Bart (Nancy Cartwright) is widely known as the ultimate prankster of Springfield. Without this ne'er-do-well's ability to tap into the spirit of youth, Bartmania (and, by extension, The Simpsons' ...

Bart (Nancy Cartwright) looks on as Mrs. Krabappel marks his test in The Simpsons' "Bart Gets an F." Image via Fox The Simpsons has been on so long now that it’s easy to forget that at one time it was ...