| Cast overview, first billed only: |
 | Rodolfo de Anda | - | Teniente Rodolfo Robles |
 | Héctor Suárez | - | Sargento Margarito |
 | Jorge Lavat | - | Capitán Agustín Tovar |
 | Pedro Armendáriz Jr. | - | Mayor González |
 | Tito Junco | - | Coronel Santos |
 | José Elías Moreno | - | Don Eusebio |
| Rosario Gálvez | - | Doña María viuda de Altamirano |
| Nora Larraga 'Karla' | - | Rosa María |
 | Claudia Islas | - | María Isabel |
| Jacqueline Fellay | - | Marion, la francesa |
| Eva Muller | - | María Suzuki, la japonesa |
| Nancy Glenn | - | Mary, la americana (as Nancy Gleen) |
| Lina Marín | - | María Guadalupe, la mexicana |
| Eleanor Sagan | - | Mariuska, la rusa (as Eleonora Sagan) |
| Edith Hodgkinson | - | Mariana, la italiana |
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