"Daddy, it is so hot out here you could lay an egg on the sidewalk!"—Kelly Bundy
Kelly Bundy is the eldest child of Al and Peggy Bundy, the sister of Bud Bundy, and is notorious for her extreme stupidity (which may or may not have been inherited from her father) and promiscuity (which may or may not have been inherited from her mother), much to the dismay of Al. In the early seasons Kelly was also notable for a publicly expressed dislike of her family, and shame in being a Bundy (once regarding being called a Bundy a fightable offense), but has always disregarded her own safety, popularity and opinion in order to rescue or avenge them in some sort of fashion. Kelly also is well known for holding the comic strip of the over-eating cat, Garfield, reading aloud (while horrendously mispronouncing) the words.
Kelly Bundy was born to Al Bundy and Peggy Wanker in November of 1971. It has been mentioned in several episode that she was conceived in Al's Dodge, and in one particular episode, conceived the night Al scored his Four Touchdowns while celebrating with his then girlfriend, Peggy at a drive-in theater.  (Though if she was conceived on the night Al scored four touchdowns, that would mean she was born closer to 1966).
But in one case, Al clearly stated that Kelly was conceived at home while he was watching the television series, Get Smart and had to put his forearm in Peggy's mouth so he could hear the show's dialogue. (though the series had already ended in May of 1970, more than a year before Kelly's listed birthdate)
She already appeared to be a student at Polk High School at the beginning of the series. She graduated from the school in 1990, though it was mentioned in several episode that she was held back. She also graduated late due to her mother swapping out Kelly's final project (a plate of Jell-O) with hers (crown rack of lamb that was ruined due to Al) for Home Economics class. This allowed Peggy to officially graduate from Polk High with the others, while Kelly was forced to take a summer remedial class.
As she was not cut out for college, she originally tried her hand at modeling at a local modeling school. The skills she learned there helped her get some jobs, such as modeling for the new Allante and becoming Miss Weenie Tot. Eventually, the school was shut down after they moved upstairs from their original location, but none of the models could find it. After trying out several different careers, she went back to school for acting, studying at the Larry Storch School of Acting.
Kelly is known for her stupidity and promiscuity, both of which are routinely mocked by her family, particularly Bud. She has had a prodigious amount of partners throughout the series, and is generally considered very beautiful, although her choice in men appears dubious, with most of them ending up beaten up and kicked out by Al.
Her intelligence is also the topic for insult, although the extent of her stupidity appears to be fluid, varying from episode to episode, season to season. She originally appeared to be of fairly average intelligence, albeit not very keen to put it to use, though later seasons amped this up to her being unable to grasp common concepts, let alone read properly.
It is implied in the show that she was fairly intelligent as a young girl, as well as a voracious reader, but that a head injury during a car trip reduced her intelligence. Despite this, Kelly does show moments of very high intelligence, or at least street smarts on rare occasions.
Although she is usually portrayed as dumb, she does show that she is actually knowledgeable in math and physics, such as in T*R*A*S*H, when she is able to precisely calculate the trajectory to launch trash in to the D'Arcy's attic with a catapult and in Cheese, Cues and Blood when she is demonstrates her knowledge of angles in a game of billiards.
It was also pointed out by Bud that her memory is rather limited, meaning that for every new fact she learned, she would completely forget another fact that she had previously learned. This would prove fatal to her Dad's hopes for a new TV when Kelly appeared on a sports trivia quiz show in Kelly Knows Something.
Kelly was portrayed to be fairly popular in high school, and also appeared to be a bully and a "mean girl", similar to Al, who himself was both popular and a bully in his youth. She did not take school seriously, as she was often portrayed as ditching classes to hang out with friends or hide her report card since they often had low grades.
Bud and Kelly fight frequently, and constantly mock each other. Kelly frequently punches and shoves her brother. Despite this, Kelly does love Bud. When a popular girl mocked him, Kelly got revenge on his behalf.
Kelly Bundy is generally considered a very beautiful young woman. She has long blonde hair, and a propensity for revealing clothing. In later seasons however, she keeps her hair shorter, and dresses more modestly, since she eventually matures and starts living life as an adult.
- It's implied that one of the several jobs that she had before being an actress, may have been as a prostitute, though this is more likely an insult directed at her promiscuity. Christina Applegate actually played a prostitute in the 1990 film Streets, however.
- Kelly shares the first line and the last line of the entire show, as well as being the last character seen entirely (Peggy was the first to be seen). Kelly's first line was in the pilot: "Let go of my hair you little psychopath!", and the last was "Them...hahahaha!".
Appearances on the show
- It's a Bundyful Life (Part 2)
- NO MA'AM (episode)
- Al Goes to the Dogs
- The Stepford Peg
- The House That Peg Lost
- One Down, Two to Go
- Driving Mr. Boondy
- Kelly's Gotta Habit
- Rock and Roll Girl
- Weenie Tot Lovers and Other Strangers
- Kelly Does Hollywood (Part 1)
- Kids! Wadaya Gonna Do?
- Kelly Doesn't Live Here Anymore
- Luck of the Bundys"
- The Goodbye Girl
- Rain Girl
- Al Loses His Cherry
- Old Insurance Dodge
- Requiem for a Chevyweight (Part 1)
- Top of the Heap (episode)
- Peggy Made a Little Lamb
- Kelly Bounces Back