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Silvia Pinal as Leonor Rivas Conde / Regina Salsamendi |
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Manolo Fábregas as Manuel |
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Prudencia Grifell as Simplicia |
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José Gálvez as Romualdo |
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Julio Villarreal as Dr. Meollo |
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Mauricio Garcés as Gabriel Jiménez |
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Alfredo Varela as |
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Manuel Vergara 'Manver' as |
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José Luis Menéndez as Prof. Julián de Mendoza |
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Gloria Mestre as Gloria |
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Alberto M. Simeon as Casildo |
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Elena Conesa as Josefa, the chef |
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Lupe Carriles as Marcela |
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Alberto Sacramento as Bald he-nurse |
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Francisco Pando as Man in the hospital |
| Directing | Tulio Demicheli | Director |
| Writing | Alfredo Varela | Writer |
| Production | Emilio Tuero | Producer |
| Sound | Gonzalo Curiel | Music |
| Crew | Agustín Martínez Solares | Cinematography |
| Editing | Carlos Savage | Editor |
| Production | Manuel de Anda | Casting |
| Art | Jesús Bracho | Production Design |
| Art | José G. Jara | Set Decoration |
| Costume & Make-Up | Felisa Ladrón de Guevara | Makeup Artist |
| Costume & Make-Up | Agripina Lozada | Hair Assistant |
