Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

Sean Astin

Actor, Director, Voice Artist & Producer Known For "Lord of the Rings"

Soledad O'Brien

Award Winning Journalist, Documentarian, News Anchor, Producer, Entrepreneur & Philanthropist

Judge Greg Mathis

Civil Rights Activist, Television Personality

Joe Torre

Chief Baseball Officer for Major League Baseball; National Baseball Hall of Famer, 4-Time World Series Champion & 9-Time MLB All-Star

Phylicia Rashad

Actress, Dean of Fine Arts at Howard University, Advocate for Children, Women's Issues & Fine Arts

Andrea Mitchell

Host of MSNBC’s "Andrea Mitchell Reports" & Chief Foreign Affairs Correspondent for NBC News

Andrea Mitchell - Celebrating 15 years of "Andrea Mitchell Reports"

Richard Simmons

Fitness Instructor, Actor, Video Producer Known for "Sweatin' to the Oldies" Aerobics Videos

Dan Abrams

Chief Legal Affairs Anchor at ABC News & Founder of Abrams Media

Noreena Hertz

Futurist, Economist, Bestselling Author, "Eyes Wide Open: How to Make Smart Decisions in a Confusing World"

Jeffrey Tambor

Emmy Award-Winning Actor of "Arrested Development," "The Hangover" & "Transparent"

Gina Rodriguez

Award-Winning Actress, Producer, Director, Model & Humanitarian

Nia Vardalos

Oscar-Nominated Actress, Screenwriter & Producer Known for "My Big Fat Greek Wedding"

Linda Armstrong Kelly

Single Mother of Lance Armstrong; Philanthropist & Advocate for Children

Niecy Nash

Emmy Award-Winning Actress Known for Starring as Desna Simms on "Claws"

Wendell Pierce

Author and Actor, best known for "The Wire" and HBO's "Treme"

Jada Pinkett Smith

Actress, Host of "Red Table Talk" & Founder of 100% WOMON

Ty Pennington

Television Personality, Home Makeover Guru & Author

Buzz Aldrin

Former Fighter Pilot & 2nd Man to Walk on the Moon; Author

Sarah Michelle Gellar

Television & Film Actress, Co-Founder of Foodstirs