ಪಾತ್ರವರ್ಗ ಮತ್ತು ಸಿಬ್ಬಂದಿ
-
Boris KarloffDr. John Garth - Evelyn KeyesMartha Garth
- Bruce BennettDr. Paul Ames
- Kenneth MacDonaldAnson, Prison Guard
- Edward Van SloanDr. Ralph Howard
- Ben TaggartWarden Thompson
- Pedro de CordobaVictor Sondini
- Wright KramerGeorge Wharton
- Bertram MarburghStephen Barclay
- Nick Grindeನಿರ್ದೇಶಕ
- Robert Hardy Andrewsಬರಹಗಾರ