Brad Pitt

Actor, Producer, Philanthropist & Environmental Activist

Marion Cotillard

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

Sophia Bush

Actress, Humanitarian & Author

Mary Steenburgen

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

Alysia Reiner

Actor, Activist & Entrepreneur

Olivia Munn

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

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

Matt Damon

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

Shailene Woodley

Actress & Environmental Activist

Molly Sims

Actress, Model & Lifestyle Expert; Environmental & Ocean Activist

Hayden Panettiere

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

Beyoncé Knowles-Carter

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

Beyoncé - Chicago Sun-Times

Patricia Arquette

Academy Award-Winning Actress, Activist, Humanitarian & Author

Nicole Kidman

Actress, Singer & Film Producer; Known for "The Hours" & "Moulin Rouge!"

Alicia Silverstone

Actress & Animal Rights Activist

Robert Redford

Actor, Director, Producer, Environmentalist & Founder of the Sundance Film Festival

Ashley Judd

Actress, Activist & Humanitarian

Kristen Stewart

Golden Globe Nominated Actress Known for "Twilight" & "Spencer"

Daryl Hannah

Actress, Best Known for "Kill Bill" & "Splash"; Environmental Activist

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Alyssa Milano

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

Stephanie Hsu

American Actress Known for "Everything Everywhere All At Once"

Alison Sudol

Singer-Songwriter, Musician, Actress & Video Director

Alison Sudol - Come On Baby [Official Video]

Tilda Swinton

Actress Known for "The Chronicles of Narnia," "We Need to Talk About Kevin" & "The Grand Budapest Hotel"

Tilda Swinton, Idris Elba talk 'Three Thousand Years of Longing'

Kate Winslet

Academy Award-Nominated English Actress & Autism Awareness Advocate

Julianne Moore

Academy Award & Emmy Award-Winning Actress

Helena Bonham Carter

Award-Winning Actress; Best Known for "Harry Potter"

Emma Stone

Two-Time Academy Award-Winning Actress Best Known for "La La Land," "Cruella" & "Poor Things"

'Poor Things' with Emma Stone, Willem Dafoe, Mark Ruffalo & more

Laura Dern

Actress, Director, Producer & Activist

Amy Brenneman

Actress, perhaps best known for her roles on "NYPD Blue," "Judging Amy," and "Private Practice"

Bernadette Beck

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