演员阵容
Bela Lugosi
Dr. Melcher/ Monsieur ColombClayton Moore
FBI Agent Richard ‘Dick’ MartinJoan Barclay
Alice SaundersGeorge Pembroke
Dr. William SaundersRobert Frazer
Amos HanlinRobert Fiske
Phillip WallaceIrving Mitchell
John Van DykeEdward Peil Sr.
RyderKenneth Harlan
FBI Chief ColtonMax Hoffman Jr.
KearneyJoseph Eggenton
StevensI. Stanford Jolley
The DragonFrank Melton
FBI Agent艺术
Dave Milton
Art Direction音响
摄影
Arthur Reed
Director of Photography剪辑
Carl Pierson
Editor编剧
导演
制片