| Dennis O'Keefe | Dennis O'Brien/Vannie Harrigan |
| Alfred Ryder | Tony Genaro/Tony Galvani |
| Mary Meade | Evangeline |
| Wally Ford | The Schemer |
| June Lockhart | Mary Genaro |
| Charles McGraw | Moxie |
| Jane Randolph | Diana Simpson |
| Art Smith | Gregg |
| Herbert Heyes | Chief Carson |
| Jack Overman | Brownie |
| John Wengraf | ''Shiv'' Triano |
| Jim Bannon | Agent Lindsay |
| William Malten | Paul Miller |
| Reed Hadley | Narrator |
| Vivian Austin | Genevieve |
| James Seay | Hardy |
| Lyle Latell | Gregg's Driver |
| John Newland | Jackson Lee |
| Victor Cutler | Agent Newbitt |
| Tito Vuolo | Pasquale |
| John Parrish | Harry |
| Curt Conway | Shorty |
Two Treasury agents pose as mobsters to bust a counterfeiting ring.
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