Humanoid killer robots stalk a newspaperman, who has knowledge of their existence. One of the robots is made to look like his girl friend.
| Actor | Role |
|---|---|
 Mark Lindsay ChapmanRichard Armour | Richard Armour |
 Susan BlakelyLayla | Layla |
 Lisa BlountCindy | Cindy |
 Brion JamesAlien Leader | Alien Leader |
 Earl BoenSid | Sid |
 Geoffrey LewisProf. Alan Jeffries | Prof. Alan Jeffries |
 Catherine Mary StewartAngela Taylor | Angela Taylor |
 Nicole EggertElyse Jeffries | Elyse Jeffries |
 Paul BrinegarPops | Pops |
 Barry PearlEddie | Eddie |
| BBarbara TownsendCelia Evans | Celia Evans |
 Channing ChaseSusan Weiss | Susan Weiss |
 Glen VernonHenry Evans | Henry Evans |
| RRichard PartlowFBI Agent #2 | FBI Agent #2 |
 Biff YeagerFBI Agent #1 | FBI Agent #1 |
 Toni AttellPatti | Patti |
| JJames R. ParkesPoliceman | Policeman |
 Rodger LaRueMan in Coat | Man in Coat |
 Stanley Bennett ClayCammie | Cammie |
 Greg CollinsPoliceman | Policeman |
| LLola FisherNervous Lady | Nervous Lady |
| RRobert BeaulieuNervous Man | Nervous Man |
 Al PuglieseAgent #2 | Agent #2 |
| MMartin ClarkCoroner | Coroner |
 John DurbinTrucker | Trucker |
| JJerry BoydAgent #1 | Agent #1 |
| HHelen AndersonFemale Airline Agent | Female Airline Agent |
| WWilliam Jackson Airline Supervisor | Airline Supervisor |
| GGary BurdenBum | Bum |
| JJulie HarrisGirl | Girl |