VH1 has revealed the identities of the eight contestants competing on Celebrity Fit Club: Boot Camp, the sixth season of the reality weight-loss series, which is scheduled to premiere Thursday, March 13 at 9PM ET/PT.

Half of Celebrity Fit Club: Boot Camp's cast will consist of contestants who have previously participated in the series -- model and second-season contestant Toccara Jones; fellow second-season contestant and former Charles in Charge actor Willie Aames; former Family Ties actress and fourth-season contestant Tina Yothers; and former Saved by the Bell actor and fifth-season contestant Dustin Diamond.

Celebrity Fit Club: Boot Camp participants competing on the show for the first time are former Happy Days actress Erin Moran; comedian Sommore; former American Idol first-season co-host Brian Dunkleman; and former gossip columnist A.J. Benza.

Instead of casting obscenely overweight celebrities who need to shed a large amount of weight, Celebrity Fit Club: Boot Camp assembled a "leaner" group of contestants who only need to lose 10 to 20 pounds each. 

Similar to past seasons of Celebrity Fit Club, Boot Camp will see the cast divided into groups of four and compete in different physical challenges while working together to reach their own fitness goals.

The team that achieves the greatest "Fit Factor" -- a new The Biggest Loser-like measure that takes into account the loss of not just body weight, but also body fat -- will receive $150,000 in cash and prizes.

"Drill sergeant" Harvey Walden, nutritional and diet expert Dr. Ian Smith, psychotherapist, Dr. Stacy Kaiser and host Ant are all returning for the reality weight-loss competition's sixth season.

Celebrity Fit Club: Boot Camp is a production of Granada Entertainment and VH1.