Lew Landers Director Chester Morris Horatio "Boston Blackie" Black, Cyrus Peyton Actor Lynn Merrick Geraldine "Gerry" Peyton Actor Richard Lane Inspector Farraday Actor Frank Sully Sergeant Matthews Actor George E. Stone The Runt Actor Ben Markson Screenwriter John Stone Producer Burnett Guffey Cinematographer Jerome Thoms Film Editing Carl Anderson Art Director Jerome Pycha Jr. Art Director Albert Rickerd Set Decoration