 | Eric Portman als Lee Warren |
 | Greta Gynt als Vivien Warren |
 | Dennis Price als Richard Fenton |
 | Jack Warner als Inspector Penbury |
 | Maxwell Reed als Jimmy Martin |
 | Hazel Court als Avis Fenton |
 | Jane Hylton als Rita |
 | Andrew Crawford als Sergeant Fox |
 | Charles Rolfe als Prison Warden |
| Hélène Burls als Charwoman |
 | Ernest Butcher als Hall Porter |
| Judith Carol als American Secretary |
| Valerie Ward als Warren's Secretary |
 | John Blythe als Ernie |
 | Howard Douglas als Doctor |
| Gerald Case als Second Doctor (Uncredited) |
| Victor Hagan als American Barman (Uncredited) |
| St. John Legh Clowes | Theatre Play |
| Peter Rogers | Screenplay |
| Sydney Box | Screenplay |
| Arthur Crabtree | Director |
| Stephen Dade | Director of Photography |
| Benjamin Frankel | Original Music Composer |
| Betty E. Box | Producer |
| Muriel Box | Screenplay |
| Gordon Hales | Editor |
| Sydney Box | Executive Producer |
| John Elphick | Art Direction |
| Yvonne Caffin | Costume Design |
| Len Garde | Makeup Artist |
| Fred Gunn | Production Manager |
| Alf Keating | Assistant Director |
| Bert Batt | Third Assistant Director |
| Hal Griver | Second Assistant Director |
| George Provis | Supervising Art Director |
| Ernest Archer | Draughtsman |
| Harry White | Draughtsman |
| Richard Bird | Sound Recordist |
| M. Hobbs | Sound Recordist |
| B. C. Sewell | Sound Supervisor |
| Kitty Spreckley | Sound Editor |
| Dudley Lovell | Camera Operator |
| Alan Gatward | Clapper Loader |
| Cedric Haine | Still Photographer |
| Len Newson | Focus Puller |
| Manny Yospa | Focus Puller |
| Geoffrey Botterill | Assistant Editor |
| Billy Asher | Location Manager |
| Muir Mathieson | Conductor |
| Winifred Dyer | Continuity |
| Betty Callaghan | Publicist |
| Antony Darnborough | Producer's Assistant |
| J. Arthur Rank | Presenter |
