When El Santo defeated The Strangler, one of his most formidable foes, he never expected to see him again. However, thanks to Tor, the villain returns from the dead to seeks revenge on Santo.
| Actor | Role |
|---|---|
 El SantoSanto | Santo |
 Roberto CañedoThe Strangler | The Strangler |
 María DuvalLaura | Laura |
 Carlos López MoctezumaInspector Villegas | Inspector Villegas |
 Alberto VázquezJavier | Javier |
| MMilton RayMilton | Milton |
 Begoña PalaciosIrene | Irene |
 Julián de MericheDon Julian | Don Julian |
| GGloria ChávezNot listed | Not listed |
 Manuel DondéNot listed | Not listed |
| MManuel GarayMendez (uncredited) | Mendez (uncredited) |
 Gerardo ZepedaTor (uncredited) | Tor (uncredited) |