| Person | Type | Job | Role(s) |
|---|---|---|---|
 Adolph Deutsch | Crew | Sound | Original Music Composer |
 Arthur Edeson | Crew | Camera | Director of Photography |
 Eric Ambler | Crew | Writing | Novel |
 Frank Gruber | Crew | Writing | Screenplay |
Frederick Richards | Crew | Editing | Editor |
 Henry Blanke | Crew | Production | Producer |
Herschel Daugherty | Crew | Crew | Dialogue Coach |
 Jack L. Warner | Crew | Production | Executive Producer, Presenter |
Jack Sullivan | Crew | Directing | Assistant Director |
 Jean Negulesco | Crew | Directing | Director |
Jerome Moross | Crew | Sound | Orchestrator |
 Leo F. Forbstein | Crew | Sound | Music Director |
Oliver S. Garretson | Crew | Sound | Sound |
Perc Westmore | Crew | Costume & Make-Up | Makeup Artist |
Ted Smith | Crew | Art | Art Direction |
Walter F. Tilford | Crew | Art | Set Decoration |
Louanne Hogan | Crew | Sound | Musician |
Julius Klein | Crew | Sound | Musician |
Michael D. Kadri | Crew | Crew | Technical Advisor |
Adolf E. Licho | Cast | Bulgarian Café Proprietor (uncredited) | |
Albert Van Antwerp | Cast | Bulgarian Landlord (uncredited) | |
Alfred Paix | Cast | Card Player (uncredited) | |
 Alphonse Martell | Cast | Actor | Roulette Croupier (uncredited) |
Antonio Filauri | Cast | Actor | Man Across Table (uncredited) |
Carl Deloro | Cast | Minor Role (uncredited) | |
 Carl M. Leviness | Cast | Actor | Casino Patron (uncredited) |
Carl Neubert | Cast | Druhar's Secretary (uncredited) | |
 Carmen D'Antonio | Cast | Actress | Nightclub Dancer (uncredited) |
Charles Andre | Cast | Actor | French Train Conductor (uncredited) |
Count Stefenelli | Cast | Party Guest (uncredited) | |
 David Hoffman | Cast | Konrad | |
 Dick Gordon | Cast | Actor | Nightclub Patron (uncredited) |
Eddie Fields | Cast | Train Conductor (uncredited) | |
 Eduardo Ciannelli | Cast | Actor | Marukakis (as Edward Ciannelli) |
 Edward Biby | Cast | Actor | Nightclub Patron (uncredited) |
 Faye Emerson | Cast | Actress | Irana Preveza |
 Felix Basch | Cast | Actor | Vazoff (uncredited) |
 Florence Bates | Cast | Actress | Madame Elise Chavez |
 Frank Lackteen | Cast | Actor | Turkish Soldier (uncredited) |
 Fred Essler | Cast | Actor | Mr. Bostoff (uncredited) |
 Georges Metaxa | Cast | Actor | Hans Werner |
 Georges Renavent | Cast | Actor | Fisherman (uncredited) |
 Gino Corrado | Cast | Actor | Man at Grudek's Restaurant Table (uncredited) |
Gregory Golubeff | Cast | Yugoslav Doorkeeper (uncredited) | |
 Helen Dickson | Cast | Actress | Casino Patron (uncredited) |
Jack Chefe | Cast | Actor | Casino Patron (uncredited) |
James Carlisle | Cast | Actor | Nightclub Patron (uncredited) |
Joe Gilbert | Cast | Actor | Casino Patron (uncredited) |
 John Abbott | Cast | Actor | Mr. Pappas |
 John Bleifer | Cast | Actor | Coach Driver (uncredited) |
 John Mylong | Cast | Actor | Druhar (uncredited) |
 Kurt Katch | Cast | Actor | Colonel Haki |
 Lal Chand Mehra | Cast | Actor | Turkish Servant (uncredited) |
 Leonid Snegoff | Cast | Actor | Stambulisky (uncredited) |
Lotte Palfi Andor | Cast | Actress | Yugoslav Receptionist (uncredited) |
 Louis Mercier | Cast | Actor | Bulgarian Policeman (uncredited) |
 Marek Windheim | Cast | Actor | Hotel Clerk in Paris (uncredited) |
 Marjorie Hoshelle | Cast | Actress | Anna Bulic |
 Michael Visaroff | Cast | Actor | Bulgarian Policeman (uncredited) |
 Monte Blue | Cast | Actor | Abdul Dhris |
 Nick Thompson | Cast | Actor | Porter on Train (uncredited) |
Nino Pipitone | Cast | Actor | Hotel Clerk in Istanbul (uncredited) |
 Pedro Regas | Cast | Actor | Turkish Morgue Attendant (uncredited) |
 Peter Lorre | Cast | Actor | Cornelius Leyden |
Robert Robinson | Cast | Actor | |
 Sam Harris | Cast | Actor | |
Sid Troy | Cast | Police Officer (uncredited) | |
 Sol Gorss | Cast | Actor | Man Shadowing Peters and Leyden (uncredited) |
 Steven Geray | Cast | Actor | Karel Bulic |
 Stuart Holmes | Cast | Actor | Casino Patron (uncredited) |
 Sydney Greenstreet | Cast | Actor | Mr. Peters |
Ted Billings | Cast | Actor | Bar Patron (uncredited) |
 Victor Francen | Cast | Actor | Wladislaw Grudek |
 Vince Barnett | Cast | Actor | Card Game Kibitzer (uncredited) |
 Zachary Scott | Cast | Actor | Dimitrios Makropoulos |
 Sol Murgi | Cast | Casino Patron (uncredited) | |
Ray De Ravenne | Cast | French Taxi Driver (uncredited) | |
Peter Helmers | Cast | Reporter (uncredited) | |
Hella Crossley | Cast | Bulgarian Hostess (uncredited) | |
Mary Landa | Cast | Flower Girl (uncredited) | |
Jose Portugal | Cast | Casino Patron (uncredited) | |
Eddie Hyans | Cast | Turkish Man (uncredited) | |
Tom Ferrandini | Cast | Nightclub Patron (uncredited) | |
Marion Gray | Cast | Nightclub Patron (uncredited) | |
Phillip Rock | Cast | Boy on Beach (uncredited) | |
Rola Stewart | Cast | Girl on Beach (uncredited) | |
Walter Palm | Cast | Butler (uncredited) | |
Rita Holland | Cast | Girl on Beach (uncredited) | |
Jules Molnar | Cast | Servant with Tray (uncredited) | |
| Person | Type | Job | Role(s) |
