Dr. Mehmet Oz

Cardiothoracic Surgeon; Host of "The Dr. Oz Show;" Columbia University Professor & Author

Daymond John

"Shark Tank" Investor; Founder & CEO of FUBU; Presidential Ambassador for Global Entrepreneurship

Bob Harper

Personal Trainer & Former Host of "The Biggest Loser;" Heart Attack Survivor

Maintaining A Healthy Body & Mind | Bob Harper Q&A

Richard Dreyfuss

Academy Award-Winning Actor

Anderson Cooper

Journalist, TV Personality, Anchor of CNN's "Anderson Cooper 360°"

Danny Boome

Star of Food Network's "Rescue Chef"

"Boston Rob" Mariano

Reality Star of Survivor & Amazing Race

A.J. Jacobs

Best-Selling Author & "Human Guinea Pig"

The Year of Living Constitutionally: One Man's Humble Quest to Follow the Constitution'...

David Feherty

Golf Commentator for LIV Golf; TV Host, Bestselling Author & Former PGA Tour Pro

Michael Emerson

Award-Winning Actor, Lost

Cat Cora

World-Renowned Chef, Author, Restaurateur, Contributing Editor, Television Host, Actress, Avid Philanthropist, Health and Fitness Expert & Lifestyle Entrepreneur

Beau MacMillan

Chef, TV Personality

Jon Stewart

Talk Show Host, Comedian & Producer

Jon Stewart will return to ‘The Daily Show’ as host — just on Mondays

Star Jones

Former Co-Host of "The View", Social Justice & Heart Disease Advocate

Marilu Henner

Actress, Producer & NY Times Bestselling Author

Hill Harper

Best-Selling Author, Tech Entrepreneur, Investor, Philanthropist & Actor; Best Known For "CSI: NY" & "The Good Doctor"

Jonathan Safran Foer

Bestselling Author of "Everything Is Illuminated" and "Extremely Loud and Incredibly Close"

Linda Ellerbee

Award-Winning Journalist & Television Producer; Breast Cancer Survivor

Rocco DiSpirito

James Beard Award-Winning Chef, Healthy Lifestyle Advocate & New York Times Bestselling Author

Drew Learns Chef Rocco Dispirito's 5-Minute Shrimp Dish

Jamie Lee Curtis

Academy Award-Winning Actress, Activist, Author; Best Known For Her Roles in "Halloween," "Freaky Friday" & "Everything Everywhere All At Once"

Jamie Lee Curtis - MSNBC interview

Bob Costas

Award-Winning Sportscaster, Broadcaster & Best-Selling Author

Steven Cojocaru

Fashion Guru, Host, Television Personality & Kidney Disease Survivor

Dave Barry

New York Times Best-Selling Author & Humorist

Swamp Story: A Novel

Jonathan Van Ness

Hair & Beauty Expert, Author, Television Personality; Known for Netflix's "Queer Eye"

Jarod Miller

Naturalist, Zoologist & Television Host

Saul Williams

Spoken Word Artist

Peter Lance

Award-Winning Investigative Reporter

Van Jones

CEO of REFORM Alliance, CNN host, Emmy Award-winning Producer & NY Times Best-Selling Author

Shawn Johnson East

Olympic Gold Medalist in Gymnastics, "Dancing with the Stars" Winner & Best-Selling Author

Derek Hough

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