- Conway Tearle
- Insp. Decker Dawes
- Natalie Moorhead
- Carol Manning
- Raymond Hatton
- Det. Sgt. Meade
- Noel Francis
- Ruby Cotton
- John Wray
- Jason Getty
- Margaret Dumont
- Sybilla Crum
- Ralf Harolde
- The Electric Voice
- Oscar Apfel
- Dist. Atty. Kerry
- Robert Frazer
- Chemist
- Harry C. Bradley
- Davis - Hotel Manager
- Lew Kelly
- Connelly - Hotel Detective
- Clarence Brown
- Head Porter
- Albert Pollet
- Thompson
- Almeda Fowler
- Nurse
- Dickie Moore
- Young Boy
- Sidney Bracey
- The Butler
- Lynton Brent
- Reporter
- John Elliott
- Doctor
- Hal Price
- Police Detective
