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Irasema Dilián as Manuela Medina |
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Marga López as Lucila |
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Rosaura Revueltas as Mother Superior |
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Magda Guzmán as Madre Inés |
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Patricia Morán as María Teresa |
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María Douglas as Mére Josephine |
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Alicia Rodriguez as Blanca |
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Lupe Carriles as Madre Concepción |
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Gloria Rodríguez as Esther |
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Enedina Díaz de León as Hermana Catalina |
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Ernesto Alonso as Novio de Lucila (voz) |
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Anabel Gutiérrez as Lupe Rodríguez |
| Art | Edward Fitzgerald | Art Direction |
| Costume & Make-Up | Armando Valdés Peza | Costume Designer |
| Costume & Make-Up | Felisa Ladrón de Guevara | Makeup & Hair |
| Costume & Make-Up | Enrique Hutchinson | Makeup & Hair |
| Directing | Alfredo B. Crevenna | Director |
| Writing | Christa Winsloe | Theatre Play |
| Writing | Egon Eis | Writer |
| Writing | Edmundo Báez | Writer |
| Camera | Ignacio Torres | Director of Photography |
| Production | Rodolfo Lowenthal | Producer |
| Sound | Raúl Lavista | Music |
| Editing | Rafael Portillo | Editor |