Henry Winkler

Actor, Producer, Director & Best-Selling Author; Best Known for "Happy Days"

Amy Robach

Co-Host of "Amy & T.J. Podcast"; Former Co-Host of "20/20" & Former ABC News Correspondent for "Good Morning America;" Breast Cancer Survivor

Daphne Oz

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

Richard Blais

Chef, Culinary Designer & Winner of Bravo's "Top Chef All Stars"

Nia Long

NAACP Image Award-Winning Television & Film Actress, Philanthropist

Dan Harris

Award-Winning ABC News Anchor & #1 New York Times Best-Selling Author

David Zinczenko

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

Ray Lewis

Celebrated NFL Linebacker, The Ray Lewis Family Foundation Founder & ESPN Commentator

Peyton Manning & Ray Lewis reminisce on their playing days

Jennifer Arnold

Co-Star of TLC’s "Little Couple," Neonatologist, Cancer Survivor & Author of "Life is Short"

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Chris Spielman

Former All-Star Linebacker, Special Assistant for the Detroit Lions & Breast Cancer Awareness Advocate

Dr. Michael Roizen

Chief Wellness Officer at the Cleveland Clinic & Co-Founder of RealAge; Anesthesiologist & Former FDA Advisory Committee Chair

Chade Meng Tan

Chief Happiness Officer, Google; Award-winning Entrepreneur and NYC Best-Selling Author

Ozzie Smith

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

Roger Staubach

Businessman; Heisman Trophy Winner & Hall of Fame Quarterback

Camryn Manheim

Actress; Human Rights Activist; Writer & Producer

Dolvett Quince

Fitness Guru & Trainer from "The Biggest Loser"

Nancy Snyderman, MD

Retired Surgeon & Award-Winning Medical Journalist

Anthony Atala

Director, Wake Forest Institute for Regenerative Medicine

Dr. Travis Stork

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