Tony's father Sam, abducted by aliens three years earlier, returns to earth and seeks out his wife and son, but Rachel has since been living with Joe and the reunion is awkward. Joe doesn't trust Sam, and Rachel can't quite decide what her feelings are for her two men. Sam is not the same as when he left, and he begins affecting Tony in frightening ways.
| Actor | Role |
|---|---|
 Philip SayerSam Philips | Sam Philips |
 Bernice StegersRachel Philips | Rachel Philips |
 Danny BraininJoe Daniels | Joe Daniels |
 Maryam D'AboAnalise Mercier | Analise Mercier |
| SSimon NashTony Phillips | Tony Phillips |
 Peter MandellClown | Clown |
 David CardyMichael | Michael |
 Anna WingMrs. Goodman | Mrs. Goodman |
 Robert FyfeDoctor | Doctor |
| KKatherine BestJane | Jane |
| RRobert PerenoBen | Ben |
| SSean CrawfordCommando | Commando |
| TTim DryMonster | Monster |
 Susie SilveyWoman in Cottage | Woman in Cottage |
 Arthur WhybrowMr. Knight | Mr. Knight |
| AAnna MottramTeacher | Teacher |
| RRobert AustinVan Driver | Van Driver |
 Vanya SeagerPaula Phillips | Paula Phillips |
 Kevin AllenJoe’s Assistant (uncredited) | Joe’s Assistant (uncredited) |