Kriminalpolitiet på sporet Skuespillere og folkene bag
Edward G. RobinsonCapt. 'Barnie' Barnaby Paulette GoddardMona Ross Porter HallJack Hartrampf Adam WilliamsMarty Kusalich Barry KelleyDwight Foreman Mary Ellen KayCarol Lawson Lewis MartinPolice Lt. Ed Chisolm Murray AlperCop (uncredited) Joanne ArnoldMona Ross' Secretary (uncredited) William BoyettOfficer Kellogg (uncredited) Leonard BremenFred (uncredited) Paul BryarLt. Cade (uncredited) Jack CarrFred (uncredited) Russ ConwayReporter (uncredited) Edgar DearingFitz (uncredited) Edward EarleVault Teller (uncredited) George EldredgeMr. Lawson (uncredited) Percy HeltonMr. Jenner (uncredited) Byron KaneProf. Bruno Varney (uncredited) Robert KarnesLou (uncredited) Mickey KnoxPoliceman (uncredited) Mike LallyDetective in Lineup and Bank (uncredited) Phyllis BensonMortuary Receptionist (uncredited) Harry LewisArresting Detective (uncredited) Lee PhelpsVickie's Apartment Manager (uncredited) Lorin RakerMr. Moore (uncredited) Charles SherlockDetective in Lineup Room (uncredited) Charles TannenDutch (uncredited) John VerrosCount Alfredo Giovanni de Montova (uncredited) Christine WhiteMiss Easton (uncredited) Mack WilliamsMr. Schaefer (uncredited) Harry WilsonMan in Lineup (uncredited) William WoodsonDave (uncredited) Babs CoxSecretary (uncredited) Geraldine HallMrs. Lawson (uncredited) Raymond Boltz Jr.Set Decoration Carroll ClarkArt Direction Joseph F. BirocDirector Of Photography Wesley JeffriesWardrobe Master Gustaf NorinMakeup Artist Norma KochCostume Designer Leslie H. MartinsonSupervisor for manuskript Nathan BarragarAssisterende instruktør James LaneSecond Assistant Director Arthur H. NadelFilmklipper Herschel Burke GilbertKomponist af original musik Joseph MullendoreOrchestrator Harry LindgrenSound Recordist Pat FielderProduction Assistant 
