Darin Olien

Co-Host of Netflix "Down To Earth" with Zac Efron, Best-Selling; Original Formulator of "Shakeology;" Healthy Living & Superfoods Expert

Jerome Foster

White House Environmental Justice Advisory Council Member & Executive Director of OneMillionOfUs

Alysia Reiner

Actor, Activist & Entrepreneur

Ron Finley

Grower of a Nourishing Food Culture in South Central L.A.’s Food Desert

Sophia Bush

Actress, Humanitarian & Author

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Gary White

CEO & Co-Founder of WaterEquity & Water.org with Matt Damon

Arnold Schwarzenegger

Actor, Producer, Director, Writer; California’s 38th Governor; Host of "Celebrity Apprentice"

Don Cheadle

Actor, Activist & Author; Known for "Iron Man 2" & "Hotel Rwanda"

Sheryl Crow

Grammy Award-Winning Singer-Songwriter

Adrian Grenier

Actor Known for HBO's "Entourage"; Environmental Activist; UN Ambassador

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Shailene Woodley

Actress & Environmental Activist

Kimbal Musk

Chef, Restaurateur & Philanthropist

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

Cate Blanchett

Academy Award-Winning Actress Known for "Elizabeth" & "The Aviator;" Ambassador for the Australian Conservation Foundation

Olivia Munn

Television & Film Actress; Known for "Newsroom" & "X-Men: Apocalypse"

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

Edward Norton

Award Winning Actor & Filmmaker

Leonardo DiCaprio

Award-Winning Actor & Environmentalist