The murdered private investigator, Arbogast, shares a name with Martin Balsam's character in Hitchock's Psycho (1960). In the film, Arbogast is also a private detective who meets an untimely end.
Angelo Rizacos appears as Frisky. He had previously appeared as the ill-fated Tony in "Guns at Cyrano's."
"Trouble is My Business" was adapted as an episode of The Adventures of Philip Marlowe on radio. Starring Van Heflin as Marlowe, it aired August 5, 1947.