Background
Casillas was born on 20 May 1981 in Móstoles, Community of Madrid to José Luis Casillas, a civil servant in the Ministry of Education, and María del Carmen Fernández González, a hairdresser. Both his parents had moved from their home of Navalacruz, Ávila. When Iker was a child, he lived for some years in the Basque Country, but he has always considered Madrid to be his hometown. Casillas has a brother, seven years younger, named Unai, who used to play as a central midfielder for CD Móstoles.