After a night of drinking Guiness at the local watering hole, an ordinary, working-class, family man in Dublin's life is turned upside-down when he wakes up as a rat.
| Actor | Role |
|---|---|
 Imelda StauntonConchita Flynn | Conchita Flynn |
 Frank KellyUncle Matt | Uncle Matt |
 David WilmotPhelim Spratt | Phelim Spratt |
 Kerry CondonMarietta Flynn | Marietta Flynn |
| AAndrew LovernPius Flynn | Pius Flynn |
 Pete PostlethwaiteHubert Flynn | Hubert Flynn |
 Ed ByrneRudolph | Rudolph |
 Niall TóibínFather Geraldo | Father Geraldo |
 Geoffrey PalmerThe Doctor | The Doctor |
 Stanley TownsendNewsreader | Newsreader |
| JJamie McCormackKid | Kid |