Oolong is a supporting character in the Dragon Ball series, known for his comical personality and shape-shifting abilities. Originally introduced as a minor antagonist, Oolong quickly becomes a companion to Goku and Bulma, joining them on their quest to find the Dragon Balls. Despite his cowardly and perverted tendencies, Oolong often provides comic relief and occasionally plays a crucial role in the group's adventures, such as making important wishes with the Dragon Balls. He is recognizable by his pig-like appearance.