Mark Ruffalo

Actor, Director, Producer, Screenwriter & Environmental Activist

Maura Tierney

Golden Globe Award-Winning Actress & Breast Cancer Survivor

Drew Brees

Philanthropist & Former Super Bowl MVP-Winning Quarterback for the New Orleans Saints

Summer Sanders

Former Olympic Gold Medalist Swimmer; Sports Commentator

Rita Wilson

Actress, Producer & Singer Known for "Sleepless in Seattle;" Alzheimer's Advocate

Ben Stiller

Actor & Comedian

Dr. Jennifer Ashton

Board-Certified Ob-Gyn, Author & TV Medical Correspondent

Lance Armstrong

World Champion Cyclist, Olympian & Cancer Survivor

Ellen MacArthur

Former Long-Distance Yachtswoman & Founder of the Ellen MacArthur Foundation

Mia Kirshner

Actress Best Known for her Role in "The L-Word"

Hugh Jackman

Australian Actor, Producer & Philanthropist

Jim Kelly

Pro Football Hall of Fame Member & Radio Host of “Under The Helmet With Jim Kelly”

Evan Handler

Actor, Author, Screenwriter & Journalist; Best Known for “Sex and the City,” and "Californication"

Susan Love, MD

Retired Surgeon, Breast Cancer Researcher, Author & Founder of Dr. Susan Love Foundation

Dr. Susan Love's Breast Book (A Merloyd Lawrence Book)

Shannen Doherty

Actress, Producer, Author & TV Director; Breast Cancer Survivor

Shannen Doherty Wants to "Embrace Life"

George Karl

Former Professional Basketball Player, Former Denver Nuggets Head Coach & Cancer Survivor

Marissa Jaret Winokur

Tony Award-Winning Actress, Star of Broadway's "Hairspray"

Emmanuelle Chriqui

Actress Known for "Entourage;" Social Advocate for Colon Cancer, Environmental Issues & Human Rights in Congo

Darryl Strawberry

Former American Major League Baseball Outfielder

AnnaLynne McCord

Activist & Actress Best Known For "90210"