After starting professionally with
Argentinos Juniors, Castillo moved in
Spain in January 1989, going on to spend the following 11 years in the country, with
RCD Español,
CD Tenerife,
Rayo Vallecano and
CD Badajoz – the latter in the
second division – always as an important first-team member. He amassed totals of 224 games and 15 goals in
La Liga. In 2007, seven years after retiring, Castillo returned to active, with lowly
Sportivo Patria in his native country (he had already been awarded
Spanish citizenship). ==External links==