| Person | Type | Job | Role(s) |
|---|---|---|---|
 Andrej Andrejew | Crew | Art | Settings |
 Arthur Wimperis | Crew | Writing | Dialogue, Scenario Writer |
Ferdinand Bellan | Crew | Art | Set Designer |
 Georges Périnal | Crew | Camera | Director of Photography |
 Harry Stradling Sr. | Crew | Camera | Director of Photography |
Hugh Stewart | Crew | Editing | Editor |
 Lajos Biró | Crew | Writing | Screenplay |
René Hubert | Crew | Costume & Make-Up | Costume Design |
 Richard Addinsell | Crew | Sound | Original Music Composer |
 Victor Saville | Crew | Directing | Director, Producer |
 Anthony Bushell | Cast | Actor | Bob Carter |
Anthony Holles | Cast | Actor | Dutchman |
 Austin Trevor | Cast | Actor | Dr. Muller |
 Cecil Parker | Cast | Actor | Captain Of Q-Boat |
 Charles Carson | Cast | Actor | Head of Fifth Bureau |
 Conrad Veidt | Cast | Actor | Baron Karl Von Marwitz |
 Edmund Willard | Cast | Actor | General Berlin of German Intelligence |
 Eliot Makeham | Cast | Actor | Anatole Bergen |
 Henry Oscar | Cast | Actor | Swedish Magistrate |
 Joan Gardner | Cast | Actress | Lupita |
Laidman Browne | Cast | Rugge | |
 Laurence Hanray | Cast | Actor | Cottin |
Margery Pickard | Cast | Colette | |
 Michael Martin Harvey | Cast | Actor | Bohlan |
Percy Walsh | Cast | Actor | Captain of Swedish Packet |
 Philip Ray | Cast | Actor | Faber |
 Reginald Tate | Cast | Actor | Mate of Q-Boat |
 Robert Newton | Cast | Actor | Officer of U-Boat |
Sam Livesey | Cast | Actor | Major Schaeffer |
 Ursula Jeans | Cast | Actress | Gertrude |
 Vivien Leigh | Cast | Actress | Madeleine Goddard |
 William Dewhurst | Cast | Actor | The Killer |
| Person | Type | Job | Role(s) |
