D. Ross Lederman
Director
Richard Weil
Screenplay
G.A. Snow
Story
Jack Boyle
Characters
Richard Wormser
Screenplay
Robert Peterson
Art Direction
George Montgomery
Set Decoration
George Meehan
Director of Photography
John Stone
Producer
Mischa Bakaleinikoff
Music Director
Al Clark
Editor
Malcolm Stuart Boylan
Additional Dialogue
George Cooper
Sound Recordist
Chester Morris
Horatio 'Boston Blackie' Black
Jeff Donnell
Anne Parks Duncan
Richard Lane
Inspector John Farraday
Dusty Anderson
Sandra
George E. Stone
The Runt
Frank Sully
Detective Sergeant Matthews
Marvin Miller
Dr. Nejino
Wilton Graff
Rex Duncan
Murray Alper
Eddie Alexander, Chauffeur
Forbes Murray
Dr. Purcell Nash
Joseph Crehan
'Jumbo' Madigan - Pawnbroker
