Horatio 'Boston Blackie' Black
Chester Morris
Dorothy Anderson
Janis Carter
Miss Wilkinson (Uncredited)
Minerva Urecal
Woman in Daley's Office (Uncredited)
Constance Purdy
Policeman (Uncredited)
Ed Allen
Boy (Uncredited)
Kenneth Brown
Margaret Dean (Uncredited)
Early Cantrell
Exhibit Attendee (Uncredited)
Lew Davis
Mother (Uncredited)
Edythe Elliott
Frank (Uncredited)
Jack Gardner
Reporter (Uncredited)
Fred Graff
Arthur Manleder (Uncredited)
Harrison Greene
Paul Martens
William Wright
Fred Howard
Dick Jensen
Henry Jordan
Police Commissioner Howard (Uncredited)
Edward Keane
News Photographer (Uncredited)
Tom Kingston
Detective Sergeant Matthews (Uncredited)
Lyle Latell
Billy Lenhart
Newsstand Clerk (Uncredited)
Anne Loos
Police Guard (Uncredited)
George Magrill
Cy Malis
Inspector Farraday
Richard Lane
Police Sergeant McNulty (Uncredited)
George McKay
Police Sergeant (Uncredited)
Pat O'Malley
Austin (Uncredited)
John Tyrrell
Man in Office with Matthews (Uncredited)
Bob Walker
Cecil Weston
The Runt
George E. Stone
Matt Healy
Robert B. Williams
George Daley
Mark Roberts
Eileen Daley (Uncredited)
Dorothy Malone
Jumbo Madigan (Uncredited)
Joseph Crehan
Traffic Cop (Uncredited)
Ben Taggart
Producer
Ted Richmond
Director
Budd Boetticher
Writer
Paul Yawitz
Director of Photography
L. William O'Connell
Jack Boyle
Editor
Al Clark
Set Decoration
Robert Priestley
Original Music Composer
Paul Sawtell
Art Direction
George Brooks
Lionel Banks
Assistant Director
Milton Feldman
Additional Music
Gregory Stone
Werner R. Heymann
Earl E. Lawrence
Music Director
Mischa Bakaleinikoff
Ben Oakland
Sound
Lambert E. Day