 | Carole Lombard als Maria Tura |
 | Jack Benny als Joseph Tura |
 | Robert Stack als Lieut. Stanislav Sobinski |
 | Felix Bressart als Greenberg |
 | Lionel Atwill als Rawitch |
 | Stanley Ridges als Professor Alexander Siletsky |
 | Sig Ruman als Col. Ehrhardt |
 | Tom Dugan als Bronski |
 | Charles Halton als Producer Dobosh |
 | George Lynn als Actor-Adjutant |
 | Henry Victor als Capt. Schultz |
 | Maude Eburne als Anna |
 | Halliwell Hobbes als Gen. Armstrong |
 | Miles Mander als Major Cunningham |
 | Rudolph Anders als Gestapo Sergeant at Desk at Top of Hotel Stairs (uncredited) |
 | Paul Barrett als Polish RAF Pilot (uncredited) |
 | Sven Hugo Borg als German Soldier (uncredited) |
| Danny Borzage als Member of Audience at Performance of Hamlet (uncredited) |
 | Buster Brodie als Townsman (uncredited) |
| Peter Caldwell als Wilhelm Kunze (uncredited) |
 | Alec Craig als Scottish Farmer Without Mustache (uncredited) |
 | Helmut Dantine als Co-Pilot (uncredited) |
| Jack Deery als Member of Audience at Performance of Hamlet (uncredited) |
| Leslie Denison als Captain (uncredited) |
 | James Finlayson als Scottish Farmer with Mustache (uncredited) |
| James Gillette als Polish RAF Pilot (uncredited) |
| Stuart Hall als Member of Audience at Performance of Hamlet (uncredited) |
 | Leyland Hodgson als Second Reporter (uncredited) |
 | Shep Houghton als German Soldier (uncredited) |
 | Olaf Hytten als Polonius in Warsaw (uncredited) |
 | Charles Irwin als Reporter (uncredited) |
| Tiny Jones als Townswoman (uncredited) |
 | John Kellogg als Polish RAF Flyer (uncredited) |
| Adolf E. Licho als Prompter (uncredited) |
 | Wilbur Mack als Member of Audience at Performance of Hamlet (uncredited) |
| John Meredith als English Wireless Operator (uncredited) |
 | Maurice Murphy als Polish RAF Pilot (uncredited) |
 | Richard Neill als Warsaw Bystander (uncredited) |
| Russ Powell als Warsaw Bystander (uncredited) |
 | Frank Reicher als Polish Official (uncredited) |
 | Otto Reichow als Co-Pilot (uncredited) |
 | Gene Rizzi als Polish RAF Pilot (uncredited) |
| John Roy als Member of Audience at Performance of Hamlet (uncredited) |
| Hans Schumm als Special Investigations Squad (uncredited) |
| Stephen Soldi als Warsaw Bystander (uncredited) |
| Count Stefenelli als Member of Audience at Performance of Hamlet (uncredited) |
 | Roland Varno als Pilot (uncredited) |
 | Ernö Verebes als Stage Manager (uncredited) |
 | Dorothy Vernon als Member of Audience at Performance of Hamlet (uncredited) |
| Armand 'Curly' Wright als Makeup Man (uncredited) |
 | Wolfgang Zilzer als Man in Bookstore (uncredited) |
| Werner R. Heymann | Original Music Composer |
| Ernst Lubitsch | Producer |
| Rudolph Maté | Director of Photography |
| Ernst Lubitsch | Director |
| Irene | Costume Design |
| Dorothy Spencer | Editor |
| Walter Mayo | Production Manager |
| William Tummel | Assistant Director |
| Gordon Bau | Makeup Artist |
| Frank Maher | Sound |
| William McGarry | Assistant Director |
| Lawrence W. Butler | Special Effects |
| Vincent Korda | Production Design |
| Edwin Justus Mayer | Screenplay |
| Ryszard Ordyński | Technical Supervisor |
| Victor Sutker | Casting Director |
| J. McMillan Johnson | Assistant Art Director |
| Alexander Korda | Executive Producer |
| Melchior Lengyel | Story |
| Julia Heron | Set Decoration |
