Directed by
| Alfred Hitchcock | ||
Writing Credits
| Dale Collins | ... | (novel) |
| Alfred Hitchcock | ... | (adaptation) |
| Alma Reville | ||
| Val Valentine | ||
Cast (in credits order) verified as complete
| Henry Kendall | ... | Fred Hill | |
| Joan Barry | ... | Emily Hill | |
| Percy Marmont | ... | Commander Gordon | |
| Betty Amann | ... | The Princess | |
| Elsie Randolph | ... | The Old Maid | |
| Rest of cast listed alphabetically: | |||
 |
Arty Ash | ... | Ship Steward (uncredited) |
| Aubrey Dexter | ... | Colonel (uncredited) | |
| Hannah Jones | ... | Mrs. Porter (uncredited) | |
| Bill Shine | ... | Man Eating on London Underground (uncredited) | |
Produced by
| John Maxwell | ... | producer |
Music by
| Adolph Hallis | ... | (as Hal Dolphe) |
Cinematography by
| Jack E. Cox | ... | (as John Cox) |
| Charles Martin | ||
Editing by
| Winifred Cooper | ||
| Rene Marrison | ||
Art Direction by
| C. Wilfred Arnold | ||
Second Unit Director or Assistant Director
| Frank Mills | ... | assistant director |
Sound Department
| Alec Murray | ... | sound recordist |
Camera and Electrical Department
| Bryan Langley | ... | assistant camera (uncredited) |
Music Department
| John Reynders | ... | musical director |
