Monty is a young cute rat in a rat world living beneath the streeets of Manhattan. When exterminator Dollart gets a new lethal spray to kill all the rodents, Monty, his friend Isabella and Jean-Paul Canalligator have to travel to magic land to make things right.
| Actor | Role |
|---|---|
 Josef OstendorfLou Dollart | Lou Dollart |
 Beverly D'AngeloMrs. Dollart | Mrs. Dollart |
 Jerry StillerProf. Plumpingham | Prof. Plumpingham |
 Lauren HuttonGaleristin Jellybelly | Galeristin Jellybelly |
 Steffen WinkNick McRafferty | Nick McRafferty |
| DDonald ArthurJean-Paul Canalligator | Jean-Paul Canalligator |
 Dee Bradley BakerMonty Mad-Rat Jr. (voice) | Monty Mad-Rat Jr. (voice) |
 Lynsey BartilsonIsabella Noble-Rat (voice) | Isabella Noble-Rat (voice) |
| YYoshinori YamamotoMr. Futon San | Mr. Futon San |
 Philipp MoogMonty Spinnerratz | Monty Spinnerratz |
| CCarmen PlateIsabella Nobelratz | Isabella Nobelratz |
 Klaus HavensteinMonty Senior | Monty Senior |
 Gudo HoegelRudi Raffratz | Rudi Raffratz |
| JJonathan KinslerArchitect Stressback | Architect Stressback |
| AAndreas HerderTom O'Dooley | Tom O'Dooley |
 Hans-Joachim RecknitzMr. Adams | Mr. Adams |
 Natja BrunckhorstMrs. Lucy | Mrs. Lucy |
| KKlaus HerzogGallery Customer | Gallery Customer |
 Friedrich SchoenfelderWalter Demokratz | Walter Demokratz |
 Harald LeipnitzFinanzminister Erwin Geizratz | Finanzminister Erwin Geizratz |