Detective Chick Carter (Lyle Talbot)finds himself on his most exciting case when Sherry Martin (Julie Gibson), a singer at the Century Club, reports the robbery of the famous Blue Diamond, owned by Joe Carney (Charles King), the owner of the nightclub.
| Actor | Role |
|---|---|
 Lyle TalbotChick Carter | Chick Carter |
 Douglas FowleyRusty Farrell | Rusty Farrell |
 Pamela BlakeEllen Dale | Ellen Dale |
 Julie GibsonSherry Marvin | Sherry Marvin |
 Eddie AcuffSpud Warner | Spud Warner |
 Robert ElliottDan Rankin | Dan Rankin |
 George MeekerNick Pollo | Nick Pollo |
 Leonard PennVasky | Vasky |
 Charles KingJoe Carney | Joe Carney |
 Jack IngramMack | Mack |
 Joel FriedkinJules Hoyt | Jules Hoyt |
 Eddie ParkerFrank Sharp | Frank Sharp |