Donny Osmond

American Singer, Musician, Actor, Dancer, Radio Personality, and Former Teen Idol

Tyra Banks

Host & Executive Producer, "Dancing With the Stars"; Model, TV Personality, Host of "America's Next Top Model"

Mark Burnett

CEO, One Three Media; Five time Emmy Award Winning Producer

Sigourney Weaver

Golden Globe-Winning Actress & Environmentalist

Sir Howard Stringer

President, Chairman & CEO of Sony Corporation

Nikolaj Coster-Waldau

Actor Known for his Role as Jamie Lannister on HBO's "Game of Thrones"

Hank Green

#1 New York Times Best-Selling Author & CEO of Complexly

Noa Tishby

Israeli Actress, Writer, Producer & Activist

Uncomfortable Conversations with a Jew

Debbie Sterling

Tech Engineer & Founder and CEO of GoldieBlox; Advocate for Women in STEM

Danny Glover

Acclaimed Actor, Producer & Leading Social Activist

Nina Garcia

Editor-In-Chief of Elle Magazine, Judge on "Project Runway;" Alzheimer's Awareness & Prevention Advocate

Brad Stone

Veteran Silicon Valley Journalist & Author of "The Everything Store: Jeff Bezos and the Age of Amazon"

General Wesley Clark

Retired Four-Star Army General & Former NATO Supreme Allied Commander

Ali Velshi

CNN Chief Business Correspondent

Alec Ross

Author of "The Industries of the Future," and Recent Senior Advisor for Innovation to Hilary Clinton

Mary Steenburgen

Character Actress; Best Known for her Role in "Philadelphia"

Tavi Gevinson

Creator of Fashion Blog Style Rookie and Rookie Magazine; Actress and Singer in the Broadway Show "This Is Our Youth"

Jeffrey Toobin

Former CNN Senior Analyst & Best-Selling Author

Rob Huebel

Actor, Comedian & Writer; Known for his Role in "Children's Hospital" and "Transparent"

Us the Duo

Husband & Wife Musical Duo Popularized on Vine

Jessie Pavelka

Fitness Expert; Former Television Host on NBC’s "The Biggest Loser"

Flula Borg

Actor, Host and Online Personality; Known for His Role in "Pitch Perfect 2"

Amy Thielen

Hostess of Heartland Table on Food Network