Career
He also made a short stint with Gimnasia y Esgrima de Jujuy from Argentina. He is the younger brother of Bolivian midfielder Ramiro Castillo, who died in 1997. From 1993 to 2000, Castillo earned 36 caps playing for the Bolivian national team including participations in the 1997 Copa América, in which Bolivia finished as runners-up and the 1999 Fédération internationale de football association Confederations Cup held in Mexico.