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

Mario Lopez

Actor & Entertainment Journalist

Will Packer

Award-Winning Producer Known for "Think Like A Man" & "Straight Outta Compton"; Founder of Will Packer Productions

Mike & Mike

Co-Hosts of Mike and Mike in the Morning

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

Davis Guggenheim

Academy Award-Winning Director & Producer Known for "He Named Me Malala," "An Inconvenient Truth," "Waiting for Superman" & "Still: A Michael J. Fox Movie"

Kevin Spacey

Two-Time Academy Award-Winning Actor, Director, Producer, Screenwriter and Singer; Best Known For His Roles in "American Beauty" and Netflix's "House of Cards"

Henry Winkler

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

Jenji Kohan

Creator, "Orange is the New Black"

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Kal Penn

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

Rob Riggle

Actor, Comedian, Writer, Producer, Director & Former U.S. Marine

Natasha Lyonne

Emmy Nominated Actress; Known for "American Pie," "Orange Is the New Black" & "Russian Doll"

Bill Hader

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

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

Hilary Swank

Academy Award-Winning Actress; Best known for her roles in 'Million Dollar Baby' and 'Boys Don't Cry'

Viola Davis

Academy Award-Winning Actress, Producer & New York Times Best-Selling Author

Viola Davis on Speaking Up, Challenging Stereotypes

John Legend

EGOT Winning Musician, Producer & Philantropist

Giuliana and Bill Rancic

Stars of the reality TV show "Giuliana & Bill" on Style Network

Aasif Mandvi

Comedic Actor & Former Correspondent for "The Daily Show"

B.J. Novak

Actor, Writer & Comedian Known for "The Office"