Directed by
| Lew Landers | ||
Writing Credits
| Robert Lee Johnson | ... | (original screenplay) |
Cast (in credits order) complete, awaiting verification
| Bruce Bennett | ... | Capt. Morgan | |
| Virginia Field | ... | Lida Adams | |
| John Beal | ... | Carl Hansen | |
| Clifford Severn | ... | Sandy Brown | |
| Larry Parks | ... | Gregory | |
| Lloyd Bridges | ... | Bert | |
| Victor Kilian | ... | Otto | |
| Hans Schumm | ... | Cmdr. von Smith | |
| Erik Rolf | ... | Gunther | |
 |
Eddie Laughton | ... | Radio Operator |
| Wilhelm von Brincken | ... | U-Boat Officer (as William Vonn) | |
| Rest of cast listed alphabetically: | |||
| Stanley Brown | ... | Sailor (uncredited) | |
Produced by
| Colbert Clark | ... | producer |
Cinematography by
| Henry Freulich | ||
Editing by
| James Sweeney | ||
Art Direction by
| Lionel Banks | ||
Second Unit Director or Assistant Director
| Seymour Friedman | ... | assistant director |
Art Department
| Jerome Pycha Jr. | ... | associate art director |
Sound Department
| Charles Althouse | ... | sound engineer |
Stunts
| Eddie Parker | ... | stunts (uncredited) |
Music Department
| Morris Stoloff | ... | musical director (as M.W. Stoloff) |
| Gerard Carbonara | ... | composer: stock music (uncredited) |
| Sidney Cutner | ... | composer: stock music (uncredited) |
| John Leipold | ... | composer: stock music (uncredited) |
| Karol Rathaus | ... | composer: stock music (uncredited) |
