The Grim Adventures of Billy & Mandy

The Grim Adventures of Billy & Mandy is an American animated comedy horror television series created by Maxwell Atoms for Cartoon Network. Set in the fictional town of Endsville, the series follows the titular two children named Billy and Mandy who, after winning a limbo game to save Billy's pet hamster, gain the mighty Grim Reaper as their "best friend forever". Grim, who is reluctant to serve the two children, has access to supernatural items, spells, and other abilities that often lead Billy and Mandy to interact with otherworldly environments, characters, or situations.