The film is a biography of the tenor Julian Gayarre who was born in 1843 in a small village in Navarra, Spain, and who soon demonstrated his great ability to sing.
| Actor | Role |
|---|---|
 Alfredo KrausJulián Gayarre | Julián Gayarre |
 Luz MárquezLuisa | Luisa |
 Adriano DomínguezSabater | Sabater |
 Antonio RiquelmeSr. Pedro | Sr. Pedro |
 Rafael BardemLampertti | Lampertti |
 Teresa del RíoCarmen | Carmen |
| MMaría BassóMadre de Gayarre | Madre de Gayarre |