Ellie Krieger

Chef, Nutritionist, Best-Selling Author & Host of “Ellie’s Real Good Food”

Tisha Rowe

Family Medicine Physician & Entrepreneur

Richard Simmons

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

Dr. Holly G. Atkinson

Award-Winning Medical Journalist

Kayla Itsines

Personal Trainer, Author, Entrepreneur, Creator of BBG Workouts

Jenny Evans

Stress Resiliency Expert, Speaker & Author

Joy Bauer

Nutrition and Health Expert on NBC's "Today Show" & Founder of Nourish Snacks

Seth Berkley

CEO of Gavi, the Vaccine Alliance; Medical Doctor Specializing in Infectious Disease, Epidemiology and Global Health

Rich Froning

CrossFit Athlete, Coach & Christian Speaker

Dean Kamen

Founder of FIRST; President of DEKA Research & Development Corporation

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Nelson George

Author / Filmmaker

An Phung

Multimedia Journalist

Daniel Kahneman

Retired Professor of Psychology & Public Affairs at Princeton University, Author

Courtney Nichols Gould

Biodiversity & Ocean Conservation; Co-Founder of NewAtlantis; Co-Founder & Co-CEO of SmartyPants Inc.

Bob Kocher

Partner at Venrock; Healthcare IT Expert

Dr. Connie Mariano

Former White House Physician; Rear Admiral of the U.S. Navy; Author of "The White House Doctor: My Patients Were Presidents"

Cassey Ho

Creator of Blogilates, Fitness & Nutrition Personality

Derek Hough

Dancer, NYT Bestselling Author, Emmy Award Winner for Outstanding Choreography & Six-Time Champion of ABC's "Dancing with the Stars"

‘DWTS’ judge Derek Hough marries Hayley Erbert in ‘incredibly romantic’ fairy-tale wedding

Billy Blanks

Martial Artist, Actor, Creator of Tae Bo Exercise Programs