William Nigh
Director
Paul Malvern
Producer
Harry Neumann
Director of Photography
Robert Golden
Editor
Gordon Bau
Makeup Artist
Karl Zint
Sound Recordist
Edward J. Kay
Music
Michael Jacoby
Screenplay
Charles J. Bigelow
Production Manager
Glenn Cook
Assistant Director
Ralph Gilbert Bettison
Story
Hugh Wiley
Characters
Boris Karloff
James Lee Wong
Marjorie Reynolds
Roberta 'Bobbie' Logan
Grant Withers
Capt. William Street
William Stelling
Dick Fleming
Catherine Craig
Cynthia Wentworth
Guy Usher
Paul Fleming
Henry Brandon
Attorney Victor Martin
Melvin Lang
Cyrus B. Wentworth
Wilbur Mack
Matthews
Kenneth Harlan
Ludlow
Richard Loo
Tong Leader
Tris Coffin
Mr. Baldwin - Adjuster (uncredited)
Gibson Gowland
Doctor (uncredited)
Jack Kennedy
Police Sgt. Casey (uncredited)
Bill Willmering
Det. Blake (uncredited)
Mike Donovan
Det. Mike
Maxine Leslie
Miss Reed - Secretary
Moy Ming
Aged Tong Member
Angelo Rossitto
Newsboy #3 in Montage
