She seems to be the most intelligent of Cletus' children, speaking in correct English (in contrast to the rest of her family) and showing a strong talent for music and performing.
Mary is first seen at the 4-H, sorting out chickens, when she sees Bart having difficulty in feeding and taking care of Lou. After she introduces herself, she points out that Bart's calf, "Lulubelle" (Bart's original name for his calf), is actually a boy, Mary suggests that Bart should call him "Lou" (which Bart says rhymes with "moo"). After Bart and his sister, Lisa, save Lou from being killed in a slaughterhouse, Lisa suggests taking Lou to Mary's family's farm, which Bart agrees to. Upon arriving at Mary's home, Bart and Lisa discover that Cletus Spuckler is Mary's dad—after Bart asks Mary if Lou can live with Mary and her family, Cletus and Brandine (Mary's mom) get really excited by this. When Lisa asks what the big deal is, Cletus and Brandine explain to her and Bart that "according to the 'Law of the Hill-folk'," by giving Mary a cow, Bart's made a formal proposal of marriage—Bart's obviously reluctant to do this, but some convincing from Lisa gets Bart go through with it to prevent Lou from being slaughtered. However, just before Bart and Mary are legally married, Bart and Lisa's mom, Marge, stops the wedding and points out that Bart and Mary are just children and are way too young to get married—Mary's parents call off the wedding, and as a result, Lou's taken back to the slaughterhouse. However, this was actually part of Lisa's plan: the "Lou" in the truck was actually Homer in a costume while the real Lou was put on a plane and sent to India, where cows are considered sacred.
She reappeared in the Season 24 episode Moonshine River as a major character. In the episode, she is deemed as Bart's last hope in his quest to find true love (in the form of one of his many former dates). When Bart arrives at the Spuckler house, Cletus informs him that she ran away after he scheduled her for marriage again. Dubya Spuckler tells Bart that Mary ran away to New York City and gives him her address. Bart and the rest of his family arrive at New York, and he eventually finds her at her address, finding that she has changed, becoming slightly taller and slimmer. Bart and Mary realize that they truly like each other and are about to kiss when Cletus arrives, having somehow discovered Mary's new location, and orders her to return to Springfield with him. While Cletus is occupied, she and Bart sneak away to another train and share their first kiss before Mary departs on the train. When Cletus finds out, he demands Bart to tell her where Mary is going, but Bart, not wanting to ruin this chance of love, refuses. Cletus then accepts the fact that he must let his daughter go.
Mary reappears for the second time in the season, in the episode Love Is a Many-Splintered Thing, again as a major character. In it, Bart, not knowing it is her, puts a bug down her dress, but recognizes her when she angrily calls out for the person who pranked her. She reveals that she was allowed back into the Spuckler household after her career as a model took a downturn, only allowing her thumb to appear in advertisements. Mary then allows him to push her into a pool of mud in order to satisfy Jimbo, Kearney, and Dolph. The two start dating, but Bart spends all of it by playing video games. Despite Lisa's warnings, Bart continues to ignore Mary when she sings a song she wrote for him, and the two break up, much to Bart's dismay. He attempts to win her back, but she turns him down again, saying that she has already started dating a Brazilian boy. By the end of the episode, it is revealed in an assumed future that she has married someone, apparently the same Brazilian, but when Bart sees that her relationship status has become 'Single' seconds later, he sends her a message reading, "I miss you." She responds to Bart's message (in the process revealing that she was widowed) but the exact nature of her reply is unknown. It is not revealed what became of the two afterwards.
Unique among Simpsons characters, Mary's appearance changes in each episode she appears in. Over time she seems to get a bit older, which is rather odd for the typical non-aging Simpsons.
In her debut in "Apocalypse Cow," Mary is depicted with freckles, blue overalls, and pale brown pigtails. However, in her return for "Moonshine River" four years later, Mary's physical depiction has noticeably matured; she has grown slightly taller and acquired a more mature figure, and her eyes have taken on a more attractive ovular shape as opposed to the larger, rounder shape in which they had been set in Mary's debut. Her eyebrows also have thickened, and her pale brown hair has darkened to pale orange. She has kept her freckles; however, she now has pink lips. During this episode, she changes clothing to a black sleeveless dress with a tall black hat to a grey sweater, blue jeans, and red handkerchief in her hair. In "Love is a Many-Splintered Thing", Her appearance is a mixture of her other appearances as she has the same face and body appearance from "Moonshine River", but she loses her pink lips and retains her pigtails from "Apocalypse Cow". She is depicted as wearing a frilly blue dress that has a flower on it with red and white sneakers and knee-high socks.
Unlike most of the Spuckler children, Mary appears to have at least an average education, as she's a prominent member of the 4-H club and is able to use proper English. She is a kind-hearted, calm person. Mary enjoys the arts.
She is probably one of the middle children, as she looks older than her brothers but younger than Whitney. She is probably around Jitney's age.
- Episode – "Apocalypse Cow"
- Episode – "Moonshine River"
- Episode – "Love is a Many Splintered Thing"
- Video game – The Simpsons: Tapped Out
- Book – Homer Simpson Little Book Of Laziness
- Mary's middle name is "WrestleMania," named after the WWF flagship event (now WWE's)
- Mary was born in a gas station.
- Mary got 1580 on her DQAT (800 ice cream, 780 Brazier)
- Mary is the only Spuckler who goes to Springfield Elementary School.
- Mary apparently got to drink milk as a kid instead of paint according to Bart.
- In the episode Yokel Chords, Cletus explained to Lisa that the children present were the only kids in the family, however Mary does not appear.
- She appears rather older at some occasions Moonshine River.
- Mary recently appears in The Simpsons: Tapped Out as a premium character during the County Fair 2017 mini event, who can be bought with the Springfield Opry House for 150 donuts.
The Simpsons Characters
|The Simpsons and relatives|
| Homer Simpson • Marge Simpson • Bart Simpson • Lisa Simpson • Maggie Simpson|
Santa's Little Helper • Snowball II • Abraham Simpson • Patty Bouvier • Selma Bouvier • Mona Simpson • Jacqueline Bouvier • Ling Bouvier • Herb Powell
|Jasper Beardly • Comic Book Guy • Barney Gumble • Maude Flanders • Ned Flanders • Professor Frink • Gil Gunderson • Julius Hibbert • Lionel Hutz • Helen Lovejoy • Reverend Timothy Lovejoy • Captain Horatio McCallister • Akira • Hans Moleman • Marvin Monroe • Bleeding Gums Murphy • Apu Nahasapeemapetilon • Mayor Joe Quimby • Dr. Nick Riviera • Agnes Skinner • Cletus Spuckler • Disco Stu • Squeaky-Voiced Teen • Moe Szyslak • Sam and Larry • Kirk Van Houten • Luann Van Houten • Clancy Wiggum • Eddie • Lou • Crazy Cat Lady • Lindsey Naegle • Cookie Kwan • Wiseguy • Brandine Spuckler • The Yes Guy • Sanjay Nahasapeemapetilon • Blue-haired Lawyer • Judge Roy Snyder • Rich Texan • Luigi Risotto • Old Jewish Man • Mrs. Glick|
|Itchy & Scratchy • Kent Brockman • Krusty the Clown • Troy McClure • Sideshow Mel • Rainier Wolfcastle | Arnie Pye • Radioactive Man • Duffman • Bumblebee Man • Bill and Marty • Drederick Tatum • Mr. Teeny • Scott Christian • Booberella • Gabbo • Lurleen Lumpkin • Celebrities|
|Springfield Elementary School faculty and students|
|Superintendant Chalmers • Seymour Skinner • Edna Krabappel • Elizabeth Hoover • Groundskeeper Willie • Otto Mann • Lunchlady Doris • Dewey Largo • Dr. J. Loren Pyror • Milhouse Van Houten • Ralph Wiggum • Nelson Muntz • Martin Prince • Rod Flanders • Todd Flanders • Sherri and Terri • Wendell Borton • Database • Jimbo Jones • Kearney Zzyzwicz • Dolph Starbeam • Üter Zörker • Janey Powell • Lewis • Richard • Bashir bin Laden|
|Springfield Nuclear Power Plant|
|Charles Montgomery Burns • Waylon Smithers • Carl Carlson • Lenny Leonard • Charlie • Blinky|
|Snake Jailbird • Kang & Kodos • Herman • Sideshow Bob • Fat Tony • Frankie the Squealer • Johnny Tightlips • Legs and Louie|
|The Simpsons • The Bouviers • The Flanders • The Van Houtens • The Wiggums|
|Fictional characters • One-Time Characters • LGBT characters • Parodied celebrities • Animals|