Chester Morris
饰 Horatio 'Boston Blackie' Black
Joan Woodbury
饰 Red, the Bar-Girl
Don McGuire
饰 Les, the Bus Guide
Richard Lane
饰 Inspector William R. Farraday
Frank Sully
饰 Sergeant Matthews
Charles Arnt
饰 Pop Gerard
Luis van Rooten
饰 Bill Craddock (as Louis Van Rooten)
Philip Ahn
饰 Wong Chung Shee
Pat O'Malley
饰 Officer Jim
