Majin Buu (Japanese: 魔人ブウ, Hepburn: Majin Bū), generally spelled Majin Boo in subtitles of the Japanese anime, and rendered as Djinn-Boo in the Viz Media manga, is a fictional character and final antagonist in the Dragon Ball manga series created by Akira Toriyama, before the release of Dragon Ball Super. He made his debut appearance in chapter #460 "Majin Buu Appears?!", first published in Weekly Shōnen Jump magazine on March 1, 1994. Majin Buu is a genie-like magical life form awoken by the evil warlock Bibidi that terrorized the universe millions of years before the events of Dragon Ball take place.
He was sealed away by Bibidi and brought to Earth; however, whilst being sealed away, Bibidi was killed and Buu remained sealed away and dormant. During the events of Dragon Ball Z, he is revived by Bibidi's son Babidi in order to continue his father's plan to conquer the entire universe.