April Ryan

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

Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

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

Reshma Saujani

Lawyer, Politician, Founder of Girls Who Code & Marshall Plan for Moms

Alexa von Tobel

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

Patrick Kennedy

Former Congressman (D-RI); Founder of The Kennedy Forum; Co-Founder of One Mind

Charles Duhigg

Pulitzer Prize-Winning Journalist & Bestselling Author of "The Power of Habit"

Supercommunicators: How to Unlock the Secret Language of Connection

Maysoon Zayid

Palestinian-American Actress, Writer, Comedian, Disability & Anti-Cyber Bullying Advocate

Montel Williams

Emmy Award-Winning Talk Show Host; Multiple Sclerosis Survivor; Health Equity & Veteran Advocate

Aasif Mandvi

Comedic Actor & Former Correspondent for "The Daily Show"

Joan Lunden

Award-Winning Journalist, Best-Selling Author, Health & Wellness Advocate

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Jon Steinberg

CEO of Future Plc., Founder of Cheddar; Former President & COO of Buzzfeed; Former CEO of Daily Mail.com in North America

Don Lemon

Emmy Award-Winning News Anchor & Journalist, Author of "This Is The Fire"

Don Lemon To Launch New Show On X

Simon Schama

Professor of Art History and History at Columbia University in New York

Carson Kressley

TV Personality & Fashion Designer; Best Known for "Queer Eye for the Straight Guy"

Jeremy Heimans

Co-Founder & Chairman of Purpose; Best-Selling Author; Lifelong Activist & World-Renowned Expert on Building Social Movements

Anne-Marie Slaughter

Foreign Policy Expert, Author & CEO of New America Foundation

David Zinczenko

Founder & CEO of Galvanized; Former Vice President of Men's Health, Women's Health & Prevention; Retired Nutrition & Wellness Editor at ABC News

Brian Kilmeade

Television & Radio Presenter; Co-host of "Fox & Friends" on FOX News Channel