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Amelia Bence as Elena Valdés |
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Francisco de Paula as Raúl Saldívar |
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Enrique Diosdado as Carlos Barrera / payaso Víctor |
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Alberto Closas as Inspector Romero |
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Floren Delbene as Méndez |
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Otto Sirgo as Felipe Morel |
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Blanca Tapia as Monja |
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Agustín Barrios as |
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Norma Key as Elena adolescente |
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Alberto Quiles as Gómez |
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Francisco Audenino as |
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Percival Murray as |
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Alberto Barcel as |
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Rafael Diserio as |
| Directing | Daniel Tinayre | Director |
| Writing | Emilio Villalba Welsh | Writer |
| Camera | Humberto Peruzzi | Director of Photography |
| Writing | Alejandro Verbitzky | Writer |
| Sound | Felix Mendelssohn | Songs |
| Writing | Daniel Tinayre | Adaptation |
| Art | Álvaro Durañona y Vedia | Art Direction |
| Writing | Andrés Legrand | Author |
| Sound | Manuel de Falla | Songs |
| Sound | Cándido Hours | Sound |
| Sound | José María Castro | Music Director |
| Sound | Franz Liszt | Songs |
| Sound | Fryderyk Chopin | Songs |
| Editing | José J. Serra | Editor |
| Sound | Ludwig van Beethoven | Songs |
| Sound | Germán Szulem | Sound |
| Sound | Juan Ehlert | Music |
| Crew | Ignacio Souto | Cinematography |
