After studying Secondary Education, he studied Trade and English for a year. Helped by the journalist Enrique Mariñas, he began to adapt classic literary works for ‘Radio Nacional’. In 1942, he moved to Madrid to study Journalism. He got a job in the bank firm ‘Banco Español de Crédito’ and returned to A Coruña to work in a new branch. In addition to his job in the bank, Amando de Ossorio opened a photography studio in A Coruña, where he met friends such as Mariano Tudela, Laxeiro, Urbano Lugrís and other people of the cultural circles of the city. He began to collaborate with the newspaper La Voz de Galicia but he went on with his activity in ‘Radio Nacional’ making the programme ‘La Provincia’. In 1949, he definitively moved to Madrid and went on collaborating in ‘Radio Nacional de España’. From 1956 to 1960 he worked as a producer of Movierecord.
In 1942 he produced two short films: ‘El misterio de la endemoniada’ and ‘El último carnaval’. Ten years later Pedro de Juan asked him for a script for the film ‘Último día’ by Antonio Román and from that moment onwards he also wrote scripts for ‘Bajo el cielo de España’ (1952), ‘Cabaret’ (1952), ‘La ciudad de los sueños’ (1954) and ‘El ejército blanco’ (1959). Before entering the Cinema School he directed the film ‘Noche de embrujo’ in 1950 and in 1956 he produced his first full-length film titled ‘Bandera Negra’. Afterwards, he produced a coproduction western titled ‘La tumba del pistolero’ (1964) and ‘Malenka’ (1968). From 1971 and 1976 he elaborated the following films: ‘La noche del terror ciego’, ‘El ataque de los muertos sin ojos’, ‘El buque maldito’, ‘La noche de las gaviotas’, ‘Las garras de Lorelei’, ‘La noche de los brujos’ and ‘La endemoniada’.