Four bloodthirsty demons stow away on a truck belonging to the owners of a carnival attraction and, after arriving at the fairgrounds, hole up inside the ride, which becomes a sensation after patrons believe the creatures are part of the show.
| Actor | Role |
|---|---|
 Damon MartinLarry | Larry |
 Royal DanoUncle Ned | Uncle Ned |
 Phil FondacaroSir Nigel Pennyweight | Sir Nigel Pennyweight |
 J. DowningP. Hardin | P. Hardin |
 Kerry RemsenNicole | Nicole |
 Dale WyattDixie | Dixie |
 Jon PennellBobby | Bobby |
 Sasha JensonTeddy | Teddy |
 Starr AndreeffAlice | Alice |
 William ButlerMerle | Merle |
 Donnie JeffcoatEddie | Eddie |
 Mickey KnoxRay | Ray |
 Romano PuppoZampano | Zampano |
| CCarrie JanisseCarol | Carol |
 Donald HodsonBarker | Barker |
 Anthony DawsonPriest | Priest |
 Ettore MartiniShooting Gallery Owner | Shooting Gallery Owner |
 Michael DeakBozo | Bozo |
| FFiorella CencettiFat Lady | Fat Lady |
 Erminio Bianchi FasaniPark Worker (uncredited) | Park Worker (uncredited) |
 Sergio SilveriPark Worker (uncredited) | Park Worker (uncredited) |
 Paola CozzoPark Worker (uncredited) | Park Worker (uncredited) |
 Massimo CiprariPark Goer (uncredited) | Park Goer (uncredited) |