Amber Jenkins

Applied Science Engineer, NASA’s Jet Propulsion Laboratory; Editor, NASA Climate Change Website

Andie MacDowell

Film Actress

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

David Agus

Co-Founder of Navigenics, Author of "The End of Illness" & Host of "The Checkup with Dr. David Agus"; Professor of Medicine & Engineering at the University of Southern California

The Book of Animal Secrets

DeVon Franklin

Award-Winning Producer, New York Times Bestselling Author & Motivational Speaker

Dennis Prager

Host of the Dennis Prager Radio Show, Co-Founder of Prager University, NY Times Bestselling Author & Columnist

Dr. Antonia Darder

Scholar, Artist, Poet, Activist & Public Intellectual

Dr. Lisa Masterson

OB/GYN, Mom, Philanthropist & Author; Known as Co-Host of "The Doctors"

Greg Louganis

4x Olympic Gold Medal Diver; LGBTQ Activist & Author

Ichak Adizes

Corporate Performance Expert & Authority on Managing Change

Irshad Manji

Founder of The Moral Courage Project, Author of "Allah, Liberty and Love" & "The Trouble with Islam Today: A Muslim's Call for Reform in Her Faith"

Jason Collins

First Openly Gay Player In Major League Sports; Retired NBA Player; Equality Advocate

Jenji Kohan

Creator, "Orange is the New Black"

Jenna Marbles

YouTube Sensation

Jessica Yellin

Founder of #NewsNotNoise; Former Chief White House Correspondent for CNN

Jim Abbott

Former One-Handed Major League Baseball Pitcher

Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

Kay Warren

Christian Author

Lamman Rucker

Actor, Education Activist, Green Living Advocate & Entrepreneur

Lance Gross

Actor, Model & Photographer; Best Known for "House of Payne"