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