Laura Hidalgo as Blanca / Mónica

Hugo del Carril as Fernando de Arellano

Gloria Ferrandiz as Housekeeper Sabina

Ricardo Galache as Doctor Santillán

Pedro Laxalt as Don Álvaro - Medical Doctor

Francisco López Silva as Butler Esteban

Eduardo Rudy as Luis Marcel / Mauricio Pontier

Ricardo de Rosas as Coachman Bernabé

Víctor Martucci as Doctor - Santillán's Friend

Lilí Gacel as Handmaid Herminia

Ramona Lloveras as Don Álvaro's Wife

Alberto Barcel as Usher

Adolfo Meyer as Don Álvaro's Father

Fedora Marini as Don Álvaro's Mother

Alfredo Almanza as Police Detective #1

Rafael Diserio as

Pedro Garza as

Roberto Machado as Police Detective #2

José Rivas as Porter