Groundskeeper Willie

Dr. William "Willie" MacDougal III, also known as G.K. Willington Esquire, and William MacMoran, (voiced by Dan Castellaneta) is the groundskeeper and janitor of Springfield Elementary School who's originally from Scotland. Willie's job is to supervise the children of the School during recess, and clean the halls. He is recognizable with his red hair and thick Scottish accent. He is often either a formidable enemy or an invaluable ally to Bart and Lisa Simpson; mostly, he has a strained relationship with Principal Seymour Skinner. Willie's either originally from the Scottish city of Kirkwall or a place called North Kilttown, which is likely a reference to the hamlet of Domaduir, near Kyle of Lochalsh. He is 50 years old.