Capucine as Lucía Fonte

Judy Matheson as Esther

Teresa Gimpera as La esposa del editor

Carlos Estrada as El editor

Luis Induni as El Comisario de Policía

Eduardo Doménech as Chófer

José María Blanco as Escritor

Santiago Satorre as Niño

Joaquín Vilar as Niño

Manuel Bronchud as Vecino

Víctor Israel as Portero

Miguel Muniesa as Empleado Correos

Luis Ciges as Funcionario

Francisco Jarque as Detective

Ignacio B. Malacilla as Camarero

André Argaud as Dr. Barres

Carlos Miguel Solá as Jefe de policía

Joaquín Navales as Policía

Alicia Tomás as Secretaria

Miquel Bordoy as