Justine Flanner[1] is a highly intelligent Middleton High School student. She is well-known for her stellar performances at science fairs.


Justine is very aware of just how smart she is, and as a result, is also aware how much smarter she is than most other high school students. Therefore, she does not expect many people her age to understand or appreciate her work in science. Justine tends to be slightly conceited and considers herself superior because of her intelligence, although since even established, experienced scientists are humbled by her work, Justine's opinion of herself is not exactly without merit.


Justine is a very intelligent and gifted scientist. As her reputation more than impresses rocket scientist Professor Allenford, Justine is most likely well on her way to becoming yet another of Middleton's resident geniuses.


Justine made multiple breakthroughs in particle physics, most of them apparently in eighth grade. Mr. Barkin assigned Justine to be Kim Possible's science project partner. Excited at the thought of having such a brilliant partner, Kim was eager to help out. Justine, however, made it very clear that she intended to do all of the work alone. A mission to stop a rampaging "dino-thing" created by Dr. Drakken and DNAmy presented Kim with a perfect chance to test out Justine's science project: a kinematic continuum disruptor. Using the Kimmunicator's batteries as a power source, the disruptor opened a wormhole that dragged the creature inside, effectively saving Middleton. Unfortunately, Mr. Barkin did not believe the machine could do what Justine claimed it could, and activated it in the middle of the school, unleashing the dinosaur once again.



Justine initially assumes that Kim will be of no help to her, and wants nothing to do with her. Kim takes this as an insult, and manages to impress Justine through her sheer determination to be of help.


Justine's typical outfit contains various shades of blue: dark blue headband, light blue blouse with white trim, light & dark blue checkered skirt, white knee socks, and black shoes.


  • Homemade kinematic continuum disruptor


Kim: So, Justine, tell me more about your project idea. Justine: Uh, yeah. It's highly technical. Kim: Try me. I'm here to help. Justine: Here's your to-do list. Kim: It's blank. Justine: Exactly. During the project, disappear and don't bother me. The day of the presentation, show up and smile.


  • In addition to holding both a Bachelors and PH.D in neuroscience in real life, Justine's voice actor also stars onThe Big Bang Theory as Sheldon Cooper's girl friend, Doctor Amy Farrah Fowler, a neurobiologist whose test subjects are mainly monkeys.

Behind the Scenes

Voice Actor/Actress

Justine Flanner is voiced by Mayim Bialik[2][3].

Episode Appearances



v - e - d
Kim Poss
Kim PossibleKim Possible: What's the Switch?Kim Possible: KimmunicatorKim Possible: Revenge of Monkey FistKim Possible 2: Drakken's DemiseKim Possible 3: Team PossibleKim Possible: Global GeminiLilo and Stitch: The SeriesPhineas and FerbKim Possible World Showcase AdventureLive-action film
Bueno NachoShowdown at Camp WannaweepThe New RonDownhillKilligan's IslandMonkey BuisnessAttack of the Killer BebesRoyal PainTweeb TroubleExtremeGrudge MatchClonedCode Word: KimThe Kim Possible FilesSave the World KitPick a Villain!: Badical BattlesPick a Villain!: Game On!Pick a Villain!: Masters of MayhemPick a Villain!: So Not the Drama!
Heroes: Kim PossibleRon StoppableRufusWadeDr. Ann PossibleDr. James PossibleJim and Tim PossibleMr. StoppableMrs. StoppableHana StoppableMoniqueSteve BarkinBonnie RockwallerNedNana PossibleTeam GoMartin SmartyArtie SmartyTeam ImpossibleBetty DirectorCousin LarryVivian Francis PorterFelix RentonZita FloresMaster SenseiYoriSlim PossibleJoss PossibleYonoMegoHegoWego TwinsSteel ToePain KingProfessor AcariConnie RockwallerLonnie RockwallerMrs. RockwallerTaraJessicaHopeMarcellaLizCrystalFranklin BarkinWayneShaunReuben StoppableVinnieBig MikeMr. McHenryJuniorPrince WallyWanda WongToshimiruAlan PlattAkuteOfficer HobbleAmeliaPop Pop PorterKyoko YoshikoNakasumi-SanTimothy NorthSADIMiddleton High School CheerleadersWill DuCyrus BortelOh BoyzRoachie

Villians: Dr. DrakkenShegoMonkey FistDuff KilliganSeñor Senior, SeniorSeñor Senior, JuniorAmy HallGil MossCamille LeonFrugal LucreBebeAdrena LynnGeminiProfessor DementorFashionistasWarmongaWarhokEdward LipskyFalsetto JonesNanny MaimHank PerkinsStone GorillaJackie the JackalAviariusFukushimaKnights of RodeganMalcolm NeviousElectroniqueDr. Fen

Season One: CrushSink or SwimThe New RonTick-Tick-TickDownhillBueno NachoNumber OneMind GamesAttack of the Killer BebesRoyal PainCoach PossiblePain King vs. CleopatraMonkey Fist StrikesOctober 31stAll the NewsKimitation NationThe Twin FactorAnimal AttractionMonkey Ninjas in SpaceRon the ManLow Budget

Season Two: Naked GeniusGrudge MatchTwo to TutorThe Ron FactorCar TroubleRufus in ShowAdventures in Rufus-SittingJob UnfairThe Golden YearsVirtu-RonThe Fearless FerretExchangeRufus vs. Commodore PuddlesDay of the SnowmenA Sitch in TimeA Very Possible ChristmasQueen BebeHidden TalentReturn to Camp WannaweepGo Team GoThe Full MonkeyBlushPartnersOh BoyzSick DayThe Truth HurtsMother's DayMotor EdRon MillionaireTriple SRewriting History
Season Three: Steal WheelsEmotion SicknessBondingBad BoyShowdown at the Crooked DDimension TwistSo the DramaOverdueRoachieRappin' DrakkenTeam ImpossibleGorilla FistAnd the Mole Rat Will Be CGI
Season Four: Ill SuitedThe Big JobTrading FacesThe Cupid EffectCar AlarmMad Dogs and AliensGrande Size MeClothes MindedBig BotherFashion VictimOdds Man InStop Team GoCap'n DrakkenMathter and FerventThe Mentor of Our DiscontentOh No! Yono!Clean SlateHomecoming UpsetChasing RufusNursery CrimesLarry's BirthdayGraduation

SADINeuro-Compliance ChipLotus BladeKimmunicatorSilver CutlassThe AttitudinatorAmulet of the Monkey KingMolecular Muscle EnhancerNacoDiablo SauceGiant Laser DrillPop Pop's Mini Corn DogsPop Pop's BlimpBondo Ball
MiddletonMiddleton High SchoolMiddleton MallBueno NachoSmarty MartPossible HouseStoppable HouseClub BananaMiddleton Space CenterMiddleton Medical CenterCamp WannaweepYamanouchi Ninja SchoolForbidden City MuseumPickle on a PikeMiddleton Institute of Science and TechnologyMiddleton Magnetic InstituteMiddleton Geological CenterMiddleton Motor LodgeUniversity of UppertonCanadaTokyoJapan
Call Me, Beep Me!Could it BeRappin' DrakkenNaked Mole RapSay The WordPop Pop's Mini Corn Dogs (song)It's Just You