He was a member of the Ecuador national football team at the 1997 Copa América, and obtained a total number of 11 caps during his career.
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 FIFA Confederations Cup held in Mexico.
He played in the 1997 Copa América, but a fight with the then coach Marcelo Bielsa diminished his chances of ever playing for the national team again.
He was picked for the squad at that year's Copa América and made his debut precisely in the continental tournament, against Ecuador in the group stage.
He was a member of the Ecuador national football team at the 1997 Copa América, and obtained a total number of 38 caps during his career.
He played in France 98, as well as the 1997 Copa América and 1999 and the mentioned 2005 Confederations Cup and 2006 World Cup.
North America | South America | 1997 | Latin America | Confederate States of America | America | Copa del Rey | Boy Scouts of America | Good Morning America | 1997 in music | Bank of America | Central America | United Way of America | Captain America | Voice of America | Miss America | Copa Libertadores | All-America | Titanic (1997 film) | America's Got Talent | United Kingdom general election, 1997 | America's Next Top Model | The Catholic University of America | America One | Socialist Party of America | Evangelical Lutheran Church in America | Copa América | America's Most Wanted | América de Cali | Writers Guild of America |
He represented the country at the 1997 and 1999 Copa América tournaments, being an unused squad member at the ill-fated 2002 FIFA World Cup in Japan and South Korea.
He was a member of the Ecuador national football team at the 1997 Copa América, and obtained a total number of four caps during his career and was a member of the Ecuador squad for Copa América 1997.
Selected for the 1997 Copa América, he did not play and debuted in the national team on June 29, 1999 at the 1999 Copa América match against Japan.