Killua has spiky silver hair, very pale skin, and blue eyes. His eyes change shape depending on the mood that he's in, Killua typically wears baggy clothing, with his usual attire consisting of long-sleeve. Gon is a young boy with long spiky black green tipped hair and large, hazel brown eyes. His usual outfit is composed of a green jacket with reddish edges covering a black or white tank top underneath, green pants, and green laced boots.