James Lee Wong

Police Capt. Sam Street

Myra Ross

Olga Petroff / Countess Dubois / Sophie Dome

Devlin

Anton Mohl

Carl Roemer

Theodore Meisle

Christian Wilk

Simon Dayton

Russell

Tchin

Tommy

Mrs. Roemer

Lescardi (uncredited)

Ambulance Doctor (uncredited)

Chemistry Lab Director (uncredited)

Warehouse Man (uncredited)

John (uncredited)

Coroner (uncredited)

Wilk's Butler (uncredited)

Dock Worker (uncredited)