Pink

Singer-Songwriter, Actress, Philanthropist & Environmental Activist

Al Joyner

1984 Olympic Gold Medalist in the Men's Triple Jump

Shirley Franklin

Executive Board Chair of Purpose Built Communities; Former Mayor of Atlanta, Georgia

Ed Harris

Actor Known for his Roles in "Pollock," "The Truman Show," "Apollo 13" and "Gravity"

Dee Dee Myers

Former White House Press Secretary; Former Head of Corporate Communications & Public Affairs at Warner Brothers

Ewan McGregor

Actor Known for "Trainspotting," "Big Fish" & "Salmon Fishing in the Yemen"

Dana Delany

Emmy Award-winning Actress

Uma Thurman

Actress and Model; Known for "Kill Bill"

Maggie Gyllenhaal

Actress, Model & Activist

David Cross

Emmy Award-Winning Actor, Comedian, Producer & Writer

David Cross Can't Be Confined To The Late Show's Guest Chair

Amy Brenneman

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

Natalie Maines

Singer-Songwriter & Activist; Best Known for Being Lead Singer of the Dixie Chicks

Faye Wattleton

Co-Founder of EeroQ, a Leader in Quantum Computing Hardware; Reproductive Rights Activist; First African American & the Youngest President Ever Elected of Planned Parenthood Federation of America

Faye Wattleton - The Ethics of Quantum Computing

Ani Difranco

Folk/Punk Icon & Founder of Righteous Babe

William H. Macy

American Actor, Screenwriter, Teacher & Director in Theater, Film & Television

Fisher Stevens

Actor, Director, & Producer

Calista Flockhart

Actress best known as "Ally McBeal"

Ben Harper

Grammy Award-Winning Singer-Songwriter, Multi-Instrumentalist & Activist

Stanley Tucci

Actor, Writer, Film Producer & Film Director

Bradley Whitford

Actor & Political Activist