An ex-con is inspired to go undercover and "finger" the mob after finding out his sister is hooked on illegal drugs.
| Actor | Role |
|---|---|
 Frank LovejoyCasey Martin | Casey Martin |
 Forrest TuckerDutch Becker | Dutch Becker |
 Peggie CastleGladys Baker | Gladys Baker |
 Timothy CareyLou Terpe | Lou Terpe |
 John CliffJohnny Cooper | Johnny Cooper |
| WWilliam F. LeicesterJim Rogers | Jim Rogers |
| GGlen GordonCarlos Armor | Carlos Armor |
| JJohn Close'Big' Walters | 'Big' Walters |
 Hugh SandersMr. Burns | Mr. Burns |
| EEvelyn EatonLucille Martin | Lucille Martin |
| CCharles MaxwellFred Amory | Fred Amory |
 Joi LansingBlonde in bar | Blonde in bar |
 Lisa MontellMary Smith (uncredited) | Mary Smith (uncredited) |
 Dorothy GreenCandy | Candy |