Aasif Mandvi

Comedic Actor & Former Correspondent for "The Daily Show"

Adam Savage

Industrial & Special Effects Designer, Educator & Co-Host of "MythBusters"

Ahmed Hassan

Celebrity Landscaper & TV Host of DIY's Yard Crashers, Blog Cabin, Turf War

Alan Alda

Actor; Writer; Science Advocate; Director

Alexa von Tobel

Founder & CEO of Learnvest.com; New York Times Bestseller Author of "Financially Fearless"

Ali Vincent

First Female Winner of "The Biggest Loser"

Amy Purdy

Former "Dancing with the Stars" Contestant & Paralympic Professional Snowboarder

Amy Robach

Co-Host of "Amy & T.J. Podcast"; Former Co-Host of "20/20" & Former ABC News Correspondent for "Good Morning America;" Breast Cancer Survivor

Andie MacDowell

Film Actress

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

Anna Deavere Smith

Award-Winning Actress, Playwright & Social Commentator

Anthony Zuiker

Emmy Award Nominated Writer, Creator & Executive Producer of the ‘CSI’ Franchise

April Ryan

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

Ashley Judd

Actress, Activist & Humanitarian

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Barbara Bradley Hagerty

Religion Correspondent for NPR Who Reports on the Intersection of Faith and Politics, Law, Science and Culture

Beau Willimon

Creator & Screenwriter, "House of Cards"

Ben Stein

Political Economist, Commentator, Author & Actor

Bill Hader

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

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

Bill Kurtis

TV Journalist, Producer, Narrator and News Anchor; Host of A&E's "Investigative Reports," "American Justice" and "Cold Case Files"