 Tony FadilPS Sean Cooper | PS Sean Cooper |
| EElliot CablePC Bruce Brody | PC Bruce Brody |
 Mark WingettBob | Bob |
 Sonera AngelKatie | Katie |
| CChris MonkDan | Dan |
| KKit PascoeEllen | Ellen |
 Primrose BigwoodJudith | Judith |
 Rad BrownSmart Alien Creature | Smart Alien Creature |
 Jimmy 'The Bee' BennettBilly / Extra Alien Creature #1 | Billy / Extra Alien Creature #1 |
 Michelle ArcherPolice Controller | Police Controller |
| SSilas WelchRunning Alien Creature | Running Alien Creature |
| JJake TavinerEating Alien Creature | Eating Alien Creature |
| CCan SomerChasing Alien Creature | Chasing Alien Creature |
| AAnastasia CaneLead Alien Creature | Lead Alien Creature |
| WWill PryorBath Alien Creature | Bath Alien Creature |
| DDebbie TarrierPatrice | Patrice |
| PPaul DursoBoxing Alien Creature | Boxing Alien Creature |
| LLxa LynchExtra Alien Creature #2 | Extra Alien Creature #2 |
 Steven M. SmithCrawling Alien Creature | Crawling Alien Creature |
| NNicholas TavinerConstruction Alien Creature #1 | Construction Alien Creature #1 |
| JJeremy TavinerConstruction Alien Creature #2 | Construction Alien Creature #2 |
| KKim TavinerPlumber Girl Alien Creature | Plumber Girl Alien Creature |
| JJim RuelAlien Creature #1 | Alien Creature #1 |
| SSophia BlakeAlien Creature #2 | Alien Creature #2 |
| CCraig BlavicsAlien Creature #3 | Alien Creature #3 |
| FFiona FisherAlien Creature #4 | Alien Creature #4 |
| FFlorence DayAlien Creature #5 | Alien Creature #5 |
| SSarah PriceAlien Creature #6 | Alien Creature #6 |
| BBayley DrewAlien Creature #7 | Alien Creature #7 |
| MMartin JacksonAlien Creature #8 | Alien Creature #8 |
