

Antonio Torres, a serious singer of Spanish popular music, and Bárbara, a vivacious yé-yé singer, face off in a chaotic contest promoted by Rodolfo Sicilia, an overworked publicist.

José María Caffarel
Gosálvez

Tomás Blanco
Police Commissioner

Emiliano Redondo
Michel

Manuel Velasco
Carlos

Adriano Domínguez

Ricardo Canales

Enrique Vivó

Rafael Hernández

Goyo Lebrero

Joaquín Pamplona

Erasmo Pascual

Joaquín «Top» Portillo

Emilio Alonso

Luis Rivera

David Areu

Paco Torres

Adolfo Torrado

Bárbara Lis

Baldomero García Escobar

Salvador García Escobar

Juan Gabriel García Escobar

Fernando Rey
Narrator (voice) (uncredited)

Andrés Caparrós Martínez
Radio Announcer (uncredited)