Groundskeeper Willie
The Simpsons character
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Willie Sean Moran MacDougal, better known as Groundskeeper Willie, is a recurring character on The Simpsons, voiced by Dan Castellaneta. He is the head groundskeeper and Janitor at Springfield Elementary School. Willie is almost feral in nature... Wikipedia
Played by: Dan Castellaneta
Rivals: Seamus
Created by: Matt Groening
Family: Mr. MacDougal (father); Mrs. MacDougal (mother); Gravedigger Billy (cousin); Ben (uncle)
First appearance: "Principal Charming"; February 14, 1991