The Grim Adventures of Billy & Mandy often referred to as simply Billy and Mandy is an American animated television series that aired on Cartoon Network. It is also the spin-off of Grim & Evil. Having originally aired as part of Grim & Evil The show began in 2001, The show began airing under the Grim Adventures of Billy and Mandy title on June 13, 2003, airing its last regular episode on November 9, 2007. A crossover with Codename: Kids Next Door, called The Grim Adventures of the KND, first aired on November 11, 2007. On October 12, 2008, a special titled Underfist which focused on several supporting characters, aired, intended as a backdoor pilot, but the spinoff never came to fruition.
Billy and Mandy are two children from Endsville, a typical "Anytown, USA".