David Miliband

President & Chief Executive Officer of the International Rescue Committee; Former UK Foreign Secretary

Lucien Canton

Former Soldier, Security Expert, Emergency Manager and Consultant

Ginger Zee

Chief Meteorologist for ABC News, Author & Mental Health Advocate

Chasing Helicity: Through the Storm (The Chasing Helicity Series) (Chasing Helicity Ser...

Melissa Harris-Lacewell

Professor, Princeton University

Kristen Johnston

Emmy Award Winning Actress; Best Known for "3rd Rock From The Sun"

Alex Thomopoulos

TV Food Personality, Private Chef, Comedian and Actress

Pierce Brosnan

Actor, Producer & Activist; Best Known for His Role as James Bond

Dylan O’Brien

Actor Known for his Role in "The Maze Runner" and MTV's "Teen Wolf"

Osric Chau

Actor and Martial Artist

John Cusack

American Film Actor and Writer; "High Fidelity" and "Being John Malkovich"

Julie Gerberding, MD

Infectious Disease Expert; Former Director of the U.S. Centers for Disease Control & Prevention (CDC)

Michael Chertoff

Former Secretary of Homeland Security

Plain White T's

Chicago Pop Punk Band Known for Songs Like "Hey There Delilah" and "Rhythm of Love"

Dr. Phil McGraw

"Dr. Phil" Host, NY Times Bestselling Author, Psychologist

Goran Persson

Former Prime Minister of Sweden

Franklin Graham

President & CEO of the Billy Graham Evangelistic Association, Christian Evangelist & Missionary

Alec Ross

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

James A. Joseph

Former Ambassador to South Africa; Leader in Residence, Hart Leadership Program at Duke University

Adaora Udoji

CEO & Founder of outLoud Inc., Angel Investor and Former Award-Winning Journalist

David Goodman

New York Times Best-Selling Author & Journalist