Cast
- Boris Karloff as Wu Yen Fang
- Beverly Roberts as Jane Creed
- Ricardo Cortez as Gordon Creed
- Gordon Oliver as Jim Hallet
- Sheila Bromley as Lola Galt
- Vladimir Sokoloff as Chow Fu-Shan
- Gordon Hart as Dr. Abernathy
- Richard Loo as Mr. Cheng
- Chester Gan as Kung Nui
- Luke Chan as Chan - Abernathy's Servant
Crew
- John Farrow · Director
- Crane Wilbur · Writer
- Porter Emerson Browne · Writer
- L. William O'Connell · Cinematographer
- Frank DeWar · Editor