The Wolfman, Dracula and Frankenstein spy on a girls' school in the mountains, where most of the girls spend their time sunbathing in the nude, nude exercises and nude art classes. The monsters finally invade the school…
| Actor | Role |
|---|---|
| BBob CresseGranny Good | Granny Good |
| LLaine CarlinRuth | Ruth |
| LLeticia CooperBobbi | Bobbi |
| LLaura EdenPrudence Bumgartner | Prudence Bumgartner |
| CConnie HudsonAnnastasia | Annastasia |
| DDan HylandPolice Chief | Police Chief |
| WWilliam KirkMr. Bumgartner | Mr. Bumgartner |
| IIngrid LindMrs. Bumgartner | Mrs. Bumgartner |
| VVirginia MarkSandra | Sandra |
 Ann PerrySally | Sally |
| JJohn NadaInspector | Inspector |
| BBetty PetersSchoolgirl | Schoolgirl |
| LLaura SandersSchoolgirl | Schoolgirl |
| RRoc ShannonNot listed | Not listed |
| FFran SinatraNot listed | Not listed |
| MMillie StewartNot listed | Not listed |
| JJ.J. WatsonPoliceman | Policeman |
| AAngela WebsterHoney | Honey |
| WWarren AmesFrankenstein | Frankenstein |
| JJeffrey SmithersDracula | Dracula |
 William EngesserWolfman | Wolfman |
| MMonica LiljistrandParty Guest (uncredited) | Party Guest (uncredited) |
| JJames E. McLartyParty Guest in Sombrero (uncredited) | Party Guest in Sombrero (uncredited) |