 |
Libertad Lamarque as Sor Lucero / Hermana María de la Luz |
 |
César Costa as Mario |
 |
Angélica María as Marisa |
 |
Luz Márquez as Mamá de Mario |
 |
Fernando Luján as Greñas |
 |
Andrea Palma as Hermana Margarita |
 |
Antonio Raxel as Papá de Mario |
 |
Fanny Cano as Amiga de Marisa |
 |
Nacho Méndez as uncredited |
| Directing | Alfonso Corona Blake | Director |
| Writing | Fernando Galiana | Writer |
| Writing | Julio Alejandro | Writer |
| Production | Óscar J. Brooks | Producer |
| Sound | Raúl Lavista | Music |
| Camera | Agustín Martínez Solares | Director of Photography |
| Editing | José W. Bustos | Editor |
| Art | José Rodríguez Granada | Production Design |
| Camera | Hugo Velasco | Camera Operator |
