Monica Lewinsky

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

Josh Peck

Actor & Social Media Influencer

Natasha Lyonne

Actress known for "American Pie" and "Orange Is the New Black"

Max Greenfield

Actor Known For "New Girl"

Andy Cohen

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

Henry Winkler

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

William Shatner

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

Boldly Go: Reflections on a Life of Awe and Wonder

Robert Reich

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

Bill Nye

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

Joan Lunden

Award-Winning Journalist, Best-Selling Author, Health & Wellness Advocate

Steven Levitt

Economist, NY Times Bestselling Author of "Freakonomics," "SuperFreakonomics" & "Think Like a Freak"

Josh Altman

Successful Real Estate Agent & Star of Bravo's "Million Dollar Listing"

Melissa Rivers

Actress, Television Host & Producer, Equestrienne, and Philanthropist; Daughter of Late Comedian Joan Rivers

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Ben Stein

Political Economist, Commentator, Author & Actor

Camryn Manheim

Actress; Human Rights Activist; Writer & Producer

Dennis Prager

Host of the Dennis Prager Radio Show, Co-Founder of Prager University, NY Times Bestselling Author & Columnist

Nev Schulman

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

Sherry Lansing

Former CEO of Paramount Pictures & Founder of The Sherry Lansing Foundation

Jon Steinberg

Founder & CEO of Cheddar; Former President & COO of Buzzfeed; Former CEO of Daily Mail.com in North America