Suso Peña Rego was an artist who mainly worked for the foreign market throug the Selecciones Ilustradas and La Floresta agencies. He worked on the Spanish production of stories for the horror magazines by the American publishers Warren and Skywald. He drew for German series like 'Jeff Blake' and 'Wheeler', and 'The Steel Claw' for Fleetway in Britain.
For the Spanish market, he did art on series like '5 x Infinito', 'Gringo', 'Safari' and 'África' (the latter for Gran Pulgarcito), in alternation with other artists. He wrote and drew the series 'Control' in the science-fiction magazine 1984.