Diane Sawyer

Anchor, ABC World News

Ray Zahab

Ultra-marathon Runner and Adventurer; Host, "The Project"; Author of "Running for My Life"

Arnold Schwarzenegger

Actor, Producer, Director, Writer; California’s 38th Governor; Host of "Celebrity Apprentice"

Jackie Joyner-Kersee

Olympic Legend, Philanthropist, American Record-Holder in the Long Jump & Founder of the Jackie Joyner-Kersee Foundation

Peter Salgo

Healthcare Futurist, Emmy Award-Winning Health & Science Correspondent & Author of "The Heart of the Matter"

Jodie Sweetin

Entrepreneur, Actress, Producer & Author

Alexandra Robbins

Journalist & Bestselling Author; Her Books Include "Secrets of the Tomb: Skull and Bones, the Ivy League, and the Hidden Paths of Power"

Caroline Rhea

Stand-up Comedian, Actress & Television Host

Caroline Rhea Stand-Up: Dating, Astrology and Having a Teenage Daughter

John Izzo, PhD

Leadership Expert & Bestselling Author

Deepak Chopra

Co-Founder of The Chopra Center for Wellbeing

Brooke Shields

Actress; Model; Women's Health, Aging & Mental Wellness Advocate

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York

Leigh Anne Tuohy

Inspirational Subject of "The Blind Side"

Marlo Thomas

Emmy Award-Winning Actress, Social Activist & Presidential Medal of Freedom Recipient

Dan Abrams

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

Soraya Darabi

Renowned Digital Entrepreneur; Social Media Pioneer

Susan Sarandon

Academy-Winning Actress & Activist

Mavis Leno

Chair of the Campaign to Help Afghan Women & Girls

Jeffrey Tambor

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

Gina Rodriguez

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

John Stossel

Emmy-Award Winning Journalist

Marlen Esparza

Professional Boxer, 2012 Olympic Bronze Medalist & World Champion

Vicki Lawrence

Actress, Comedian & Women's Activist; Best Known for her Characters on "The Carol Burnett Show"

Robert Stevenson

Business Speaker & Author of "How to Soar Like An Eagle In A World Full of Turkeys"

Handling Mistakes

Bethany Mota

YouTube Sensation Known for her Fashion, Beauty & DIY Tips; "Dancing with the Stars" Season 19 Contestant

Nikki Reed

Actress, Singer-Songwriter & Model; Founder & CEO of Eco-Sustainable Fashion Brand Bayou With Love; Autism & Environmental Advocate

Ken Dychtwald

Founder & CEO of Age Wave; Gerontologist & Expert on Aging-Related Issues

Alyssa Milano

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

Stewart Baker

First Assistant Secretary for Policy at the United States Department of Homeland Security Under the Presidency of George W. Bush

Daryl Hannah

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