Beau MacMillan

Chef, TV Personality

Steven Tyler

Aerosmith Lead Singer & Former 'American Idol' Judge

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Hal Sparks

Actor & Comedian

Nicole "Snooki" Polizzi

Reality TV Personality, Author & Entrepreneur; Known for "Jersey Shore" and "Snooki & Jwoww"

Buddy Valastro

Host of "The Cake Boss" & "The Next Great Baker"

Robert Kenner

Documentary Filmmaker; Known for "Food, Inc."

Terrence Jenkins

Actor and TV Host

Graham Hill

Founder of Life Edited & TreeHugger.com

Les Stroud

Star of "Survivorman", Producer, Author, Filmmaker & Activist

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

Ethan Zohn

Winner of "Survivor" Africa, 2x Cancer Survivor, Stem Cell Transplant Recipient, Social Entrepreneur, Philanthropist, Cancer Research Advocate, Former Pro Soccer Player, Sports Broadcaster & TV Personality

Janine Turner

Actress, Author & Radio Host; Columnist for the Washington Times

Donald Trump

45th President of the United States; Businessman & TV Personality

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Jeffrey Tambor

Emmy Award-Winning Actor of "Arrested Development," "The Hangover" & "Transparent"

Jon Stewart

Talk Show Host, Comedian & Producer

Jon Stewart will return to ‘The Daily Show’ as host — just on Mondays

Ross Shafer

Six-Time Emmy Award-Winning Comedian, Business Researcher, TV Host & Bestselling Author

Victoria Rowell

Actress, Producer, Director, Writer, American Ballet Theatre Alum & Founder of Rowell Foster Children's Positive Plan (RFCPP)

Asra Nomani

Journalist & Author, Women's Rights Activist

Jillian Michaels

Leading Fitness Expert, Certified Nutritionist, Renowned Life Coach & Powerful Entrepreneur

Brad Meltzer

Host of History Channel’s "Lost History" & "Brad Meltzer’s Decoded;" New York Times Best-Selling Author

Judge Greg Mathis

Civil Rights Activist, Television Personality

Kimberley Locke

Singer / Television Personality

Yul Kwon

Television Host, Management Consultant; VP & General Manager of Local Search at Google; 2006 Winner of 'Survivor: Cook Islands'

Kathy Kaehler

Celebrity Trainer & Lifestyle Expert

Star Jones

Former Co-Host of "The View", Social Justice & Heart Disease Advocate

Marilu Henner

Actress, Producer & NY Times Bestselling Author

Hill Harper

Best-Selling Author, Tech Entrepreneur, Investor, Philanthropist & Actor; Best Known For "CSI: NY" & "The Good Doctor"

Jonathan Safran Foer

Bestselling Author of "Everything Is Illuminated" and "Extremely Loud and Incredibly Close"