Detective Mike Hammer's investigation of a murder puts him in the middle between warring jewel thieves.
| Actor | Role |
|---|---|
 Robert BrayMike Hammer | Mike Hammer |
 Whitney BlakeNancy Williams | Nancy Williams |
 Donald RandolphColonel Holloway (as Don Randolph) | Colonel Holloway (as Don Randolph) |
 Richard GarlandLouis | Louis |
 Fred EsslerLudwig Teller | Ludwig Teller |
 Booth ColmanCapt. Pat Chambers (as Booth Coleman) | Capt. Pat Chambers (as Booth Coleman) |
 Pamela DuncanVelda | Velda |
| GGenie CoreeMaria (as Gina Coré) | Maria (as Gina Coré) |
 Patricia DonahueDione | Dione |
| JJan ChaneyRed | Red |
 Terence de MarneyJean (as Terence De Marney) | Jean (as Terence De Marney) |
 Peter MamakosLa Roche | La Roche |
 Claire CarletonNightclub Boss | Nightclub Boss |
 Phil ArnoldShorty | Shorty |