Original: In television commercials, the clown inhabits a fantasy world called McDonaldland, and has adventures with his friends Mayor McCheese, the Hamburglar, Grimace, Birdie the Early Bird, and The Fry Kids.
Simplified: He lives in McDonaldland, with lots of others including Grimace, the Hamburgler, Birdy the Early Bird, Mayor McCheese, and the Fry Kids.