Most of the principal characters are played for members of the same family. Director Mariano Ozores and the actors José Luis Ozores and Antonio Ozores are brothers. Elisa Montes was the wife of Antonio Ozores and Emma Pennella is the sister of Montes. In other hand, Rafael Arcos was the brother in law of Mariano Ozores.
Besides, Mabel Karr and Fernando Rey were husband and wife; and Mari Carmen Prendes and Luis Prendes were brothers.