 James GleasonPolice Insp. Oscar Piper | Police Insp. Oscar Piper |
 Helen BroderickHildegarde Withers | Hildegarde Withers |
 Louise LatimerBarbara Foley | Barbara Foley |
 Owen Davis Jr.Eddie Fry | Eddie Fry |
 John ArledgeJoey Thomas | Joey Thomas |
 John CarrollLatigo Wells | Latigo Wells |
 Leslie FentonDon Gregg | Don Gregg |
 Christian RubChris Thomas | Chris Thomas |
 Sheila TerryViolet Feverel | Violet Feverel |
 Willie Best'High-Pockets' | 'High-Pockets' |
 John MilternPatrick Gregg | Patrick Gregg |
 Spencer ChartersWarden Sylvester Mahoney | Warden Sylvester Mahoney |
 James DonlanDetective Kane | Detective Kane |
 Gustav von SeyffertitzDr. Bloom, Police Dept. | Dr. Bloom, Police Dept. |
 Frank ReicherDr. Peters | Dr. Peters |
| HHarry JansAddie, Reporter | Addie, Reporter |
 Murray AlperTaxi Driver (uncredited) | Taxi Driver (uncredited) |
 Barlowe BorlandPipe Expert (uncredited) | Pipe Expert (uncredited) |
 Harry BowenChecker Taxi Driver (uncredited) | Checker Taxi Driver (uncredited) |
 Maurice CassMr. Schultz, Handwriting Expert (uncredited) | Mr. Schultz, Handwriting Expert (uncredited) |
 Maxine JenningsGirl in Waiting Car (uncredited) | Girl in Waiting Car (uncredited) |
 Mike LallyReporter (uncredited) | Reporter (uncredited) |
 Frank MarloweHorseman on Bridle Path (uncredited) | Horseman on Bridle Path (uncredited) |
 Tony MartinMan with Violet (uncredited) | Man with Violet (uncredited) |
 Frank MillsHorseman on Bridle Path (uncredited) | Horseman on Bridle Path (uncredited) |
 Jack RiceViolet's Hotel Manager (uncredited) | Violet's Hotel Manager (uncredited) |
 Dewey RobinsonTurkish Bath Attendant (uncredited) | Turkish Bath Attendant (uncredited) |
| MMonte VandergriftDetective Bart (uncredited) | Detective Bart (uncredited) |
