Judge Doom (formerly known as Baron von Rotten) is a fictional character who appears as the main antagonist in the 1988 film Who Framed Roger Rabbit, portrayed by Christopher Lloyd. He is depicted as the much-feared, cruel, and evil judge of Toontown, who is later to be revealed as the mastermind for the framing of the titular character and the murder of protagonist Eddie Valiant's brother within the film. Judge Doom has had many comparisons with characters from other fictional media, and his motives and actions have drawn parallels with real-world historical events.