Adolfo Usero was born in Madrid in 1941. He moved to Barcelona in 1965. His first published comics were mainly westerns and war that he did through Josep Toutain's agency Selecciones Ilustradas from 1963. He worked for the British market through agency Bardon Art. In 1968 Usero cooperated on the first episodes of Esteban Maroto's '5 X Infinito'. After that he took over the series 'Delta 99' from Carlos Giménez. At Ortega's agency, Usero did 'Alex, Kan y Khamar'.