IMDb's listing of actors John Zaremba, George Brand, Mark Hanna, Carroll McComas and Hugh Sanders in the cast list for this film are incorrect. They actually appear in another Columbia picture, 1955's Chicago Syndicate. This stems from an error in the contemporary Daily Variety and Hollywood Reporter reviews. That it hasn't been corrected in two decades says a lot about IMDb. Also, Eddie Constantine does not appear in this film (he was in France by the time this film was shot), another of IMDb's many ghost credits.