Dr. Jerome Groopman

Physician, Author, Anatomy of Hope, How Doctors Think. Your Medical Mind

Tracy Anderson

Fitness Pioneer, Entrepreneur & Author, Founder of The Tracy Anderson Method

Tracy Anderson shares moves to work your whole body

Ian Harding

Actor Known for his Role as Ezra Fitz on "Pretty Little Liars"

Nancy Alspaugh-Jackson

Executive Director of Autism Care Today!

Sandra Lee

Cancer Survivor, Activist, Author, Emmy Award-Winning Television Chef & Home Life Expert

Ellen Gustafson

Co-Founder of Food Tank; Co-Founder of FEED Projects; Founder of 30 Project & ChangeDinner

Brenda Strong

Emmy-Nominated Actress & CEO of Strong Inspiration Inc; Known for "Dallas"

Denise Austin

Fitness Expert, Author & Video Hall of Famer

Dean Cain

Actor, Producer and Television Personality; Best know for his portrayal of Superman in 'Lois & Clark: The New Adventures of Superman'

Rachel Frederickson

Winner of "The Biggest Loser" Season 15

David Acheson

Food and Import Safety Specialist; Former Chief Medical Officer of FDA

Tom A. Scully

Senior Counsel at Alston & Bird LLP; Former Administrator of the Centers for Medicare and Medicaid Services (CMS)

Josh Hamilton

Former Outfielder for the Texas Rangers; 5-Time MLB All-Star & Recovering Substance Abuser

Dr. David Shore

Public Health Advocate; Author - The Trust Prescription for Healthcare; Authority on Managing Change Initiatives and Gaining Competitive Advantage

Ryan Charles

Mobile Guru (Former Zagat Mobile Head), CPG Entrepreneur

Ruben Studdard

American Idol Winner; The Biggest Loser Contestant; Dubbed the "Velvet Teddy Bear"

Eric Roberts

Actor Known for his Roles in "Runaway Train," "The Dark Knight" and "Heroes"