Cast
Clancy Cooper
Warehouse Man (uncredited)
Lester Dorr
Coroner (uncredited)
Herbert Evans
Wilk's Butler (uncredited)
Lee Tung Foo
Tchin
Lynton Brent
Tommy
William Gould
Theodore Meisle
Hooper Atchley
Christian Wilk
Grant Withers
Police Capt. Sam Street
Evelyn Brent
Olga Petroff / Countess Dubois / Sophie Dome
George Lloyd
Devlin
John St. Polis
Carl Roemer
John Hamilton
Simon Dayton
Wilbur Mack
Russell
Ed Cassidy
Ambulance Doctor (uncredited)
Wheaton Chambers
Chemistry Lab Director (uncredited)
Boris Karloff
James Lee Wong
Maxine Jennings
Myra Ross
Lucien Prival
Anton Mohl