Judge Doom, Who Framed Roger Rabbit?
...Everyone, that is, except for—drumroll please... Judge Doom! Truly saving the best for last, Doom’s flair for mayhem knows no bounds: He murdered Toon Town’s owner, Marvin Acme (and pins it on Roger Rabbit); he intended to replace said town with a highway; and, as his coup de grâce, reveals that he was the toon that killed private investigator Eddie Valiant’s brother. Oh, and then there’s that little thing about killing an anthropomorphic clown shoe in cold blood by dunking it in the Dip. Considering all this, no wonder Doom's comeuppance was oh so sweet!