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