The Grim Adventures of Billy & Mandy is an American animated television series that aired from 2001 to 2008. It follows the adventures of two children, Billy and Mandy, and their best friend, the Grim Reaper. The show is set in a surreal version of the modern world, where the Grim Reaper is forced to be the best friends of Billy and Mandy after they win a limbo contest. Together, they go on a variety of adventures, often involving supernatural elements. The show is known for its dark humor and its unique art style. It also features a number of celebrity guest stars, including Johnny Depp, Seth Green, and David Cross. The Grim Adventures of Billy & Mandy is a beloved show that has been praised for its clever writing and its unique take on the fantasy genre. It is a show that will keep viewers entertained and laughing throughout its run