Leland Melvin

Engineer, Former NASA Astronaut & Former NFL Wide Receiver

Philippe Cousteau

Explorer, Social Entrepreneur & Environmental Advocate; Grandson of Captain Jacques-Yves Cousteau

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Eric Burdon

English Singer-Songwriter, Best Known as the Vocalist for The Animals

Alison Victoria

Interior Designer; Host of HGTV's "Kitchen Crashers"

Shaun Tomson

Former World Champion Surfer, Environmentalist & Motivational Speaker

Moran Atias

Israeli Actress Known for Her Roles in "Crash" & "Third Person"

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Eric Roberts

Actor Known for his Roles in "Runaway Train," "The Dark Knight" and "Heroes"

Selenis Leyva

Cuban-American Actress Known for Her Role as Gloria in "Orange is the New Black"

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Rick Ridgeway

Environmentalist, Mountaineer, Expedition Author, Former VP of Environmental Initiatives & Special Projects at Patagonia

Ingrid Newkirk

President, PETA

Ty Murray

Retired Professional Bull Rider; Seven Time All Around Champion

Kristin Bauer van Straten

Best known as Pam on HBO's "True Blood"

Ashley Greene

Actress and model; best known for her recent roles in the "Twilight" series

Murray SawChuck

Stage Illusionist & Comedian

Murray having some fun with Dean Cain!!!

Lo Bosworth

Entrepreneur & Lifestyle Personality, Author, and Alum of MTV’s Reality Show, "The Hills"

Tamilee Webb

Fitness Expert & Instructor, Star of "BUNS OF STEEL"

Will Allen

Pioneer in the Urban Farming Movement, Author & Founder of Growing Power