Oolong is a supporting character in the Dragon Ball series. He is an anthropomorphic pig with the ability to shapeshift, although only for a short period of time. Initially introduced as a troublemaker who kidnaps village girls, Oolong eventually joins Goku and his friends in their quest for the Dragon Balls. While he tends to be cowardly and greedy, Oolong provides comic relief and occasionally helps the group with his unique abilities and resourcefulness.