Cast & crew
Behind the Mask (1932)
Directed by John Francis Dillon Written by Jo Swerling
Cast
| Jack Holt | Jack Hart aka Quinn |
| Claude King | Arnold |
| Bertha Mann | Nurse Edwards |
| Constance Cummings | Julie Arnold |
| Boris Karloff | Jim Henderson |
| Jessie Arnold | Eastland Hospital Nurse |
| Willard Robertson | Capt. E.J. Hawkes |
| Martha Mattox | Hotel Ansonia Maid |
| Edward Van Sloan | Dr. August Steiner / Dr. Alec Munsell / Mr. X |
| Thomas E. Jackson | Agent Burke |
| Harry Tenbrook | Man in Black / Henchman in Boat |
Crew
| John Francis Dillon | Director |
| Jo Swerling | Writer |
| Jo Swerling | Story |
| Ted Tetzlaff | Director of Photography |
| Edward Sloman | Assistant Director |
| Harry Cohn | Producer |
| Otis Garrett | Editor |