Diretor/a
William Nigh
DIRETOR/A
Elenco (na ordem dos créditos)
Boris Karloff
James Lee Wong
Marjorie Reynolds
Bobbie Logan
Grant Withers
Inspector Bill Street
Huntley Gordon
Mr. Davidson
George Lynn
Captain Guy Jackson
William Royle
Captain Jaime
James Flavin
Sergeant Jerry
Lotus Long
Princess Lin Hwa
Lee Tong Foo
Willie
Bessie Loo
Lilly May
Richard Loo
Tong Chief
Ernie Stanton
Burton
I. Stanford Jolley
Palisser Hotel Clerk (uncredited)
Jack Kennedy
Sgt. Brady (uncredited)
Donald Kerr
Taxi Driver (uncredited)
Wilbur Mack
The Coroner (uncredited)
Moy Ming
Aged Tong Member (uncredited)
Bruce Mitchell
Police Officer at Explosion (uncredited)
Angelo Rossitto
Mute Dwarf (uncredited)
Guy Usher
Police Commissioner (uncredited)