Bill Nye

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

Max Greenfield

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

Josh Peck

Actor & Social Media Influencer

Ben Stein

Political Economist, Commentator, Author & Actor

Hasan Minhaj

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

Nev Schulman

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

Retta

Stand-Up Comedian & Actress Known for "Parks and Recreation"

Nicole Byer

Comedian, Actress & Writer; Co-Host of "Wipeout"

Nick Offerman

Actor, Writer & Carpenter; Best Known for "Parks and Recreation"

Bill Hader

Actor, Comedian, Writer, & Director; Known for "Saturday Night Live" & "Barry"

Seth Meyers & Bill Hader's Favorite SNL Memories & Barry Finale

Andy Cohen

Emmy Award-Winning Host & Producer of Bravo’s "Watch What Happens: Live"

Andy Cohen reacts to his infamous New Year’s Eve rant

William Shatner

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

Kal Penn

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

Jay Pharoah

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

Kate McKinnon

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

Seth Meyers

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

Aasif Mandvi

Comedic Actor & Former Correspondent for "The Daily Show"

Carol Leifer

Award-Winning Writer, Author, Actress & Standup Comedian

Spike Lee

Academy Award-Winning Writer, Producer, Actor & Director; Best Known for "BlacKkKlansman" & "Malcolm X"

Thomas Middleditch

Actor, Voice Actor, Comedian, Screenwriter Known for "Silicon Valley"

Henry Winkler

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

Cecily Strong

Actress, Comedian, "Saturday Night Live" Cast Member & Former Co-Anchor of "Weekend Update"

Janet Mock

Author, Feminist, Transgender Rights Activist, TV Host & Founder of #GirlsLikeUs

Ashlee Vance

Award Winning Feature Writer, Bloomberg Businessweek; Author of NYT Bestseller "Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future"

Eric Thomas

Inspirational Speaker, Life Strategist & Author

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"