Directed by
| Juan de Orduña | ||
Writing Credits (in alphabetical order)
| Eduardo Marquina | ... | (story) |
| Luis Marquina | ... | (story) |
| Antonio Mas Guindal | ... | (story) |
| Juan de Orduña | ||
Cast (in credits order)
| Juanita Reina | ... | Angustias | |
| Julio Peña | ... | Isaac Albéniz | |
| Antonio Vico | ... | Javier | |
| Manuel Luna | ... | Antonio | |
| Jesús Tordesillas | ... | Robert Brighton | |
| María Martín | ... | Emma (as Mery Martín) | |
| Ricardo Acero | ... | Enrique Fernández Arbós | |
| Rafaela Rodríguez | |||
| Arturo Marín | ... | Franz Liszt | |
| Félix Fernández | ... | Señor Agapito | |
| Fernando Aguirre | |||
| Carlos Larrañaga | ... | Isaac Albéniz (niño) (as Carlitos L. Ladrón de Guevara) | |
| Maruchi Fresno | ... | Laura Salcedo | |
| Rest of cast listed alphabetically: | |||
 |
Elisa Méndez | ... | (uncredited) |
| Carmen Sevilla | ... | Clementina (joven) (uncredited) | |
Produced by
| Eladio Alonso Sagredo | ... | producer |
| Jesús Rubiera | ... | producer |
Music by
| Manuel L. Quiroga | ||
Cinematography by
| Willy Goldberger | ... | (as Guillermo Goldberger) |
Editing by
| Petra de Nieva | ... | (as Petrita de Nieva) |
Set Decoration by
| Sigfrido Burmann | ... | (as Burman) |
Makeup Department
| Francisco Puyol | ... | makeup artist |
Production Management
| Miguel Tudela | ... | production manager |
Second Unit Director or Assistant Director
| Fortunato Bernal | ... | first assistant director |
Art Department
| Francisco Canet | ... | set designer |
Sound Department
| Antonio Alonso | ... | sound mixer |
| León Lucas de la Peña | ... | sound editor (as L. Lucas de la Peña) |
Camera and Electrical Department
| Alfonso Nieva | ... | camera operator |
Music Department
| Rafael de León | ... | songs |
| Antonio Quintero | ... | songs |
| Manuel L. Quiroga | ... | songs |
Additional Crew
| Sebastián Almeida | ... | executive secretary |
