 Tom Signorelli, who played Detective Brennan, an officer investigating the crimes, was a New York stage actor.Lillian Roth, a former film actress-turned-Broadway performer, was cast in a minor role as the pathologist, marking her first film role in decades.In the years after the film's release, Sole spoke favorably of Shields and Sheppard, though he recalled that much of the cast were "New York actors who were doing me a favor."