The April Fool

The April Fool is a prankster who plays very mean pranks on people. Although he is a minor character on the show, he played a big part in the episode "Fool's Day Out". His catchphrase is, "What's up with that?", similar to that of comedian Jerry Seinfeld. He also competed in the Fairy World games. The April Fool appears to draw inspiration from a variety of characters in pop culture, such as Batman's arch-enemyThe Joker and the Jokers Henchgirl Harley Quinn. His outfit even bears a strong resemblance to the Jokers costume, complete with a Jester hat similar to Harley Quinn's. The April Fool's rather dark humor is similar to that of the Joker, as is his permanent grin. His physical characteristics appear to be modeled on that of Jack Nicholson's portrayal of the Joker in the 1989 "Batman" film. Being that Butch Hartman is an avid comic book fan, and has referenced the "Batman" series, it's likely that these decisions were made in homage to the Joker.