Margarita, the nun of a cloistered convent in charge of handling the lathe, this is a rotating mechanism provided with a small window through which she delivered and received things from the outside without direct visual contact, she is seduced by a Don Juan and induced to escape with him .
| Actor | Role |
|---|---|
 María DuvalMargarita | Margarita |
 Andrés MejutoDon Juan de Alarcón | Don Juan de Alarcón |
| JJosefina DíazMadre Superiora | Madre Superiora |
 Alberto ContrerasNot listed | Not listed |
 Paquita GarzónNot listed | Not listed |
| DDiana CortesinaNot listed | Not listed |
 Luis OteroNot listed | Not listed |
 Amelia de la TorreNot listed | Not listed |
 Domingo MárquezNot listed | Not listed |
 Graciela LecubeNot listed | Not listed |
| HHerminia MasNot listed | Not listed |
| EEnrique San MiguelNot listed | Not listed |
| FFernando SalasNot listed | Not listed |
| MMaría José DíezNot listed | Not listed |
 María CarrerasNot listed | Not listed |
 Narciso Ibáñez MentaNot listed | Not listed |
| RRosina GrassiNot listed | Not listed |
| PPepita ConesaNot listed | Not listed |
| CCarmen SalmerónNot listed | Not listed |
| RRamon ReynadoNot listed | Not listed |
 Manuel AlcónNot listed | Not listed |
| AAurea Di ConoNot listed | Not listed |
| AAlfredo LaferriereNot listed | Not listed |
| OOscar Sánchez MillánNot listed | Not listed |
 Julia SandovalNot listed | Not listed |
 Carmen LlambíNot listed | Not listed |