- Irene Hervey
- Gen Rand
- Don Terry
- Canadian Army Captain William Flynn Hitchcock, aka Bill Flinn, posing as Captain Wilhelm Roering
- Leo Carrillo
- Nick Rand
- Andy Devine
- Detective Sam Dillon
- Lionel Royce
- German Captain Wilhelm Roering
- Turhan Bey
- Ito
- Frederick Giermann
- Franz Mueller
- William Ruhl
- Detective Callahan
- Clancy Cooper
- Police Inspector Alan Davies
- Eddie Fetherston
- Badger - Taxicab Driver
- Adolf Hitler
- Self
- Saburo Kurusu
- Self
- Benito Mussolini
- Self
- Kichisaburo Nomura
- Self
- Frank O'Connor
- Policeman
- Edward Peil Sr.
- Skipper
- Charles Sullivan
- Phil--Bartender
