The Simpsons/Groundskeeper Willy

Groundskeeper Willy (voiced by [Dan Castellaneta]?) is the school's groundskeeper, with flaming red hair and a thick Scottish accent. His years of heavy work have given him an amazingly muscled physique, occasionally revealed, notably when he had to crawl through ventilation shafts to retrieve Santa's Little Helper. Needing some assistance to get through the narrow tunnels, he turns to The Simpsons/Lunchlady Doris to coat him with oil, with the memorable line "Grease me up, lassie!".