Link
Like all Zelda games, Link is the main protagonist in Skyward Sword. Soon after Zelda's disappearance, Link finds that he as been chosen as the Goddess's hero and he once again dons his signature green tunic and pointed hat. With this, Link is given the Goddess Sword and is accompanied by Fi, His companion in the adventure.
Link grows up in a city on the clouds known as Skyloft. He trains there as a student in the Skyloft Knight Academy, finally giving a history for the legacy of future Links' naturally gifted fighting abilities. He goes to school with his childhood friend Zelda and has a special bird that allows him to journey through the clouds to Hyrule below.
As in Twilight Princess (Wii version), Link is once again right-handed because Skyward Sword uses Wii Motion Plus for 1:1 sword motion. Several screenshots and trailers have already confirmed that Link will have several different upgradeable swords, shields, and other items to aid in his quest.