Cast & Crew
-
Boris KarloffDr. Janos Rukh - Bela LugosiDr. Felix Benet
- Frances DrakeDiane Rukh
- Frank LawtonRonald Drake
- Violet Kemble CooperMother Rukh
- Walter KingsfordSir Francis Stevens
- Beulah BondiLady Arabella Stevens
- Frank ReicherProfessor Meiklejohn
- Paul WeigelMonsieur Noyer
- Georges RenaventChief of the Surete
- Lambert HillyerDirector
- Edmund GraingerProducer
- Fred S. MeyerProducer
- John ColtonWriter