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Gian Maria Volonté as Gregorio |
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Diana Bracho as Luisa |
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Patricia Reyes Spíndola as Rosa |
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Salvador Sánchez as Sebastián |
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Claudio Obregón as Troncoso |
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Julián Pastor as Weber |
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Silvia Mariscal as Margarita |
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José Carlos Ruiz as Argandoña |
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Ernesto Gómez Cruz as Crisculo |
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Eduardo López Rojas as Domingo Soto |
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Arturo Beristáin as Young Worker |
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Francisco Morayta as Professor |
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Armando Acosta as Sergeant |
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Patricio Castillo as Lt. Gainza |
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Alejandro Parodi as Espinoza |
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Arthur Nations as Mr. Jones |
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Gabriel Retes as Soldier |
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Margarito Luna as Old Trooper |
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Max Kerlow as Engineer |
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Jorge Santoyo as Machinist |
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Guillermo Gil as Calameño |
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Salvador Godínez as Salvador |
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Jorge Santoyo as Maquinista |
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Manuel 'Flaco' Ibáñez as Rufino |
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Alicia del Lago as Mujer de Marusia |
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Mariana Lobo as Mujer de Marusia |
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Ivette Reyna as Mujer de Marusia |
| Writing | Miguel Littín | Writer |
| Camera | Jorge Stahl Jr. | Director of Photography |
| Sound | Mikis Theodorakis | Original Music Composer |
| Editing | Alberto Valenzuela | Editor |
| Editing | Ramón Aupart | Editor |
| Sound | Abraham Cruz | Sound Editor |
| Art | Raúl Serrano | Set Decoration |
| Sound | José B. Carles | Sound |
| Art | Agustín Ituarte | Set Designer |
| Sound | Gonzalo Gavira | Other |
| Writing | Patricio Manns | Original Story |
| Directing | Miguel Littín | Director |
