The creepy man-child
Buu/Kid Buu/Super Buu/Majin Buu is an antagonist and then later protagonist in Dragon Ball Z's Majin Buu Saga.
In the Anime
In the anime, Buu is a creature as old as time itself that is summoned and controlled by Bobidi and then Babidi. He diligently serves Babidi by destroying whomever or whatever is in Babidi's way.
In Dragon Ball Z Abridged
So far, Buu has not officially appeared in the Abridged series. He was referenced during Bardock: Father of Goku, during Bardock's final flash forward in which he sees his son fighting a 'weird bug-man' (Cell) and a fat pink man-child (Buu)
Trivia
- In Blades, Bots, and Borks! Fan Mail Friday it is mentioned that Majin Buu's voice actor has been chosen. Although their identity is currently a secret, they are apparently a famous YouTuber.