Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor

Ellen DeGeneres

Award-Winning Comedian, TV Host, Actress & LGBTQ Activist

Charlize Theron

Academy Award-Winning Actress; Best Known for "Monster" & "Mad Max: Fury Road"

Laura Dern

Actress, Director, Producer & Activist

Edie Falco

Actress, Known for "The Sopranos" & "Nurse Jackie"

Carrie Ann Inaba

"Dancing with the Stars" Judge, Founder of Carrie Ann Inaba Animal Project

Kristen Bell

Actress & Film Producer; Known for "Veronica Mars" & "Frozen"

David Duchovny

Actor, Writer & Director Known for "The X-Files," "Aquarius" & "Californication"

Brad Pitt

Actor, Producer, Philanthropist & Environmental Activist

Elayne Boosler

Comedian & Advocate for Animal Rescue; Founder of Tails of Joy

Daniel Pauly

Daniel Pauly is the principal investigator at the Sea Around Us Project, which studies the impact of the world's fisheries on marine ecosystems. The software he's helped develop is used around the world to model and track the ocean.

Dave Salmoni

Animal Planet Television Personality & Large Predator Expert

David Backes

Lauren Shuler Donner

Producer; Best Known for the X-Men Series

Heather Mills

Humanitarian Known For Her Work To Stop Landmines, Animal Cruelty and Many Other Causes

Mickey Rourke

Terri Irwin

Naturalist, Author & Owner of Australia Zoo; Former Star of "The Crocodile Hunter"

Dr. Jan Pol

Veterinarian; Star of Nat Geo Wild's "The Incredible Dr. Pol"

Beth Hoffman

New York Times Bestselling Author of "Saving CeeCee Honeycutt" and "Looking For Me"

Julie Klam

New York Times-Bestselling Author of "The Stars in Our Eyes" & "You Had Me at Woof"