Phil Robertson

Founder of Duck Commander & Star of A&E's hit show "Duck Dynasty"

Danielle Colby-Cushman

TV Personality on "American Pickers" and Burlesque Dancer

Vinny Guadagnino

Reality TV Personality, Author & Actor, Known for "Jersey Shore"

Dave Navarro

Musician & Host of "Ink Master"; Best Known as a Member of Jane's Addiction & Former Member of Red Hot Chili Peppers

Beau MacMillan

Chef, TV Personality

Mondo Guerra

Fashion Designer & Advocate for HIV/AIDS Awareness

Erik Chopin

Winner of The Biggest Loser Season 3

Shawn Rene Zimmerman

International Fitness Cover Model & Fitness Champion

Graham Kerr

Although Graham Kerr is now an expert on nutrition and healthful eating, he's best known for his decadent cooking on The Galloping Gourmet, a classic show now airing on Food Network.

Jason Wahler

TV Personality, Known for "Laguna Beach" "The Hills" & "Celebrity Rehab", Recovery Advocate

Ethan Zohn

Winner of "Survivor" Africa, 2x Cancer Survivor, Stem Cell Transplant Recipient, Social Entrepreneur, Philanthropist, Cancer Research Advocate, Former Pro Soccer Player, Sports Broadcaster & TV Personality

Sam Talbot

Chef, Author & Television Personality

Robert Rose

Bob Rose is Founding Executive Director of the Breakthrough Technologies Institute, an independent nonprofit organization dedicated to promoting advanced environmental and energy technologies from the perspective of the public interest.

Matt Roloff

Star of "Little People, Big World"

Michael Phelps

Retired Professional Swimmer; Most Decorated Olympic Athlete in History

Kelly Osbourne

Fashion Designer, Singer & Actress; Former Contributor to E!'s "Fashion Police"; Daughter of Ozzy and Sharon Osbourne

Jack Osbourne

Reality TV Personality & Member of The Osborne Family; Multiple Sclerosis Survivor

Mike Myers

Actor & Comedian Known for Saturday Night Live, Austin Powers, and Shrek

Greg Louganis

4x Olympic Gold Medal Diver; LGBTQ Activist & Author

Jo Koy

Stand-Up Comedian & Regular on "Chelsea Lately"

Comedian Jo Koy to host the Golden Globe Awards - CBS News

Johnny Knoxville

Actor, Comedian, Screenwriter, Film Producer & Stunt Performer; Best Known for "Jackass"

Bob Harper

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

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

Dr. William Dorfman

When you mention cosmetic dentistry in Los Angeles, the first dentist that comes to mind is Dr. William Dorfman.

Danny Boome

Star of Food Network's "Rescue Chef"

Mark Ballas

Dancing with the Stars Champion & Mental Health Activist

Andre Agassi

Retired World No. 1 Tennis Player & International Tennis Hall of Famer; Olympic Gold Medalist, Entrepreneur & Philanthropist

Titus Schleyer

Director, Center for Biomedical Informatics Regenstrief Institute Inc.

Jase Wilson

Co-Founder & CEO at Ready.net; Co-Founder & Former CEO at Neighborly

Jase Wilson | TEDxKC

Jessie Pavelka

Fitness Expert; Former Television Host on NBC’s "The Biggest Loser"

Eileen Davidson

"Days of Our Lives" Star & Cast Member of "The Real Housewives of Beverly Hills"