| Person | Type | Job | Role(s) |
|---|---|---|---|
 Allen G. Siegler | Crew | Camera | Director of Photography |
Arthur Strawn | Crew | Writing | Story, Screenplay |
 Edward Bernds | Crew | Sound | Sound |
Fayte M. Browne | Crew | Camera | Camera Operator |
Gert Andersen | Crew | Camera | Assistant Camera |
Henry Myers | Crew | Writing | Screenplay |
Jack Cosgrove | Crew | Visual Effects | Matte Painter |
 Louis Silvers | Crew | Sound | Music |
Milan Roder | Crew | Sound | Music |
R. H. Bassett | Crew | Sound | Music |
Richard Cahoon | Crew | Editing | Editor |
 Roy William Neill | Crew | Directing | Director |
Stephen Goosson | Crew | Art | Art Direction |
Murray Mayer | Crew | Costume & Make-Up | Costume Design |
 Boris Karloff | Cast | Actor | Baron Gregor de Berghman / Anton de Berghman |
 Colin Tapley | Cast | Actor | Paul Hassel as a young lieutenant |
 Edward Van Sloan | Cast | Actor | Doctor |
 George MacQuarrie | Cast | Actor | The Judge |
 Henry Kolker | Cast | Actor | Baron de Berghman |
 John Bleifer | Cast | Actor | Franz - Captured Assassin-Villager (uncredited) |
 John Buckler | Cast | Actor | Beran - the gypsy |
 John George | Cast | Actor | Inn Waiter (uncredited) |
 Katherine DeMille | Cast | Actress | Mashka |
 Marian Marsh | Cast | Actress | Thea Hassel |
 Marion Lessing | Cast | Maria the Chambermaid | |
 Robert Allen | Cast | Actor | Lt. Albert Lussan |
 Robert Middlemass | Cast | Actor | The Prosecutor |
 Thurston Hall | Cast | Actor | Col. Paul Hassel |
 Torben Meyer | Cast | Actor | Peter, the majordomo |
| Person | Type | Job | Role(s) |
