Conrado San Martín
— Enrique Vallar
Elena Espejo
— Ana María Figueroa
Francisco Rabal
— Rafael Figueroa
Mary Lamar
— Rosario Carreras
Carlo Tamberlani
— Comisario
Rosita Valero
— Farmacéutica
María Bru
— Doña Teresa
Luis Pérez de León
— Manzanares
Rafael Navarro
— Testigo
Eugenio Testa
— Don Antonio Herrera
José Ramón Giner
— Guarda / testigo
José Goula
— Juez
Luis Induni
— Ayudante del comisario
Juan Monfort
— Ayudante del comisario
Emilio Fábregas
— Farmacéutico (uncredited)
Xan das Bolas
— Sereno (uncredited)
Modesto Cid
— Presidente del tribunal (uncredited)
Francisco Linares-Rivas
— Fiscal (uncredited)
Ramón Hernández
— Trapero (uncredited)
José Manuel Pinillos
— Javier Guerra 'El Topo' (uncredited)
Fernando Porredón
— Don Julio (uncredited)