Rivalry and romance between the leaders of a male mariachi band and a female one.
| Actor | Role |
|---|---|
 Luis AguilarLucas | Lucas |
 Lucha VillaLupe | Lupe |
 Fernando SotoToño | Toño |
 Celia ViverosSocorro | Socorro |
 Emma RoldánDoña Mela | Doña Mela |
 Carlos AgostíRoberto Márques | Roberto Márques |
| EEmilio BrillasRomulo | Romulo |
| MMario SevillaCliente mariachi | Cliente mariachi |
| LLaila BuentelloNorma | Norma |
 María Elena VelascoAmiga de Lupe (uncredited) | Amiga de Lupe (uncredited) |