Skull Kid - There are actually several skull kids in Ocarina of Time. They aren't particularly important in that game , but they become important in Majora's Mask, and the background characterizations from OoT are important. Basically they are mischievous, fun loving kids who never grow up... if you play there games in OoT they'll give you stuff. In Majora's Mask one Skull Kid gets a hold of a powerful, evil mask, and becomes the villain.