A small town infestation of crawling alien foreheads that begin attaching to people and taking them over collides with a scientist's experiments to extract foreheadazine and things go horribly horribly wrong.
| Actor | Role |
|---|---|
 Daniel RoebuckAmos | Amos |
 Susan McConnellSarah | Sarah |
 Fay MastersonDr. Sheila Bexter | Dr. Sheila Bexter |
 Andrew ParksDr. Philip Latham | Dr. Philip Latham |
 H.M. WynantDr. Applethorpe | Dr. Applethorpe |
 Brian HoweBig Dan Frater | Big Dan Frater |
 Jennifer BlaireDroxy Chappelle | Droxy Chappelle |
 Dick MillerEddie | Eddie |
 Dan ConroyDutch "The Swede" Annacrombie | Dutch "The Swede" Annacrombie |
 Alison MartinMillie Healey | Millie Healey |
 Trish GeigerMary Latham | Mary Latham |
 Larry BlamireNick Vassidine | Nick Vassidine |
 Robert DeveauChief Bartnett | Chief Bartnett |
 Betty GarrettMrs. Cuttle | Mrs. Cuttle |
 James KarenReverend Beaks | Reverend Beaks |
 Kevin McCarthyLatecomer | Latecomer |