Chester Morris

Horatio 'Boston Blackie' Black

Lynn Merrick

Constance Gloria Mannard

Richard Lane

Insp. John Farraday

Frank Sully

Sgt. Matthews

Steve Cochran

Jack Higgins

George E. Stone

The Runt

Lloyd Corrigan

Arthur Manleder

George M. Carleton

Wilfred Kittridge

Edward Keane

Doctor