An Kari McKeen

Kari McKeen is a minor character in The Incredibles. She is a teenager that babysits Jack-Jack during the events of the film. She has a much bigger role in the short, Jack-Jack Attack, being the protagonist.
==Personality==
Kari seems to be very optimistic, and cheery. Even when Jack-Jack is causing mayhem, Kari still has an optimistic tone in her voice, as evidenced during Jack-Jack Attack. She is a friend of Violet, who hires her to watch Jack-Jack when his siblings decide to tag along with their mother. The enthusiastic Kari speaks through "a mouthful of orthodontia," and considers herself an expert on how to deal with babies, using techniques such as playing Mozart to increase their intelligence.
==Physical Appearance==
Kari is a 13-year-old girl with blue eyes, strawberry-blonde hair tied into a ponytail, and she wears braces. She has a slim build and appears slightly shorter than Violet.
==Biography==
===The Incredibles===
Violet arranged for Kari to babysit Jack-Jack while Violet and Dash sneak aboard the Helen's jet. Helen is not entirely confident about a teenage girl watching over her infant son, preferring a full-grown adult do that job instead (which ultimately does happen, but with far worse results than Kari's oversight of Jack-Jack). Helen calls Kari to ask if Kari knows what she is doing, to which she tells Helen she has it covered.
Kari ultimately has a very hard time babysitting Jack-Jack when his powers suddenly manifest. When Syndrome knocks on the door, she leaves Jack-Jack with him believing to be her replacement. Kari leaves a message while Jack-Jack is using his powers, claiming that he has 'special needs', confusing Helen. She tells Helen she left him with a babysitter, which the Parrs almost immediately find is Syndrome.
===Jack-Jack Attack===
The short begins with Rick Dicker interrogating Kari over her experience babysitting Jack-Jack. Kari begins by stating that she received a call from Helen, who expresses reluctance about allowing Kari to babysit, but assures her she has it covered.
At the Parr Family Residence, Kari begins by playfully asking Jack-Jack if he is ready for some "neurological stimulation". She begins by playing Mozart's Piano Sonata No. 11 for him, which has the result of Jack-Jack having an epiphany about his latent superpowers.
When Kari's back is turned, Jack-Jack seems to disappear and reappear in the kitchen. Finding this odd, Kari tries calling Mrs. Parr again. While she is leaving a message, Jack-Jack floats onto the ceiling and spills milk onto Kari's face. Kari puts him in his playpen, but he escapes. She finds him floating through the kitchen walls, and catches him.
Kari takes Jack-Jack back upstairs and ties him to a barbell. Then, to calm him down, Kari tries showing him flashcards. This works well until she shows him a card of a campfire, at which point he suddenly bursts into flames. Horrified, Kari picks up Jack-Jack with a pair of fireplace tongs and rushes into the bathroom, where she douses him in the bathtub.
The next day, Kari is shown to be exhausted, with the house looking like a pigsty. She is able to protect herself from Jack-Jack by counteracting his powers. There is a knock at the door; Kari answers it and meets Syndrome, who asks if this is the Parrs' residence. Kari thinks he is the new babysitter who has come to relieve her, but wonders what the "S" on his costume stands for. He claims it stands for "Sitter", because if he called himself "Babysitter", his uniform would have to say "BS" on it.
Cutting back to the interrogation scene, Dicker is incredulous that Kari believed Syndrome, while Kari in her defense shouts that she was not in a sound state of mind at the time. Dicker asks Kari if she told anyone else about the incident, to which she replies that she did tell her parents, who didn't believe her and thought she was joking. As Kari expresses her wish to forget the whole thing, Dicker promises that she will, and activates a device to erase her memory, causing her to pass out.
==Trivia==
*Kari and her parents were originally planned to make an appearance in the sequel, but were removed because of story restrictions.
*In Ratatouille, another Pixar film, Kari makes a cameo appearance as a silhouette in an apartment window.