- For Willie Nelson, see that article. For the character Willie Nelson plays, see Willie Nelson (character).
- “Then, grease me up woman!”
- “Save yer strength, lad! There's a whole field for you to resod yet!”
- ―First lines to Bart[src]
- “Guess there's some stones in your leaf bag, after all.”
- “Save me from the wee turtles! They were too quick for me!”
- “Uh-oh. The little fat boy and his family are in trouble.”
- “"Willie hears ya, Willie don't care."”
- “Brothers and sisters are natural enemies, like Englishmen and Scots! Or Welshmen and Scots! Or Japanese and Scots! Or Scots and other Scots! Damn Scots! They ruined Scotland!”
William Sean McLavel, also known as G.K. Willington Esquire, and William MacMoran (born 1940, age 50) 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.
- 1 Biography
- 2 Non Canon Appearances
- 3 Behind the Laughter
- 4 Quotes
- 4.1 Treehouse of Horror VI
- 4.2 Treehouse of Horror V
- 4.3 Yokel Chords
- 4.4 Marge Gets a Job
- 4.5 Homer the Heretic
- 4.6 Sweet Seymour Skinner's Baadasssss Song
- 4.7 The Cartridge Family
- 4.8 Who Shot Mr. Burns?: Part Two
- 4.9 Radio Bart
- 4.10 Postcards from the Wedge
- 4.11 The Color Yellow
- 4.12 Lisa the Vegetarian
- 4.13 Home Sweet Home-Diddily-Dum-Doodily
- 4.14 Treehouse of Horror IV
- 4.15 Moms I'd Like to Forget
- 4.16 Bart's Girlfriend
- 4.17 The Debarted
- 4.18 Lisa Simpson, This Isn't Your Life
- 4.19 Mypods and Boomsticks
- 4.20 Simpsoncalifragilisticexpiala-Annoyed-Grunt-cious
- 4.21 Monty Can't Buy Me Love
- 4.22 The Joy of Sect
- 5 Trivia
- 6 Gallery
- 7 Appearances
- 8 Citations
Willie is the groundskeeper at Springfield Elementary School and is a stereotypical angry Scotsman with a heavy Scottish accent. He worked in the same amount of years as Principal Skinner. He was originally hired at Springfield Elementary as "Swim Teacher Willie." Unfortunately, after Skinner was trapped in the worm-filled pool for three days, he had the pool destroyed, and made Willie a groundskeeper. On weekends and during summer vacations, Willie tends to the golf course at the Springfield Glen Country Club, giving himself the appropriate renaming of "Greenskeeper Willie." He has claimed to originate from several different places in Scotland, and frequently gives contradictory accounts of his past life before arriving in Springfield. Willie once told a story of working at a mine that caved in, saying "No one made it out alive, not even Willie!" Also Willie once told Skinner that he had seen his own father hanged for stealing a pig although both of his parents can be seen alive in Scotland later. It is possible that Willie has a murderous past as we are told he is the spitting image of the Aberdeen strangler, an affirmation which he doesn't deny, innocently whistling by. However, it is likely he only kills unintentionally: he accidentally killed the boy who became the playground ghost of Springfield Elementary, all because of his sassy mouth.
Willie is incompetent and is quick to anger for little or no reason. He has shown great animosity towards both Principal Skinner and Bart Simpson, the latter of whom is often more than willing to make Willie the butt of his jokes. Twice, Bart destroyed Willie's shack: the first out of revenge for taking his skateboard; the second accidentally. Superintendent Chalmers once said that he never yelled at Willie like he does at Skinner because he liked him. At one time, Skinner quit and Chalmers replaced him with Willie as both Principal and Groundskeeper, though he never increased his salary, much to the Scotsman's disappointment.
Willie once discovered an oil well by accident because he was attempting to bury the school hamster. Because of the school's new wealth, he requested a crystal pail. However, after Mr. Burns stole the oil, which not only resulted in the loss of the school's newly gained fortune, but also causing the school to go into an even worse financial state than before due to the cost of dismantling the oil tower, Skinner was forced to lay off Groundskeeper Willie, in order to preserve the remaining school budget, causing Willie to wish to murder Mr. Burns and seriously injure Mr. Smithers. When interrogated by the police, he answers that he wasn't able to because of arthritis in both of his index fingers, preventing him from utilizing a pistol, which he got "from space invaders in 1977" and implying right after that he doesn't even know what a video game is, asking ignorantly "Video game?" and therefore pretending to have fought aliens for real. However, he fired a rifle at a weather balloon vandalized by Bart; it's as if handling a pistol and handling a rifle are two separate things to him. Later, he was seen shooting an empty pistol in the Springfield County Court House with pinpoint accuracy, indicating that his arthritis may have been fixed. He once had a cache of "screw you money", but he ended up losing it all, presumably due to Artie Ziff cheating out ZiffCorp's shareholders.
Willie's hobbies include videotaping couples in cars, something which proves to the benefit of Homer Simpson when he is wrongfully accused of sexual harassment. At one time, Willie was engaged to Shary Bobbins until she recovered her eyesight—at which point, in Willie's words, "Suddenly the ugliest man in Glasgow wasn't good enough for her!" Willie was once given the job of teaching Bart Simpson. Lisa had taken a restraining order against Bart, so he couldn't legally go to the same school. Willie became Bart's teacher because, according to Principal Skinner, Willie's shack is the only place on the school grounds that "falls outside all laws of Man or God."
He also took part in the Medieval Festival, but he disrupted it and Principal Skinner expelled Bart who had mistaken him as the one who disrupted it; Willie later explained to Skinner that he was the one who was disrupted the festival. Principal Skinner then realized his mistake and welcomed Bart back as an apology and was then scolded along with Willie by Superintendent Chalmers for expelling the wrong culprit. He also held a particular hatred for the holiday of Easter, which he implied was because of his Scottish ancestry. This hatred was such that he proceeded to sabotage a celebration of the holiday by rigging the various musical instruments with eggs, thus having the band unknowingly spray eggs at the audience when playing the instruments, and then framing Bart for it, which was serious enough to nearly get Bart expelled from school and worse. After he was exposed, it was implied that he lost his job as groundskeeper and spent a few years at the Penitentiary as a result (although oddly, he has his job back by the next episode).
Willie's years of heavy work have given him amazing strength and a very muscular physique, which has been observed many times as he often tears his clothes off, before accomplishing hard tasks or because of outbursts of rage. For example, he rescues Bart from a marauding Alaskan timber wolf by wrestling it into submission. Much like Ned Flanders, though, his physique is unremarkable when he is clothed, and seemingly morphs as soon as he is partially nude. Apparently, he has had sexual attractions to Sarah Ferguson, Duchess of York (more commonly known as "Fergie"), as he had mentioned while hallucinating as an after effect of Seth and Munchie's Peyote-laced juice (which was thanks to Homer) that he waited a long time for the moment where he could embrace Fergie passionately.
Willie is recognisable for his thick, angry Scottish accent and his shaggy mane of red hair and scruffy beard. Willie's fiery temper, drinking problem and dysfunctional stability in his own life make him unfit to be around, let alone take after children and the only reason that he seems to be able to keep his job is because Skinner and Chalmers pay him relatively nothing for his groundskeeping duties.
It is implied that Willie has killed a student at least twice. When a ball was shredded underneath his tractor, he screams in horror that he ran over another child again. He claims to be haunted by the ghost of a deceased student when he confused Bart for him and after Bart left the scene, a young ghost actually did appear with a rake impaled through its chest (insinuating murder). Willie is homeless and lives in his utility shack on the school grounds which is heavily dilapidated (on one occasion he dreamt that he was in his shack when he was actually passed out drunk in a snowy field). His shack has been destroyed twice (both times because of Bart) when he overflowed it with macaroni and cheese out of revenge for Willie stealing his skateboard and the second time was accidentally demolished by a frozen dodgeball which was intended at his gym teacher. Despite its shabbiness, Willie is emotionally attached to his shack as he missed it greatly when he quit his job and became a waiter.
Willie has a very bizarre way of speaking. His heavy accent makes most of his sentences sound nonsensical and complete gibberish. His writing sentences are also heavily accented to match how he speaks, implying he is also illiterate. Whenever Willie insults someone he goes into a long-drafted retort that is gruffly spoken such as "you cheese-eating, surrender monkeys" to a class of French students and "you nose-combing, hair-wipers" to Skinner and Chalmers. It's implied that Willie's speech pattern is a result of brain damage due to a constant concussion by hitting himself on the head with a hammer to get to sleep.
Willie is a heavy drinker and is usually quite drunk on the job. In these instances he drives his tractor, swerving drunkenly and ploughing everything in his way, once crashing into the pool by accident. He claims to "get so drunk I can barely see, but it helps me get through another day". Despite this, Willie seems to have a passion for his job such as keeping the lost retainers that he finds from children and turning them into a sculpture. Even after Lisa gave him a better life as a waiter and with a presumably high pay raise, Willie still missed his old job as a groundskeeper.
Willie regularly fights animals such as an Alaskan timber wolf and a mule, with the intention of eating the latter after holding him down. However, he is quite fond of animals such as giving the timber wolf a drink from his own flask after being victorious, planning to rescue the turtles when the school fire alarm was pulled but was overpowered by them later on, reacting with joy when Santa's Little Helper noticed him through a window and giving a snake a home as a fire hose for the school when he was abandoned by Bart.
Outside of his groundskeeping tendencies, Willie seems to work for Mayor Quimby and the town in general. Presumably due to his constant manual labour Willie is in excellent physique whenever he rips off his clothes and reveals he is actually very muscular which is odd as his clothes tend to give him a pot belly.
Non Canon Appearances
Treehouse of Horror
Willie has a tendency to get killed in the Treehouse of Horror episodes, getting killed three times in Treehouse of Horror V (by Homer Simpson, Maggie Simpson and Principal Skinner), each time he attempts to be helpful or heroic, and each time he is felled by an axe in the back (he mutters, "Ach, I'm bad at this." after the third time). He is also killed in Treehouse of Horror VI by accidentally being burned to death (and later attempting to get revenge on the PTA's children in their nightmares as Freddy Kruger, although he somehow ends up being revived shortly after Maggie kills him in their dreams), in Treehouse of Horror XI by a dolphin, in Treehouse of Horror XVI he is strafed and killed by Burns, in Treehouse of Horror XVIII by getting his head cut off by the tractor, and in Treehouse of Horror XIX by being eaten by the Grand Pumpkin although this doesn't really kill him as the Grand Pumpkin is hollow inside.
Willie appears as one of the contestants in the Duff Ultimate Eating Challenge in the level Around the World in 80 Bites - he blocks off the Scotland area from the other contestants until it is opened by Bart. In the ending cutscene of the level, he also ends up re-enacting the famous final words of Planet of the Apes when seeing the destroyed Statue of Liberty, causing Comic Book Guy while walking by to criticize him. He also appears in Mob Rules as one of the people Marge can use in her mob to protest the sales of the Grand Theft Scratchy videogame to minors.
Behind the Laughter
Groundskeeper Willie's first appearance was in "Principal Charming". Originally, the character was just written as an angry janitor, and the fact that he was Scottish was added during a recording session. Dan Castellaneta was assigned to do the voice. Castellaneta didn't know what voice to use and Sam Simon, who was directing at the time, told Castellaneta to use an accent. He first tried using a Spanish voice, which Simon felt was too clichéd. He then tried a "big dumb Swede", which was also rejected. For his third try, he used the voice of an angry Scotsman, which was deemed appropriate enough and was used in the episode. Originally thought by the directors to be a one-shot appearance, Willie has since become a common recurring character. Matt Groening would later reveal that the character was based on Angus Crock, a kilt-wearing chef from the sketch comedy show Second City Television, who was portrayed by Dave Thomas.
A recurring joke, which was first shown in "Radio Bart", is that Willie appears to have a pot belly, but whenever he takes off his shirt, he is quite muscular. One of Willie's trademarks is a gruffly-spoken insulting retort, which take the writers a long time to come up with, although they do not consider them that funny.
Cultural influence and legacy
Groundskeeper Willie's description of the French as "cheese-eating surrender monkeys" from the episode "'Round Springfield" has become widely used, particularly in the run-up to the war in Iraq. The New York Post used the phrase "Surrender Monkeys" as the headline for its December 7, 2006 front page, referring to the Iraq Study Group and its recommendation that U.S. soldiers be withdrawn from Iraq by early 2008. The line was "most likely" written by Ken Keeler.
The Times reported in late 2005 that "he is the most instantly recognizable Scot in the world: better known than Billy Connolly or Ewan McGregor, even Sean Connery." The same article quotes Simpsons creator Matt Groening as saying "We wanted to create a school janitor that was filled with rage, sort of our tribute to angry janitors all over the world".
In 2006, Groundskeeper Willie would be named the fourth best peripheral character in the history of the show by IGN, who said "high-points for the character were being trained to be civilized, wrestling a wolf that was let loose in the school and becoming a substitute for the French language teacher - 'Bon jourrr! You cheese-eating surrender monkeys!'" IGN would also name "My Fair Laddy", the only episode which centers around Willie, the best episode of the seventeenth season. Jim Slotek of Sun Media would call Willie the ninth best Simpsons supporting character, and also made a Top Ten quotes list, which included Willie's quote "Och, back to the loch wi' you, Nessie." from "Selma's Choice".
There have been some moments in the show where he has been known to imitate Montgomery Scott of Star Trek fame.
[after Willie explodes into flame and screams, he becomes a skeleton]
Groundskeeper Willie: You'll pay for this, with your children's blood!
Chief Wiggum: Oh, right. How you going to get them? "Skeleton power"?
Groundskeeper Willie: I'll strike where you cannot protect them...in their dreams.
[while Bart is playing frisbee with Santa's Little Helper, Willie arrives at his front yard]
Groundskeeper Willie: Glad to rake your acquaintance! [laughs evilly and cuts Bart with his rakes]
[Bart wakes up screaming]
Bart Simpson: [sighs] It was only a dream.
[Bart sees the scratches on his body and yells]
Homer Simpson: [from elsewhere, sounding worried] Bart! Is that you?
Bart Simpson: Yes.
Homer Simpson: Take out the garbage.
[in his dream, Martin is dressed as a wizard]
Martin: I am the wondrous wizard of Latin! I am a dervish of declension and a conjurer of conjugation with a million hit points and maximum charisma!
[Martin spots a blackboard with verbs written all over it]
Martin: Aha! "Morire": to die. "Morit": he, she or it dies!
[Willie morphs out of the blackboard; Martin gasps]
Groundskeeper Willie: "Moris": you die!
Martin: [runs off screaming]
Groundskeeper Willie: [chortling] You've mastered a dead tongue, but can you handle a live one?!
[Willie's tongue shoots out of his mouth, wraps around Martin, and squeezes him]
[in class, Martin twists and screams, then collapses on the floor]
Nelson: Ha ha!
[Principal Skinner is having a meeting with parents, but a burning Willie rushes into the room]
Groundskeeper Willie: Gaah! Help! Please help me!
Principal Skinner: Willie, please. Mr. Van Houten has the floor.
Kirk Van Houten: I, for one, would like to see the cafeteria menus in advance so parents can adjust their dinner menus accordingly. I don't like the idea of Milhouse having two spaghetti meals in one day.
[before anyone could answer, the entire class looks directly at Willie, who explodes into flame and screams]
Bart Simpson: Hey! I found a shortcut through your hedge maze.
Groundskeeper Willie: Why you little...
Groundskeeper Willie: [thinking] No, go easy on the wee one. His father's going to go crazy and chop them all into haggis.
Bart Simpson: What's haggis?
Groundskeeper Willie: [gasps] Boy, you read my thoughts. You've got the shinning.
Bart Simpson: You mean "shining".
Groundskeeper Willie: Shh! You want to get sued? Now look, boy, if your Dad goes gaga, you just use that shin of yours to call me and I'll come a-running. But don't be reading my mind between four and five. That's Willie's time.
Groundskeeper Willie: Hold on, kids! I'm coming to rescue the lot of you. [Skinner hacks Willie in the back with an axe for the third time] I'll...ow! Ah...I'm bad at this.
[falls down dead]
Marge: [Bart awakens from a nightmare] Relax, honey. You were just having a crazy nightmare. You're back with your family where there's nothing to be afraid of, except that fog that turns people inside out.
[the fog starts to come in]
Homer: Uh-oh. It's seeping in. Stupid, cheap weather stripping!
[everyone screams as the fog turns them inside out; then they stop screaming, looking at each other. Music plays, and they start dancing and singing]
Marge, Bart, Homer, Lisa: One! Chorus line of people, dancing till they make us stop!
Groundskeeper Willie: [jumps on stage inside out] Too!
Marge, Bart, Homer, Lisa,
Groundskeeper Willie: Many dancing people, covered in blood, gore, and glop! Just one sniff of that fog and you're inside out! It's worse than that flesh-eating virus you've read about! Vital organs, they are what we're dressed in. The family dog is eyeing Bart's intestine! Happy Halloween!
Groundskeeper Willie: You're still not in your own world, Homer. I can get you home, but you have to do exactly as I...
[gets killed by Maggie who hits him with an axe]
Maggie: This is indeed a disturbing universe.
Principal Skinner: Willie, go get those kids and bring them back!
Groundskeeper Willie: I'll bring 'em back dead or alive!
Principal Skinner: NOT dead.
Groundskeeper Willie: Aww, ya never let Willie be Willie!
Groundskeeper Willie: [a wolf is attacking Bart] Hey, Wolfie. Put down that hors d'oeurve. It's time for the main course.
[Willie shares a flask of Scotch with the whipped wolf]
Groundskeeper Willie: Don't feel bad for losing. I was wrestling wolves back when you were at your mother's teat.
[on Sunday, the church doors are frozen shut by the blizzard outside; as the cold congregation waits, Willie applies a blowtorch]
Reverend Lovejoy: How's that door coming, Willie?
Groundskeeper Willie: Miracles are your department, Reverend!
Groundskeeper Willie: Lunchlady Doris, have you got any grease?
Lunchlady Doris: Yes. Yes we do.
Groundskeeper Willie: [rips open his shirt] Then grease me up, woman!
Lunchlady Doris: Okie doke.
Groundskeeper Willie: You call this a soccer riot? Come on, boys. Let's take 'em to school!
Groundskeeper Willie: I'm telling ye, I could nay have shot Burns. [crosses his legs, but briefly shows his bare crotch while doing so, causing Wiggum, Lou and Eddie to groan]
Eddie: [cocks his gun and points it at Willie] This is your last warning about that.
Groundskeeper Willie: It's impossible for me to fire a pistol. If you'll check my medical records, you'll see I have a crippling arthritis in me index fingers. [holds up his fingers, which are misshapen] Look at them! I got it from Space Invaders in 1977.
Chief Wiggum: Yeah, that was a pretty addictive video game.
Groundskeeper Willie: Video game?
[while digging a mine shaft to rescue Bart from a well]
Apu: [gasps] The canary.
Groundskeeper Willie: Gas! Out of the whole! [everyone runs out yelling; above ground, Dr. Hibbert examines the canary]
Dr. Hibbert: Gentlemen, this canary died of natural causes.
Groundskeeper Willie: Back in the hole! [everyone runs back in yelling, except Dr. Hibbert]
Groundskeeper Willie: Hoisting a bag. Aye, there's no better feeling on Earth.
Groundskeeper Willie: Well done, boy!
Bart Simpson: [after blowing up a tree stump] Wait! Here comes the My Kia!
Groundskeeper Willie: What's a "My Kia"?
[The stump falls on Skinner's car]
Principal Skinner: My Kia!
- Principal Skinner: Uh oh. Two independent thought alarms in one day. The students are overstimulated. Willie, remove all the colored chalk from the classrooms.
- Groundskeeper Willie: I warned you! Didn't I warn you? That colored chalk was forged by Lucifer himself!
[Skinner watches as Willie burns Bart's lice-infested clothes]
Groundskeeper Willie: See you in hell, you wingless blood-suckers!
Principal Skinner: What kind of parents would permit such a lapse in scalpel hygiene?
Groundskeeper Willie: You'd better check out his sister. She could be rife with them bugs too.
[Bart is hanging out the window of the school bus, and Principal Skinner and Groundskeeper Willie are trying to pull him back in]
Principal Skinner: Pull, Willie! Pull!
Groundskeeper Willie: I'm doin' all the pullin', ya blouse-wearin' poodle walker!
Groundskeeper Willie: You call that a scar? This is a scar!
Nelson Muntz: That's a belly button. Everybody's got one.
Groundskeeper Willie: [sad] I thought I was special.
Groundskeeper Willie: [speaking about Scottish history and culture] The kilt was only for day-to-day wear. In battle, we donned a full-length ball gown covered in sequins. The idea was to blind your opponent with luxury.
[Bart comes over to Willie, and ties a pair of balloons to his kilt, and leaves. The balloons rise up, causing Willie's kilt to rise up and expose his crotch, much to the shock of the audience]
Groundskeeper Willie: Ah, 'tis no more than what God gave me, you puritan pukes.
Groundskeeper Willie: I have some information for you, but it's gonna be hard to hear.
Bart Simpson: Why, because of your stupid accent?
Groundskeeper Willie: Ach, nay! Because of its upsetting nature.
Lisa Simpson: [walking down the hall at school] Ugh. What's the point of getting rid of all the distractions at home if I have to do my learning here?
[walks into the library and opens a book, smiles]
Groundskeeper Willie: [walks into the library, and runs a loudly whirring floor waxer while singing] Oh, I'll wax the upstairs and I'll wax the downstairs, and I'll get drunk in the library!
Lisa Simpson: [annoyed] Willie! Do you have to wax this floor now?
Groundskeeper Willie: [turns off waxer] No, no. I can come back later. [turns around to leave and slips on the waxed floor, landing with a loud crunch. He screams in pain]
Lisa Simpson: [concerned] Oh! Should I get the nurse?
Groundskeeper Willie: Nay, just keep studyin'. I'll scream this out. [writhing on the floor]
Bart Simpson: You're new here, so here's what you need to know: we call Principal Skinner "Principal Skin-rash", Professor Weiner is "Professor Whiner", and Groundskeeper Willie is "Grounds-Creepier Stupid".
Groundskeeper Willie: That's not even clever. There are so many aspects of my personality you can mock. I'm poor, I'm illiterate, I think movies are real.
Groundskeeper Willie: [after performing his one man band talent] Thank you, you ungrateful bast...! [sees Shary Bobbins with Bart, Lisa and Maggie] Shary Bobbins! Is that you?
Shary Bobbins: Hello, Willie.
Lisa: You know her?
Groundskeeper Willie: Aye. Shary Bobbins and I were engaged to be wed back in the old country. Then she got her eyesight back. Suddenly the ugliest man in Glasgow wasn't good enough for her.
Shary Bobbins: It's good to see you, Willie.
Groundskeeper Willie: [angry] That's not what you said the first time you saw me!
Mr. Burns: [after draining Lake Loch Ness, he sees something resembling it] I see it it! I see the monster!
Groundskeeper Willie: [once all the water is drained] Nay. 'Tis merely Loch Ness High School's discarded Homecoming float.
Homer: [they walk into the drained lake and Homer sees "STOMP ABERDEEN!" painted on it] No way! Aberdeen rules!
[the real Loch Ness Monster appears, crushes the float and roars. Mr. Burns, Homer, Groundskeeper Willie and Professor Frink all gasp. Homer looks at his Nessie-like "Macarena Monster" doll, then looks at Nessie]
Homer: My God, it's him!
Mr. Burns: Come on, boys, overpower it.
[Groundskepper Willie, Homer, and Professor Frink walk away, whistling]
Mr. Burns: Fine. I'll do it myself.
[takes off his blazer and tie and rolls up his sleeves. Eventually, Nessie is being held in a net under a helicopter, with Burns, Willie and Homer inside]
Groundskeeper Willie: That was amazing, Mr. Burns.
Mr. Burns: I was a little worried when he swallowed me, but, well, you know the rest. [sighs] And now for my triumphant return to Springfield.
Groundskeeper Willie: [Homer, Bart, Lisa and Maggie are tied up in a dark room with a small dim light on] Oh, you're gonna break like matchsticks. I promise you that.
Ned Flanders: [enters the room and turns on the big light] I made some Rice Krispy Squares for our hungry deprogram-erinos.
Groundskeeper Willie: Oh, man! You ruined the atmosphere, you daft pansy!
Ned Flanders: Well, this is my rumpus room.
Groundskeeper Willie: [sputtering] Don't call it that!
- In Simpsons Comics, it is implied his last name is MacMoran. However, in "My Fair Laddy", he claims he does not have a last name. In another episode, he gives his name as "Dr. William MacDougal" to a customs official at Ellis Island.
- Willie thinks that movies and video games are real, such as an incident in 1977 when he thought he was saving the world from a real alien invasion by playing Space Invaders.
- Willie lives in a shack behind Springfield Elementary School.
- Willie uses Propecia, a drug for male pattern baldness, to keep his chest hairy.
- In The Simpsons: Tapped Out, Principal Skinner reveals that Willie gets paid more than him.
- Willie was implied to have a sociopathic hatred of the town, as when he was running for mayor during Do What You Feel Day, claimed in a stump speech that, as soon as he was made mayor, he will kill all of the citizens and then burn the entire town to the ground, and mentioning that he is fully aware that the microphone was on.
- In "Bart-Mangled Banner", Willie claims to have been deaf all along since the Boiler Explosion of 1988, saying that any time he is seen replying to someone, he is simply reading their lips. He spends the rest of the episode misunderstanding most everyone who speaks to him, despite the fact that Willie has never been shown having this problem before or since. This is disproved in "Grade School Confidential", where he says that he can hear Seymour Skinner talking through a megaphone on the school roof, despite facing away from him ("Willie hears ya. Willie don't care").
- In the Italian dub of the show, Willie is known for speaking with a strong Sardinian accent, as well as occasionally referencing to allegedly hailing from Sardinia instead of Scotland.
- It is generally regarded that the character's name is spelled "Willie", but his tractor has his name spelled as "Willy" on the side.
- He framed Bart twice. The first time was when he disrupted the Medieval Festival, which Principal Skinner mistakenly blames Bart and expels him, but he was welcomed as an apology and he and Groundskeeper Willie are then suspended for blaming him. The second time was when he disrupted the Easter festival and he is then fired.
- Despite being a well known character, Willie dosen't have a role in the story mode of The Simpsons: Hit & Run, although he does have a brief cameo in the ending for Chapter 5 where he was on the Foolish Earthlings channel where he accidentally walked on a rake and yells "I'll knock ye knockers!" before running off to attack someone.
- In "Stark Raving Dad", he appears black and has a white beard and white eyebrows. This might have been an animation goof.
- In "Orange is the New Yellow", it is revealed that Willie coaches rugby.
- He is right-handed.
Note: Bold letters are for Willie-centered episodes or new relevant details about the character in an episode. Regular parenthesis indicate nonspeaking appearances or pictures.
- The Daughter Also Rises
- Lard of the Dance
- The Principal And The Pauper
- Pranks and Greens
- Lost Verizon
- The President Wore Pearls
- I Love Lisa
- Monty Can't Buy Me Love
- The Dad Who Knew Too Little
- Homer the Father
- Girly Edition
- My Fair Laddy
- Lisa Simpson, This Isn't Your Life
- Flaming Moe
- Who Shot Mr. Burns? (Part One)
- Who Shot Mr. Burns? (Part Two)
- Bart's Comet
- The Great Money Caper
- The Ziff Who Came To Dinner
- Homer Badman
- Simpsoncalifragilisticexpiala(Annoyed Grunt)cious
- On a Clear Day I Can't See My Sister
- The Father, the Son and the Holy Guest Star
- Dark Knight Court
- Marge Gets a Job
- D'oh-in' in the Wind
- 'Round Springfield
- The President Wore Pearls
- My Fair Laddy
- Marge Gets a Job
- Bart's Inner Child
- The Father, the Son and the Holy Guest Star
- Dark Knight Court