- Boris Karloff
- Wu Yen Fang
- Beverly Roberts
- Jane Creed
- Ricardo Cortez
- Gordon Creed
- Gordon Oliver
- Jim Hallet
- Sheila Bromley
- Lola Galt
- Vladimir Sokoloff
- Chow Fu-Shan
- Gordon Hart
- Dr. Abernathy
- Richard Loo
- Mr. Cheng
- Chester Gan
- Kung Nui
- Luke Chan
- Chan - Abernathy's Servant
- Paul Fung
- Station Master
- Mia Ichioka
- Hua Mei
- Selmer Jackson
- Harry Hemingway
- Tetsu Komai
- General Ma
- Eddie Lee
- Wang Chung - the Assassin
- James B. Leong
- Pao - Man Who Goes for Help
- Maurice Liu
- Train Conductor
- Daro Meya
- Chinese Officer
- Frank Tang
- Chinese Merchant
- Sammee Tong
- Messenger
- Tom Ung
- General Ma's Aide
- Bruce Wong
- Train Steward
- Douglas Wood
- Myron Galt
