Alicia Silverstone

Actress & Animal Rights Activist

Sophia Bush

Actress, Humanitarian & Author

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Hayden Panettiere

Actress Known for "Nashville" & "Heroes" & Animal Rights Activist

Patricia Arquette

Academy Award-Winning Actress, Activist, Humanitarian & Author

Molly Sims

Actress, Model & Lifestyle Expert; Environmental & Ocean Activist

Alysia Reiner

Actor, Activist & Entrepreneur

Marion Cotillard

Academy Award-Winning French Actress; Environmental Activist & Greenpeace Spokesperson

Olivia Munn

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

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

Shailene Woodley

Actress & Environmental Activist

Cate Blanchett

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

Alyssa Milano

Actress, Author, Philanthropist & Founder of Touch by Alyssa Milano; Known for "Charmed" and "Who's the Boss"

Ashley Judd

Actress, Activist & Humanitarian

Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor

Elaine Hendrix

Actress & Animal Activist; Known for her Role in the Remake of "The Parent Trap"

Mark Ruffalo

Actor, Director, Producer, Screenwriter & Environmental Activist

Mariana Tosca

Film & Television Actor; Social Activist & Animal Welfare Advocate

Lucy Lawless

Actress, Activist & Musician Best Known for Playing the Title Character in "Xena: Warrior Princess"

Pierce Brosnan

Actor, Producer & Activist; Best Known for His Role as James Bond

Brad Pitt

Actor, Producer, Philanthropist & Environmental Activist

Alanis Morissette

Alt-Rock Angst Icon Known for "You Oughta Know" & "Ironic"

Pink

Singer-Songwriter, Actress, Philanthropist & Environmental Activist

Loretta Swit

Animal Activist & Emmy Award-winning Actress; Best Known for "M*A*S*H"

Mary Steenburgen

Character Actress; Best Known for her Role in "Philadelphia"

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Beyoncé Knowles-Carter

R&B and Pop Singer-Songwriter, Actress & Cultural Icon; Most Recently Known for "Cowboy Carter"

Beyoncé - Chicago Sun-Times

Bernadette Beck

Founder & CEO of Kindle Coffee & 1 for 1 Foundation; Actress & Journalist Known for "Riverdale"

Karen Abercrombie

Actress, Producer, Writer & Environmentalist

Alison Sudol

Singer-Songwriter, Musician, Actress & Video Director

Alison Sudol - Come On Baby [Official Video]

Dr. Sylvia Hood Washington

Chief Environmental Research Scientist at Environmental Health Research Associates, LLC.