山口勝平
is an anthropomorphic kitsune who likes to use his shape-shifting abilities to transform into things to scare people and cause mischief, although he becomes friends with Arale after she saves him. In the anime, he gets a love interest in the female fox named Kitsuneko. He is voiced by Shigeru Chiba in the first anime and by Kappei Yamaguchi in the second. He makes a minor appearance in the "Dragon Ball" anime.