 | Anny Ondra als Alice White |
 | Sara Allgood als Mrs. White |
 | Charles Paton als Mr. White |
 | John Longden als Detective Frank Webber |
 | Donald Calthrop als Tracy |
 | Cyril Ritchard als The Artist |
 | Hannah Jones als The Landlady |
 | Harvey Braban als The Chief Inspector |
 | Ex-Det. Sergt. Bishop als The Detective Sergeant |
 | Alfred Hitchcock als Man on Subway (uncredited) |
| Alfred Hitchcock | Screenplay |
| Alfred Hitchcock | Director |
| Charles Bennett | Theatre Play |
| Hubert Bath | Music Arranger |
| Benn W. Levy | Dialogue |
| Jack E. Cox | Director of Photography |
| Emile de Ruelle | Editor |
| C. Wilfred Arnold | Art Direction |
| John Reynders | Conductor |
| Frank Mills | Assistant Director |
| Jimmy Campbell | Original Music Composer |
| Reginald Connelly | Original Music Composer |
| Harry Stafford | Music Arranger |
