 Benny HillHugo Dill | Hugo Dill |
 Belinda LeeFrankie Mayne | Frankie Mayne |
 David KossoffZacco | Zacco |
 Garry MarshDet. Inp. Hancock | Det. Inp. Hancock |
| GGeorge MargoBarakov | Barakov |
 Ernest ThesigerSir Walter | Sir Walter |
 Denis ShawProfessor Stumpf | Professor Stumpf |
 Frederick SchillerGruber | Gruber |
 Jeremy HawkHimself | Himself |
 Thorley WaltersRaymond Courtney | Raymond Courtney |
| PPhilip StaintonFrankie's Agent | Frankie's Agent |
| WWarwick AshtonPC Roberts | PC Roberts |
 Stratford JohnsPC Coleman | PC Coleman |
 Nicholas PhippsScientist | Scientist |
 Peter BullScientist | Scientist |
 Gibb McLaughlinScientist | Scientist |
| EErnest JayScientist | Scientist |
| HHarold ScottScientist | Scientist |
| NNorah BlaneyThe Actress | The Actress |
 Charles HawtreyDisc Jockey | Disc Jockey |
| DDagenham Girl PipersThemselves | Themselves |
| CChampion Appeline Hector of West SummerlandFabian | Fabian |
| JJohn AdamsDetective at Uralian Legation (uncredited) | Detective at Uralian Legation (uncredited) |
| CChris AdcockMan Entering Radio Show (uncredited) | Man Entering Radio Show (uncredited) |
 Terence AlexanderRadio Show Official (uncredited) | Radio Show Official (uncredited) |
| JJean AlsopIce Show Girl (uncredited) | Ice Show Girl (uncredited) |
| EElinor BennettIce Show Girl (uncredited) | Ice Show Girl (uncredited) |
| PPaul Beradi'Your Birthday Wish' Audience (uncredited) | 'Your Birthday Wish' Audience (uncredited) |
| JJohn BoxerPolice Sergeant at Uralian Legation (uncredited) | Police Sergeant at Uralian Legation (uncredited) |
 Ronnie BrodyShop Assistant (uncredited) | Shop Assistant (uncredited) |
