Роші Мутен

He is a stock character, as he is both the archetypal wise old man and dirty old man, the latter being typical of shōnen anime. Sometimes he gets cranky, which further provides comic relief. He is bald, with a thick goatee and a thick mustache. Muten-Rôshi wears beach clothes or a martial arts suit and a turtle shell on his back. He usually wields a walking stick.

His companions are usually Oolong, Umigame and Lunch.