Sheik and Ganondorf confirmed for Brawl

In an interview from GameInformer, Eiji Aonuma, who directed Twilight Princess, let go that both Sheik and Ganondorf will be returning for the next iteration in the Smash Bros. series. Zelda had already been confirmed for quite a while, so the fact that Sheik is in it comes at no surprise.

This brings the total number of confirmed characters up to 15 as of writing, not including unlockables.