Peter Diamandis

Founder & Executive Chairman of the XPRIZE Foundation; Author; Named One of The World's 50 Greatest Leaders

Erin Brockovich

Consumer Advocate, Author, TV Host & Environmental Activist

LeVar Burton

Literacy Advocate & Actor Known for "Roots," "Star Trek" & "Reading Rainbow"

Todd Buchholz

Former White House Director of Economic Policy & Managing Director of the $15 Billion Tiger Hedge Fund

Opinion: Evidence EVs are a fading fad is ‘rolling in fast’ as Tesla, GM and Ford slash...

Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor

Kirk Cameron

Actor Best Known for "Growing Pains," "Left Behind" & "Fireproof;" Advocate for Christianity & Gospel-Centered Marriage

Goldie Hawn

Academy Award-Winning Actress & Founder of the Hawn Foundation

Pastor Rick Warren

Pastor & Author of "The Purpose-Driven Life"

Duff Goldman

Pastry Chef & Food Network Host; Star of "Ace of Cakes"

Les Brown

Motivator, TV Personality & Best-Selling Author

Alonzo Bodden

Winner of NBC's "Last Comic Standing"; Regular Panelist on NPR's "Wait Wait ... Don't Tell Me"

Christine Dumas

Consumer Health & Lifestyle Reporter; Strategic Healthcare Policy Advisor; Author

Aaron Koblin

Co-Founder & President at Supernatural & Within; Former Leader of the Data Arts Team at Google

Chelsie Hightower

Professional Ballroom Dancer; Known for "Dancing With the Stars" and "So You Think You Can Dance"

Steven Spielberg

Oscar Award-Winning Filmmaker

Rafe Esquith

One of America's Most Celebrated Schoolteachers

Leonardo DiCaprio

Award-Winning Actor & Environmentalist

Noel Jones

Founder and Bishop, The Noel Jones Ministries

Morgan Freeman

Academy Award-Winning Actor, Narrator & Humanitarian

Morgan Freeman Spent 25 Years on His 761st Tank Battalion Documentary

Robert Downey Jr.

Academy Award-Winning Actor & Producer

Robert Downey Jr. Wins Male Supporting Actor In A Motion Picture