| Celebrities compete to lose weight and get in shape. The celebrities take part in a range of physical and motivational activities designed to shed pounds, increase team spirit, and win prizes. In the end, they face the scales at a weigh-in ceremony where they are individually weighed in by a panel of experts. |
| Name | Character | Episodes |
|---|---|---|
| Ant | Self - Host | 57 |
| Sebastian Bach | Self - Contestant | 17 |
| Willie Aames | Self - Contestant | 16 |
| Tina Yothers | Self - Contestant | 16 |
| Dustin Diamond | Self - Contestant | 16 |
| Toccara Jones | Self - Contestant | 16 |
| Nicole Eggert | Self - Contestant | 9 |
| Shar Jackson | Self - Contestant | 9 |
| Bobby Brown | Self - Contestant | 9 |
| Kevin Federline | Self - Contestant | 9 |
| Kaycee Stroh | Self - Contestant | 9 |
| Gary Busey | Self - Contestant | 8 |
| Kelly LeBrock | Self - Contestant | 8 |
| Erika Eleniak | Self - Contestant | 8 |
| Maureen McCormick | Self - Contestant | 8 |
| Ralphie May | Self - Contestant | 8 |
| Daniel Baldwin | Self - Contestant | 8 |
| Nicholas Turturro | Self - Contestant | 8 |
| Vincent Pastore | Self - Contestant | 8 |
| Erin Moran | Self - Contestant | 8 |
| Phil Margera | Self - Contestant | 8 |
| Jeff Conaway | Self - Contestant | 8 |
| Joseph R. Gannascoli | Self - Contestant | 8 |
| Bruce Vilanch | Self - Contestant | 8 |
| Jackée Harry | Self - Contestant | 8 |
| Biz Markie | Self - Contestant | 8 |
| Ross Mathews | Self - Contestant | 8 |
| Mia Tyler | Self - Contestant | 8 |
| Da Brat | Self - Contestant | 8 |
| Victoria Jackson | Self - Contestant | 8 |
| Countess Vaughn | Self - Contestant | 8 |
| Kim Coles | Self - Contestant | 8 |
| Tempestt Bledsoe | Self - Contestant | 8 |
| Angie Stone | Self - Contestant | 8 |
| Warren G | Self - Contestant | 8 |
| Tiffany | Self - Contestant | 8 |
| Sommore | Self - Contestant | 8 |
| Carnie Wilson | Self - Contestant | 8 |
| Kimberley Locke | Self - Contestant | 8 |
| Marvin Young | Self - Contestant | 8 |
| A.J. Benza | Self - Contestant | 8 |
| Mablean Ephriam | Self - Contestant | 8 |