导演 León Klimovsky

Santiago Ramón y Cajal Adolfo Marsillach

Old woman on train Julia Caba Alba

Professor Casas Rafael Bardem

Silvería Asunción Sancho

Antonio Rivas Mario Morales

Mother Isabel de Pomés

Don Justo José Marco Davó

María del Valle

Santiago (young) Ángel Luis Álvarez

Pedro (young) Miguel Ángel Rodríguez

Enriqueta Estrella Martínez

Tomás Elías Rodríguez

Animal seller Matilde Muñoz Sampedro

José Riesgo

Francisco Masana

Photographer Ángel Álvarez

Priest Ángel Calero

José Luis Torrado

Farmer Luciano Díaz

Shoe salesman José Sepúlveda

María Jesús Lara

Pilar Cano

Pedro (adult) Manuel Peiró

Orderly Joaquín Bergía

Pet shop assistant Goyo Lebrero

Cholera patient José Manuel Martín

Scientist Julio Sanjuán

Committee Member 1 Rufino Inglés

Committee Member 2 Juan Manuel San Juan

Dr Ferrán Carlos Mendy

Cholera patient's husband Manuel Arbó

Showman Luis Rivera

Carmen Esbrí

Enrique Ávila

Luis Gario

Butler Juan Cazalilla

Professor Skelliger Antonio Alfonso Vidal

Domingo Rivas

Congress Employee Luis María Lasala

(uncredited) Antonio Molino Rojo

(uncredited) Antonio Vela