Killua has spiky silver hair, very pale skin, and blue eyes. He wears baggy clothing, with long-sleeved and dark-colored shirts most of his clothes have a turtleneck, he is 12 and 5'2, his personality is cheeky, cheerful, and full of mischievous ideas. Used to be an assassin, loves sweets and riding his skateboard, almost as much as he treasures his best friend, Gon Freecss. Killua's Nen type is Transmuter, he developed a Hatsu in which he transmutes his aura into electricity.