A mutated rat has been let loose in a city.
| Actor | Role |
|---|---|
 Ricardo FreitasAllen Marsh | Allen Marsh |
 Amanda-Jade TylerDr Linda Rowe | Dr Linda Rowe |
 Andrew RolfeSergeant McKenna | Sergeant McKenna |
 Megan PurvisSergeant Chambers | Sergeant Chambers |
 Abi Casson ThompsonJulie Smith | Julie Smith |
 Jamie RobertsonInspector Norton | Inspector Norton |
| JJodie BennetJenna | Jenna |
 Derek NelsonRat | Rat |
 Mya BrownSuzy | Suzy |
 Nick DananPeter | Peter |
| BBrendan JonesRob | Rob |
 Barbara DabsonNews Reporter | News Reporter |
 Sarah T. CohenTara | Tara |
 Zoe PurdyHannah | Hannah |
 Kathi deCoutoTina | Tina |
| AAilís SmithMonica | Monica |
 Tom TaplinJay | Jay |
 Rob MarshallPoliceman | Policeman |