America Ferrera

Award-Winning Actress, Producer & Humanitarian

Geena Davis

Award-Winning Actress, Gender Equality Activist & Philanthropist

LeVar Burton

Literacy Advocate & Actor Known for "Roots," "Star Trek" & "Reading Rainbow"

Samantha Bee

Host of "Full Frontal" on TBS & Former Correspondent at "The Daily Show" With Jon Stewart

Kerry Washington

Actress, Producer & Activist Known for Starring as Olivia Pope in ABC's "Scandal"

Robert Irvine

Celebrity Chef, Philanthropist & Author; Best Known for "Restaurant: Impossible"

Guy Fieri

Restaurateur, Author & Emmy Award-Winning Host of "Minute To Win It" & "Diners, Drive-Ins and Dives"

Tom Colicchio

Chef & Owner of Crafted Hospitality

Jewel

Singer-Songwriter, Advocate for People Experiencing Homelessness & Author of "Never Broken"

Chris Berman

ESPN Sportscaster and Former Host of NFL Countdown & NFL Primetime; One of Sports Television's Most Recognizable Personalities

Kristin Chenoweth

Tony-Award Winning Broadway Star & Actress Best Known for "Wicked"

Unleashed: Meet Broadway Star Kristin Chenoweth's Service Pup Thunder

John Lasseter

Chief Creative Officer at Walt Disney and Pixar Animation Studios

Dana Carvey

Actor and Stand Up Comedian, Cast Member on Saturday Night Live and Garth Algar in "Wayne's World"

Leonardo DiCaprio

Award-Winning Actor & Environmentalist

Sheryl Crow

Grammy Award-Winning Singer-Songwriter

Bradley Cooper

Actor Known for "Silver Linings Playbook," "Serena" & "American Sniper"

Wyclef Jean

Grammy Award Winning Musician, Formerly in Band "The Fugees"

Ed Helms

Actor, Comedian & Musician; Known "The Office" & "The Hangover" Trilogy

Ed Helms Needs a Mouth Medic While Eating Spicy Wings | Hot Ones

John Cleese

British Comedic Actor, Screenwriter & Producer

Kristen Bell

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