"Little Big Head Man" is the fifth episode of the third season of Superman: The Animated Series, and the 46th of the overall series. It depicts the return of both Mr. Mxyzptlk and Bizarro. Finding the loophole that he only promised not to bother Superman, Mr. Mxyzptlk incites anger against Superman in Bizarro and sets him against his enemy. Now Superman must deal with his angry clone while Mr. Mxyzptlk learns a lesson he'll never forget.