El Pichi, El Trompas and El Orejas are street children who pick up a bill that Fernando has dropped, who prevents them from being arrested and offers them a job at a cake stand. Fernando meets Queta, El Pichi's sister, and they both feel attracted. This will lead Fernando to know the hardness of life for people in the suburbs.
| Actor | Role |
|---|---|
 Meche BarbaQueta | Queta |
 Fernando FernándezFernando "el Calavera" | Fernando "el Calavera" |
| EEsther LuquínMona | Mona |
 Freddy Fernández 'El Pichi'Fernando "el Pichi" | Fernando "el Pichi" |
 Alberto MariscalMemo | Memo |
 Rafael IcardoComisario | Comisario |
| Freddy Fernández 'El Pichi'Fernando 'El Pichi' | Fernando 'El Pichi' |
 Juan OrracaGonzález, detective | González, detective |
| AArmando VelascoDon Víctor | Don Víctor |
| MMoreno LópezTrompas | Trompas |
| JJaime Jiménez PonsOrejas | Orejas |
 Toña la NegraCantante | Cantante |
| SStephen BerneEspectador (uncredited) | Espectador (uncredited) |
| AAlfonso CartiPolicía (uncredited) | Policía (uncredited) |
| JJosé LozaJoven jugador (uncredited) | Joven jugador (uncredited) |
 Salvador GodínezHombre grosero (uncredited) | Hombre grosero (uncredited) |
| GGeorgina GonzálezChica en picnic (uncredited) | Chica en picnic (uncredited) |