Credits
Cast
Boris Karloff
James Lee Wong
Grant Withers
Police Capt. Sam Street
Dorothy Tree
Valerie Edwards
Craig Reynolds
Peter Harrison
Ivan Lebedeff
Michael Strogonoff
Holmes Herbert
Prof. Ed Janney
Morgan Wallace
Brandon Edwards
Lotus Long
Drina
Chester Gan
Sing
Hooper Atchley
Carslake
Bruce Wong
Asian Man
Jack Kennedy
Police Guard
Lee Tung Foo
Willie
Wilbur Mack
Ballstics Expert
Dick Morehead
Police Detective
Joe Devlin
Police Lt. George Devlin
I. Stanford Jolley
Charades-Player
Art
E.R. Hickson
Art Direction
Camera
Harry Neumann
Director of Photography
Directing
W.B. Eason
Assistant Director
William Nigh
Director
Editing
Russell F. Schoengarth
Editor
Production
Scott R. Dunlap
Executive Producer
William T. Lackey
Producer
Charles J. Bigelow
Production Manager
Sound
Edward J. Kay
Music
Writing
Scott Darling
Screenplay
Hugh Wiley
Writer