Walking alone in some dark alley, Sgt. Mediavillo goes about his job as a daring detective.
| Actor | Role |
|---|---|
 Fernando Poe Jr.Sgt. Mediavillo | Sgt. Mediavillo |
 Evangeline PascualNot listed | Not listed |
 Dencio PadillaNot listed | Not listed |
 Lorna TolentinoNot listed | Not listed |
 Vic VarrionNot listed | Not listed |
| NNello NayoNot listed | Not listed |
| EEdmund CupcupinNot listed | Not listed |
| VVen MedinaNot listed | Not listed |
| PProtacio DeeNot listed | Not listed |
| PPhilip CooNot listed | Not listed |
 Rene HawkinsNot listed | Not listed |
| EEddie GicosoNot listed | Not listed |
 Ely RoqueNot listed | Not listed |
 Rudy FernandezNot listed | Not listed |