Marylebone Cricket Club | Lancashire County Cricket Club | Sierra Club | Deportivo Cali | club | Sgt. Pepper's Lonely Hearts Club Band | Club Brugge K.V. | Somerset County Cricket Club | Sport Club Corinthians Paulista | Glamorgan County Cricket Club | Hampshire County Cricket Club | Nottinghamshire County Cricket Club | Richmond Football Club | Gloucestershire County Cricket Club | Cornwall County Cricket Club | Kent County Cricket Club | Club Nacional de Football | Cambridge University Cricket Club | Collingwood Football Club | Yorkshire County Cricket Club | sports club | Essendon Football Club | Port Adelaide Football Club | Jockey Club | Club Atlético River Plate | Carlton Football Club | St Kilda Football Club | Racing Club de Avellaneda | Manhattan Theatre Club | Club Olimpia |
Born in San Lorenzo, Esmeraldas, Castillo started his career with Quito's Club Deportivo Espoli spending 3 years with the team, scoring a decent 11 goals in 66 appearances.
From 1992 to 1995 he was in charge of many small local sides in Ecuador, until he began to coach the youth ranks of Club Deportivo ESPOLI of Quito in 1996.