 John GarfieldDr. Michael 'Mike' Lewis | Dr. Michael 'Mike' Lewis |
 Nancy ColemanJane Graystone | Jane Graystone |
 Raymond MasseyDr. Ingersoll | Dr. Ingersoll |
 Lee PatrickHead Nurse Johnson | Head Nurse Johnson |
 Moroni OlsenMr. John Goodwin | Mr. John Goodwin |
 Esther DaleDawson, Goodwin's Housekeeper | Dawson, Goodwin's Housekeeper |
 John RidgelyJohn, Nazi Henchman | John, Nazi Henchman |
 Christian RubMr. Steiner | Mr. Steiner |
 Frank ReicherJarvis, Goodwin's Butler | Jarvis, Goodwin's Butler |
 Ben WeldenEddie, Nazi Henchman | Eddie, Nazi Henchman |
 Cliff ClarkSheriff John Dill | Sheriff John Dill |
 Roland DrewDr. Murdock | Dr. Murdock |
 Arthur AylesworthGate Keeper | Gate Keeper |
 John HarmonGeorge, Taxi Driver | George, Taxi Driver |
 Gavin MuirCapt. Strong | Capt. Strong |
 Ilka GrüningMrs. Steiner | Mrs. Steiner |
 Frank M. ThomasRalph Bryan | Ralph Bryan |
 James SeayCarl | Carl |
 Murray AlperMiller, Psychopathic Ward Guard (uncredited) | Miller, Psychopathic Ward Guard (uncredited) |
 Tod AndrewsDr. Craig, Psychopathic Ward Intern (uncredited) | Dr. Craig, Psychopathic Ward Intern (uncredited) |
 Leah BairdFake Telephone Operator (uncredited) | Fake Telephone Operator (uncredited) |
 Sven Hugo BorgU-Boat Under Officer (uncredited) | U-Boat Under Officer (uncredited) |
 Sidney BraceySidewalk Onlooker (uncredited) | Sidewalk Onlooker (uncredited) |
| LLeslie DenisonFlight Lieutenant Tyler (uncredited) | Flight Lieutenant Tyler (uncredited) |
 Charles DrakeJoe, Hospital Orderly with Dr. Murdock (uncredited) | Joe, Hospital Orderly with Dr. Murdock (uncredited) |
| AAnn EdmondsBritish Export Bureau Secretary (uncredited) | British Export Bureau Secretary (uncredited) |
 Sol GorssJohn's Driver Following Jane (uncredited) | John's Driver Following Jane (uncredited) |
| EEddie GrahamHospital Elevator Operator (uncredited) | Hospital Elevator Operator (uncredited) |
 Chuck HamiltonPoliceman at Accident (uncredited) | Policeman at Accident (uncredited) |
| MMarijo JamesHospital Reception Nurse (uncredited) | Hospital Reception Nurse (uncredited) |
