A tale of an international counterfeiting-ring operating in Mexico starts with Patrick Nevil viewed as a suspicious character by newspaper woman Agnes Stuart, who is working on a story to expose racketeering night-club owner Doc Lilley.
| Actor | Role |
|---|---|
 Pat O'BrienPatrick Nevil | Patrick Nevil |
 Ruth WarrickAgnes Stuart | Agnes Stuart |
 Alan HaleDr. Lilley | Dr. Lilley |
 Edgar BuchananGeorge Richards | George Richards |
 Audrey LongAudrey Latham | Audrey Latham |
 Willard RobertsonGraeme | Graeme |
 Eduardo CiannelliSeñor Aguirre | Señor Aguirre |
 Minna GombellMrs. Latham | Mrs. Latham |
| EEddie Le BaronHimself - Continental Orchestra Leader (as Eddie LeBaron) | Himself - Continental Orchestra Leader (as Eddie LeBaron) |