Tommy Caldwell & Kevin Jorgeson

Legendary Climbers of El Capitan

Tim Grover

CEO of Attack Athletics, Best-selling Author of "Relentless" and "Jump Attack"

Rich Froning

CrossFit Athlete, Coach & Christian Speaker

David Zinczenko

Founder & CEO of Galvanized; Former Vice President of Men's Health, Women's Health & Prevention; Retired Nutrition & Wellness Editor at ABC News

Dara Torres

12x Olympic Medalist, NYT Bestselling Author, Entrepreneur & Healthcare Reform Advocate

Olivia Ward

Winner of "Biggest Loser" Season 11

Daphne Oz

Emmy Award-winning Television Host, New York Times Bestselling Author, Chef & Entrepreneur

Dolvett Quince

Fitness Guru & Trainer from "The Biggest Loser"

Tony Horton

Fitness Expert & Founder of Fitness Program P90X

Crush It!: The Revolutionary Fitness Plan for All Levels That Burns Fat, Builds Muscle,...

Dr. Holly G. Atkinson

Award-Winning Medical Journalist

Ali Vincent

First Female Winner of "The Biggest Loser"

Giuliana Rancic

Entertainment Journalist & Breast Cancer Survivor

Venus Williams

Professional Tennis Player, Four-Time Olympic Gold Medalist, Equal Pay Activist, Author & Entrepreneur

Joe Theismann

World Champion Quarterback, Broadcaster & Entrepreneur

Michael Strahan

Co-Host of "Good Morning America", "Fox NFL Sunday" Analyst, NFL Hall of Famer & Super Bowl Champion

Michael Strahan and his daughter Isabella, 19, reveal her brain cancer diagnosis in emo...

Dr. Travis Stork

Bestselling Author, Emergency Medicine Physician & TV Personality Known for "The Doctors"

Ozzie Smith

15-Time MLB All-Star & National Baseball Hall of Fame Inductee; Former Shortstop for the San Diego Padres & St. Louis Cardinals

Deion Sanders

Head Football Coach at the University of Colorado Boulder; NFL Hall of Famer, Two-Time Super Bowl Champion, and Broadcast Analyst

Elevate and Dominate: 21 Ways to Win On and Off the Field

Ian Morrison

Healthcare Futurist and Author

Shannon Miller

Olympic Gold Medalist, Health Advocate & Cancer Survivor