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| Cast |
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| John Cummings | Richard TODD |
| Lionel Meadows | Peter SELLERS |
| Anne Cummings | Elizabeth SELLARS |
| Tommy Towers | Adam FAITH |
| Jackie | Carol WHITE |
| Alfie Barnes | Mervyn JOHNS |
| Inspector Thomas | Noel WILLMAN |
| Cliff | David LODGE |
| Alec Berger | Peter JONES |
| Mackinnon | John BAILEY |
| Regan | Nigel STOCK |
| Pennington | John Le MESURIER |
| station sergeant | John DUNBAR |
| Cyril Spink | Charles HOUSTON |
| Cypriot | Cyril SHAPS |
| manageress | Mignon O'DOHERTY |
| stores girl | Maureen CONNELL |
| Madge | Marianne STONE |
| Freddie | David GREGORY |
| Nick | Leon GARCIA |
| Pete | Alex MURRAY |
| Len | Larry MARTIN |
| typist | Dorothy GORDON |
| 2nd typist | Claire GORDON |
| orders clerk | James BREE |
| Mrs Hurst | Jan HOLDEN |
| police driver | Joe WADHAM |
| Martin Cummings | Peter PIKE |
| Sandra Cummings | Roberta TOVEY |
| plainclothesman | Gerald PARIS |
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| Credits |
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 |
| Directed by | John GUILLERMIN |
| Production Company | Independent Artists |
| Produced by | Peter de SARIGNY |
| Production Supervisor | Arthur ALCOTT |
| Cashier (uncredited) | Bernard SAUNDERS |
| Production Secretary (uncredited) | Joy MERCER |
| | Veronica LAWES |
| Assistant Director | Kip GOWANS |
| Assistant Director (2nd) (uncredited) | Ron JACKSON |
| Assistant Director (3rd) (uncredited) | John DANISCHEWSKY |
| Continuity | Susan DYSON |
| Screenplay by | Alun FALCONER |
| From a story by | John GUILLERMIN |
| | Peter de SARIGNY |
| Photographed by | Christopher CHALLIS |
| Camera Operator | Paul WILSON |
| Focus Puller (uncredited) | Mervyn WILSON |
| Clapper Loader (uncredited) | John DEATON |
| | Peter MacDONALD |
| Camera Maintenance (uncredited) | Les GRAY |
| Stills (uncredited) | Harry GILLARD |
| Film Editor | Ralph SHELDON |
| Assistant Editor (uncredited) | Pamela TOMLING |
| Assistant Editor (2nd) (uncredited) | Barry McCORMICK |
| Art Director | George PROVIS |
| Assistant Art Director (uncredited) | Eric SAW |
| Draughtsman (uncredited) | Tony RIMMINGTON |
| Scenic Artist (uncredited) | Ben HEALEY |
| Prop Buyer (uncredited) | George DURANT |
| Prop Master (uncredited) | Fred EAMES |
| Construction Manager (uncredited) | Ben ROBERTS |
| Wardrobe | Vi MURRAY |
| Wardrobe Assistant (uncredited) | Jimmy SMITH |
| Make-up | Trevor CROLE-REES |
| Assistant make-up (uncredited) | John WILCOX |
| Hair Stylist | Maud ONSLOW |
| Music Composed and Conducted by | John BARRY |
| Lyric by | John MAITLAND |
| Sound Recordist | Len PAGE |
| Sound Camera Operator (uncredited) | George RICE |
| Boom Operator (uncredited) | Ken REYNOLDS |
| Sound Maintenance (uncredited) | Frank SLOGGETT |
| Re-recording | Ken CAMERON |
| Dubbing Assistant (uncredited) | Jonathan BATES |
| Sound Editor | Lionel SELWYN |
| Publicity (uncredited) | John SOUTHWOOD |
| Unit Publicist (uncredited) | Ruth LIPTON |
| Publicity Secretary (uncredited) | Daphne WARD |
| Studio | Beaconsfield Studios |