| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anatole de Grunwald | Crew | Writing | Writer |
 Anthony Asquith | Crew | Directing | Director |
 Bernard Knowles | Crew | Camera | Director of Photography |
 Bridget Boland | Crew | Writing | Story |
Gordon Wellesley | Crew | Writing | Story |
Leslie Murray | Crew | Sound | Sound |
Louis Golding | Crew | Writing | Story |
Reginald Beck | Crew | Editing | Editor |
 Roland Pertwee | Crew | Writing | Story |
Basil Woon | Crew | Writing | Writer |
Peggy McClafferty | Crew | Directing | Continuity |
 Abraham Sofaer | Cast | Actor | Heini |
 Ben Williams | Cast | Actor | Nagel - Radio Location Expert (uncredited) |
 Bernard Miles | Cast | Actor | Capt. Muller |
 Clifford Evans | Cast | Actor | Dressler |
 Clive Brook | Cast | Actor | Dr. Karl Roder |
 Derek Farr | Cast | Actor | Hans Glaser |
 Diana Wynyard | Cast | Actress | Irena Roder |
 Ernest Butcher | Cast | Actor | Chestnut Seller (uncredited) |
 Everley Gregg | Cast | Actress | Maria Tattenheim |
George Hayes | Cast | Policeman | |
 Gibb McLaughlin | Cast | Actor | Dr. Weiner |
 Hay Petrie | Cast | Actor | Sebastian |
 Howard Marion-Crawford | Cast | Actor | Kummer |
 Joan Hickson | Cast | Actress | Katie |
 John Penrose | Cast | Actor | Otto |
 Joyce Howard | Cast | Actress | Elly Schmidt |
 Katie Johnson | Cast | Actress | Granny Schmidt |
 Ken Annakin | Cast | Actor | Radio Announcer (voice) (uncredited) |
 Manning Whiley | Cast | Actor | S.S. Trooper |
 Marie Ault | Cast | Actress | Woman Customer |
 Martita Hunt | Cast | Actress | Frau Lehmann the Concierge |
Mike Johnson | Cast | Actor | Fritz - Fenner's Dresser (uncredited) |
 Morland Graham | Cast | Actor | Father Landbach |
 Muriel George | Cast | Actress | Hanna |
 Raymond Huntley | Cast | Actor | Rabenau |
 Reginald Beckwith | Cast | Actor | Emil Fenner |
 Ronald Squire | Cast | Actor | Rudolf Spiedler |
Victor Wood | Cast | (uncredited) | |
 William Hartnell | Cast | Actor | Radio Location Aerial Operator (uncredited) |
Bunty Payne | Cast | Erna | |
Wyndham Milligan | Cast | S.S. Guard | |
 Pat McGrath | Cast | Actress | Kurt |
| Person | Type | Job | Role(s) |
