The Real Madrid goalkeeper earns his first call-up since recovering from a hand injury, but Del Bosque feels Casillas remains a key figure for Spain regardless of his lack of match action after being usurped by Diego Lopez at club level.
Torres, meanwhile, makes his comeback for the national side after impressing for Chelsea in the past few months, with his goal in the 2-1 Europa League final win over Benfica the highlight of his season.
Furthermore, Bayern Munich midfielder Javi Martinez also returns after missing out on the last Spain squad, while Benat and Javi Garcia have made the cut, too.
David de Gea, Isco and Thiago Alcantara were called up for the Under-21 side taking part in the European Championships in Israel this summer and are therefore unavailable.
Spain meet Uruguay, Tahiti and Nigeria at the Confederations Cup.
The squad in full:
|Jose Manuel Reina||Liverpool|
|Iker Casillas||Real Madrid|
|Sergio Ramos||Real Madrid|
|Raul Albiol||Real Madrid|
|Alvaro Arbeloa||Real Madrid|
|Xabi Alonso||Real Madrid|
|Javi Garcia||Manchester City|
|Javi Martinez||Bayern Munich|
|David Silva||Manchester City|