A young boy is bored spending time with his dull grandma until he discovers she's an international Jewel thief.
| Actor | Role |
|---|---|
 Julia McKenzieGranny | Granny |
| RReece ButteryBen | Ben |
 David WalliamsMike | Mike |
 Miranda HartLinda | Linda |
 Rob BrydonMr Parker | Mr Parker |
 Joanna LumleyThe Queen | The Queen |
 Robbie WilliamsFlavio Flavoli | Flavio Flavoli |
 Harish PatelRaj | Raj |
 Claudia WinklemanHerself | Herself |
 Steve SpeirsPC McClintock | PC McClintock |
 Patrick BrennanBeefeater | Beefeater |
| GGeorge HillTerrence | Terrence |
 India Ria AmarteifioFlorence | Florence |
 Leo WringerDoctor Long | Doctor Long |
| TTim FrancesDoctor Edwards | Doctor Edwards |
| RRussell DixonJudge | Judge |
 Tim BentinckChief Inspector | Chief Inspector |
 Max OleskerPoliceman | Policeman |