack"

Rishi Manchanda

Physician, Public Health Innovator, President & CEO of HealthBegins

Wendy Davis

Lawyer & Democratic Politician; Founder of Deeds Not Words

Eric Thomas

Inspirational Speaker, Life Strategist & Author

Jeremy Bout

Executive Producer & Host of Edge Factor

Taya Kyle

Advocate for Military Veterans & Families; Widow of Former U.S. Navy SEAL Chris Kyle

Prayers for Bears: Bailey the Grateful Bear

Yoruba Richen

Award-Winning Documentary Filmmaker; Known For TED Talk on the Intersection of Civil Rights & LGBT Rights