A slick promoter in the bodybuilding subculture of Venice Beach, California, finds what he considers a diamond in the rough: a dedicated but somewhat mentally challenged young man who wants to win bodybuilding championships, but needs some help and direction--and the promoter thinks he's just the one to do it.
| Actor | Role |
|---|---|
 Richard HatchNick Demec | Nick Demec |
 Kay LenzJenny O'Rourke | Jenny O'Rourke |
 Jeanette NolanRose MacIntosh | Rose MacIntosh |
 Joe SantosBarry Layton | Barry Layton |
 Jack CarterMancuso | Mancuso |
 Veronica HamelSheila Dodge | Sheila Dodge |
 Kenneth McMillanJoseph Demec | Joseph Demec |
 Franco ColumbuSelf | Self |
| FFrank ZaneSelf | Self |
| TTim KimberTodd Nash | Todd Nash |
 Bobby VanEmcee | Emcee |
 Walter BurkePriest | Priest |
 Sam LawsStan | Stan |
 Paul BartelDirector | Director |
 Paul BryarUncle Sam | Uncle Sam |
| SSteve DavisKen Rock | Ken Rock |
 James HongDesk Clerk | Desk Clerk |
 Don HanmerCar Salesman | Car Salesman |
| PPaddy JeromeMr. Davidson | Mr. Davidson |
| LLarry JacobsSelf | Self |
| SStacy BentleySelf | Self |
| CClaude SternSelf | Self |
 Lisa LyonSelf | Self |
 Tom PlatzRobbie (uncredited) | Robbie (uncredited) |
 Tara StrohmeierTara | Tara |
 William S. TaylorBill (uncredited) | Bill (uncredited) |