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* ''WesternAnimation/{{Rollbots}}''
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* ''WesternAnimation/{{Rollbots}}''''WesternAnimation/RollBots''
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* ''WesternAnimation/ThreeTwoOnePenguins'': Both runs of the show count as this, with the DirectToVideo run consisting of 6 episodes and the Creator/{{qubo}} run consisting of 20 episodes, not counting a ClipShow episode comprised of the songs from the direct-to-video releases.
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* ''WesternAnimation/ThreeTwoOnePenguins'': Both runs of the show count as this, with the DirectToVideo run consisting of 6 episodes and the Creator/{{qubo}} run consisting of 20 episodes, not counting a ClipShow episode comprised of the songs from the direct-to-video releases.releases and the edited versions of the aformentioned direct-to-video episodes.
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* ''WesternAnimation/ThreeTwoOnePenguins'': Both runs of the show count as this, with the DirectToVideo run consisting of 6 episodes and the Creator/{{qubo}} run consisting of 20 episodes, not counting a ClipShow episode comprised of the songs from the direct-to-video releases.
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* ''WesternAnimation/TheLittleMuppetMonsters'' - Only three episodes aired after ''WesternAnimation/MuppetBabies1984''.
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* ''WesternAnimation/TheLittleMuppetMonsters'' - Only three episodes aired Originally picked up as a timeslot companion for ''WesternAnimation/MuppetBabies1984'', Creator/{{CBS}} canceled it after ''WesternAnimation/MuppetBabies1984''.3 episodes, though 13 had been produced.
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* ''WesternAnimation/PlanetSheen'' - 26 episodes across two seasons. We never found out if Sheen got off that planet, though he didn't make much effort to leave to being in with.
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* ''WesternAnimation/PlanetSheen'' - 26 episodes across two seasons. We never found out if Sheen got off that planet, though he didn't make much effort to leave to being in begin with.
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WesternAnimation ShortRunners.
[[index]]
* ''WesternAnimation/The13GhostsOfScoobyDoo'' - 13 episodes, but we never got to learn who the 13th ghost was until a future movie.
* ''WesternAnimation/ThreeAmigonauts''
* ''WesternAnimation/ThreeBelow''
* ''WesternAnimation/OneHundredAndOneDalmatianStreet''
* ''VideoGame/TheAdventuresOfHyperman''
* ''WesternAnimation/TheAdventuresOfKidDanger'' - Unlike the live action series this was based on, this show had only 12 episodes.
* ''WesternAnimation/TheAdventuresOfRockyAndBullwinkle'' - The original show lasted many episodes, but this one? A measly 26.
* ''WesternAnimation/TheAdventuresOfSuperMarioBros3''
* ''WesternAnimation/TheAdventuresOfTeddyRuxpin'' - Ran for one 65-episode season before being ended when Worlds Of Wonder went out of business. Was not helped by the horrible timeslot it kept getting.
* ''WesternAnimation/AgentElvis''
* ''WesternAnimation/AliasTheJester''
* ''WesternAnimation/AllenGregory'' - It ended after its 7th episode. It's often claimed to be due to massive negative reception from viewers and critics alike, but Creator/{{Fox}} had little faith in it to begin with (being a mid-season replacement for ''WesternAnimation/FamilyGuy'')
* ''WesternAnimation/TheAlvinShow''
* ''WesternAnimation/TheAmazingChanAndTheChanClan''
* ''WesternAnimation/AnneOfGreenGablesTheAnimatedSeries'' (lasted 26 episodes from 2001-2002, though it did get a DVD release and had some mild success in reruns)
* ''WesternAnimation/TheAquamanAndFriendsActionHour''
* ''WesternAnimation/ArchiesWeirdMysteries'' - One 40-episode season.
* ''WesternAnimation/AroundTheWorldInEightyDays''
* ''WesternAnimation/AtomicPuppet''
* ''WesternAnimation/AttackOfTheKillerTomatoes''
* ''WesternAnimation/AudreyAndFriends'' - The show lasted for 26 episodes.
* ''WesternAnimation/AvengerPenguins''
* ''WesternAnimation/TheAvengersUnitedTheyStand''
* ''WesternAnimation/BabyBlues'' - this show only got two seasons (13 episodes each for a total of 26 episodes), [[TheShelfOfMovieLanguishment only one of which actually made it to air]].
* ''WesternAnimation/TheBagelAndBeckyShow''
* ''WesternAnimation/BarnyardCommandos''
* ''WesternAnimation/BB3B''
* ''WesternAnimation/BeCoolScoobyDoo'' - Had 52 episodes across two 26-episode seasons before being replaced by ''WesternAnimation/ScoobyDooAndGuessWho''
* ''WesternAnimation/BeautyAndTheBeastBellesMagicalWorld'' - Only aired 3 episodes before being scrapped and cancelled.
* ''WesternAnimation/BenAndHollysLittleKingdom''
* ''WesternAnimation/{{Bertha}}''
* ''WesternAnimation/BewareTheBatman''
* ''WesternAnimation/BigGuyAndRustyTheBoyRobot''
* ''WesternAnimation/TheBigKnights''
* ''WesternAnimation/{{Billy}}''
* ''WesternAnimation/BillyDilleysSuperDuperSubterraneanSummer'' - With only a single 13-episode season that was burned off in 2 weeks during the summer of 2017, it is noted as being one of Creator/DisneyTelevisionAnimation's shortest-lived series.
* ''WesternAnimation/{{Birdz}}'' - According to creator Larry Jacobs, a timeslot after the news did not help this show at all, which only lasted 13 episodes.
* ''WesternAnimation/BlastersUniverse''
* ''WesternAnimation/BlessTheHarts''
* ''WesternAnimation/TheBluffers''
* ''WesternAnimation/BobMorane''
* ''WesternAnimation/BooBoomTheLongWayHome'' - It intentionally ended after just 1 season of 26 episodes.
* ''WesternAnimation/{{Bordertown}}''
* ''WesternAnimation/{{Boyster}}''
* ''WesternAnimation/{{Bravestarr}}''
* ''WesternAnimation/TheBremenAvenueExperience''
* ''WesternAnimation/TheBrothersFlub''
* ''WesternAnimation/TheBrothersGrunt'' - This infamously ugly show lasted only 42 episodes, seven of which never saw airtime.
* ''ComicBook/BuckyOHareAndTheToadWars'' - 13 episodes was all for this show.
* ''WesternAnimation/BuddyThunderstruck'' - While never officially cancelled, Creator/{{Netflix}} [[QuietlyCancelled completely neglected to renew it for a second season]], much to creator Ryan Wiesbrock's chagrin.
* ''WesternAnimation/BunsenIsABeast'' - The last of the works of Creator/ButchHartman. It lasted 26 episodes.
* ''WesternAnimation/BureauOfAlienDetectors''
* ''WesternAnimation/ButchCassidyAndTheSundanceKids''
* ''WesternAnimation/ButtUglyMartians''
* ''WesternAnimation/TheBuzzOnMaggie''
* ''WesternAnimation/CallingCat22''
* ''WesternAnimation/CapitolCritters'' -- Aired only 13 episodes in early 1992 due to the combination of an UncertainAudience and sharing the short-lived TGIF offshoot "I Love Saturday Night" with ''Series/PerfectStrangers'' and aging one-time hits ''Series/WhosTheBoss'' and ''Series/GrowingPains''.
* ''Franchise/CareBears'':
** ''WesternAnimation/CareBearsAdventuresInCareALot'' - Has 24 episodes and two specials across two seasons: 13 episodes for season 1, 11 episodes and two specials for season 2.
** ''WesternAnimation/CareBearsWelcomeToCareALot'' - Has 26 episodes across one season.
*** ''WesternAnimation/CareBearsAndCousins'' - A SequelSeries that had two 6-episode seasons.
* ''WesternAnimation/CarmenGotExpelled'' - Only the pilot episode aired before ''it'' got expelled.
* ''WesternAnimation/CaptainSimianAndTheSpaceMonkeys''
* ''WesternAnimation/CaptainStar''
* ''WesternAnimation/{{Catscratch}}'' - It had only one season stretched across two years.
* ''WesternAnimation/CaveKids'' - Has only eight episodes.
* ''WesternAnimation/CBearAndJamal''
* ''WesternAnimation/{{Centaurworld}}'' - Was designed to only have 2 seasons, making it a roughly 20 episodes series.
* ''WesternAnimation/ChannelUmptee3''
* ''WesternAnimation/TheCharlieBrownAndSnoopyShow'' - Although [[ComicStrip/{{Peanuts}} the comic strip it was based on]] was very successful, the series only lasted two seasons with 18 episodes combined due to low ratings.
* ''WesternAnimation/ChopChopNinja'' - Although [[WesternAnimation/ChopChopNinjaChallenge the shorts it was based on]] were very successful, the series only lasted a single season.
* ''WesternAnimation/ChopSockyChooks''
* ''WesternAnimation/{{Chozen}}''
* ''WesternAnimation/ChuckNorrisKarateKommandos'' -- Only five episodes were made, but more were planned.
* ''WesternAnimation/ChucksChoice'' - It ran for one season of 20 episodes which aired from May through June of 2017. Reruns continued until 2021.
* ''WesternAnimation/CityOfGhosts'' - Lasted a single season with six episodes.
* ''WesternAnimation/ClangInvasion''
* ''WesternAnimation/ClassOf3000'' - Ended after two seasons due to high production costs not justifying continued production.
* ''WesternAnimation/CleopatraInSpace''
* ''WesternAnimation/ClerksTheAnimatedSeries'' - Only six episodes, two of which never aired.
* ''WesternAnimation/ClickAndClacksAsTheWrenchTurns''
* ''WesternAnimation/CloudyWithAChanceOfMeatballs2017''
* ''WesternAnimation/CloneHigh'' - Infamously ended after 13 episodes on one of the biggest ambiguous cliffhangers in cartoon history. Then a revival began airing in 2023.
* ''WesternAnimation/CoconutFredsFruitSaladIsland'' - A poor man's knock off of Spongebob, it lasted 13 episodes over 2 seasons.
* ''WesternAnimation/ComboNinos''
* ''WesternAnimation/{{Committed}}''
* ''WesternAnimation/TheCompletelyMentalMisadventuresOfEdGrimley''
* ''Literature/{{Corduroy}}'' - It only lasted for 26 episodes in a single season.
* ''WesternAnimation/CounterfeitCat''
* ''WesternAnimation/TheCritic'' - Despite positive reviews and respectable ratings, both ABC and Fox (but especially the latter) [[ScrewedByTheNetwork wanted it gone]], and so it lasted 23 episodes across two seasons (plus 10 short webisodes from a failed internet-based revival in the 2000s)
* ''WesternAnimation/CreatureComforts'' - The British version aired for two seasons between 2003 and 2005. The American adaption faired even worse, as it only had seven episodes, three of which actually aired, the rest was put on DVD.
* ''WesternAnimation/{{Creepschool}}''
* ''WesternAnimation/{{Cro}}''
* ''WesternAnimation/CrossingSwords''
* ''WesternAnimation/CupcakeAndDinoGeneralServices'' - Despite receiving critical acclaim and high viewership on Netflix, it only ran for 26 episodes.
* ''WesternAnimation/{{Cybersix}}'' - Only has one season of 13 episodes.
* ''WesternAnimation/DaBoomCrew'' - 13 episodes, but only four were even aired.
* ''WesternAnimation/DadX'' - only one season was ever made.
* ''WesternAnimation/DaftPlanet'' - Cancelled when [[ScrewedByTheNetwork funding ran out thanks to the cuts to the CTW program]].
* ''WebAnimation/{{Damaged}}'' - Lasted 12 episodes. They made up season 1.
* ''WesternAnimation/DangerAndEggs''
* ''WesternAnimation/DangerRangers'' - Lasted for 1 season with 16 episodes, two of which are {{Clip Show}}s.
* ''WesternAnimation/DanVs'' - Lasted 53 episodes; 22 episodes for season 1, 18 for season 2, and 13 for season 3.
* ''WesternAnimation/DaveTheBarbarian''
* ''WesternAnimation/DeadEndParanormalPark'': An almost ''impressively'' short run; two ten-episode seasons airing in June and October of 2022 respectively, before its cancellation in January 2023.
* ''WesternAnimation/DefendersOfTheEarth''
* ''WesternAnimation/{{Detention}}''
* ''WesternAnimation/{{Dilbert}}''
* ''WesternAnimation/DNAce''
* ''WesternAnimation/DoraAndFriendsIntoTheCity'' - 38 episodes across three years. A far cry from the impressive status of the show it spun off of.
* ''WesternAnimation/{{Downtown}}''
* ''WesternAnimation/TheDrinkyCrowShow''
* ''WesternAnimation/DroopyMasterDetective''
* ''WesternAnimation/EarthwormJim'' - Two seasons of 23 episodes total.
* ''WesternAnimation/{{Edebits}}''
* ''WesternAnimation/EndangeredSpecies2015'' - the shortest-lived series of Creator/NerdCorpsEntertainment, with all 26 episodes being burned off by Creator/{{Teletoon}} in only 1 month
* ''WesternAnimation/EvilConCarne'' - Creator Maxwell Atoms willingly ended the show after one season; both this and fellow creation ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'', both spin-offs of ''WesternAnimation/GrimAndEvil'', were popular, but he didn't want the stress of [[{{showrunner}} showrunning]] two cartoons at once. There was a second season, but it only consisted of four episodes. ''Con Carne'' characters were rolled into the ''Billy and Mandy'' universe over time.
* ''WesternAnimation/FamilyDog'' - 13 episodes, only 10 were aired. Probably due to how mean spirited this show is.
* ''WesternAnimation/TheFamilyNess''
* ''WesternAnimation/FanboyAndChumChum''
* ''WesternAnimation/{{Fangbone}}'' - According to creator Michael Rex, the series got good ratings, but executives didn't find them high enough to warrant ordering a second season, ending the show on a cliffhanger.
* ''WesternAnimation/{{Fantomcat}}''
* ''WesternAnimation/FatherOfThePride'' - 13 episodes of this show starring Siegfried and Roy's big cats were aired, but due to the mauling of Roy before the show began, it had no chance. Two more episodes are known to exist, but never aired.
* ''WesternAnimation/FievelsAmericanTails''
* ''WesternAnimation/{{Fillmore}}''
* ''WesternAnimation/FishPolice''- 6 episodes of this dud were aired.
* ''WesternAnimation/FlashGordon1996''
* ''WesternAnimation/FlyingRhinoJuniorHigh''
* ''WesternAnimation/TheFonzAndTheHappyDaysGang''
* ''WesternAnimation/ForkyAsksAQuestion''
* ''WesternAnimation/TheFoxbusters''
* ''WesternAnimation/FraidyCat'' - The show got it worse than other shows on this list - it was slated for an 18-episode run, but due to the immense negative reception it had on ''WesternAnimation/UncleCrocsBlock'', it got canned and taken off of the block after the 12th episode.
* ''WesternAnimation/{{Freakazoid}}'' - Two seasons of 24 episodes total. It gained quite a cult following.
* ''WesternAnimation/FreakShow''
* ''WesternAnimation/{{Freaktown}}'' - After being aired weekly through the summer of 2016, Creator/{{Teletoon}} took the series off the schedule and burned the rest off on a lazy weekend afternoon in October before permanently removing it from their schedule.
* ''WesternAnimation/FredsHead''
* ''WesternAnimation/FreshBeatBandOfSpies''
* ''WesternAnimation/FullEnglish''
* ''WesternAnimation/TheFunkyPhantom''
* ''WesternAnimation/FutureWorm''
* ''WesternAnimation/GalaxyHigh''
* ''WesternAnimation/GaltarAndTheGoldenLance''
* ''WesternAnimation/GaryAndMike''
* ''WesternAnimation/GaryTheRat''
* ''WesternAnimation/{{Gasp}}''
* ''WesternAnimation/GenerationO''
* ''WesternAnimation/GetAce''
* ''WesternAnimation/GetEd''
* ''WesternAnimation/GIJoeExtreme''
* ''WesternAnimation/GIJoeRenegades''
* ''WesternAnimation/GIJoeSigma6''
* ''WesternAnimation/GlitchTechs'' - Only 20 episodes were made before the series was cancelled by Nickelodeon before even premiering. The completed episodes were given to Netflix as part of a deal in 2020.
* ''WesternAnimation/GodTheDevilAndBob''
* ''WesternAnimation/{{Gofrette}}''
* ''WesternAnimation/GoldieAndBear''
* ''WesternAnimation/TheGoodeFamily''
* ''WesternAnimation/GravedaleHigh''
* ''WesternAnimation/GreenLanternTheAnimatedSeries'' - Ended after a single season of 26 episodes due to poor merchandising sales.
* ''WesternAnimation/{{Grojband}}''
* ''WesternAnimation/H2OMermaidAdventures''
* ''WesternAnimation/{{Hammerman}}''
* ''Literature/HaroldAndThePurpleCrayon'' - Has only 13 episodes.
* ''WesternAnimation/TheHarperHouse''
* ''WesternAnimation/HenryHugglemonster''
* ''WesternAnimation/HeyJoel''
* ''WesternAnimation/HighGuardianSpice'': Only twelve episodes of one season due to outrage from fans.
* ''WesternAnimation/HighSchoolUSA''
* ''WesternAnimation/HoopDogz''- Two episodes were released from 2004-2005. Two more episodes were completed (bringing the series to four episodes total), but [[TheShelfOfMovieLanguishment were not released until 2011.]]
* ''WesternAnimation/{{Hoops}}''
* ''WesternAnimation/TheHoundcats''
* ''WesternAnimation/HulkAndTheAgentsOfSMASH''
* ''WesternAnimation/HumanResources2022''
* ''WesternAnimation/IAmNotAnAnimal''
* ''WesternAnimation/IAmWeasel'' - Initially started as the [[ThreeShorts "B"]] segment of ''WesternAnimation/CowAndChicken'' before it received its own spin-off series. Said spin-off only lasted 9 episodes consisting of 27 segments.
* ''WesternAnimation/TheIdhunChronicles''
* ''WesternAnimation/InfinityTrain'' - Lasted for 40 11-minute episodes, spread out over two years.
* ''WesternAnimation/{{Inhumanoids}}''
* ''WesternAnimation/InsideJob2021''
* ''WesternAnimation/InvaderZim'' - Cancelled in the middle of producing its second season due to high budgetary costs, leaving several episodes unfinished. Was massively popular during and after its run, and was continued in comic book form over a decade later, in addition to getting a Creator/{{Netflix}} special in 2019.
* ''WesternAnimation/JayceAndTheWheeledWarriors'' - 65 episodes, but sadly went unresolved.
* ''WesternAnimation/JaneAndTheDragon''
* ''WesternAnimation/JohnCallahansQuads''
* ''WesternAnimation/JonnyQuestTheRealAdventures''
* ''WesternAnimation/JungleCubs ''
* ''WesternAnimation/JusticeLeagueAction''
* ''WesternAnimation/KappaMikey''
* ''WesternAnimation/KidCosmic''
* ''WesternAnimation/KidNotorious''
* ''WesternAnimation/KingStarKing''
* ''WesternAnimation/AKittyBoboShow''
* ''WesternAnimation/KryptoTheSuperdog''
* ''WesternAnimation/KungFuPandaThePawsOfDestiny''
* ''WesternAnimation/TheLandBeforeTime'' - 2007 animated cartoon series based on the movies of the same name. Ran for 2 seasons within a year.
* ''WesternAnimation/LavenderCastle''
* ''WesternAnimation/TheLegendOfCalamityJane'' - Thirteen episodes were produced, but only three aired in the US presumably due to controversy over the series' FamilyUnfriendlyViolence.
* ''WesternAnimation/LegendOfTheThreeCaballeros''
* ''WesternAnimation/TheLegendsOfTreasureIsland''
* ''WesternAnimation/TheLegendOfZelda1989'' - 13 episodes.
* ''WesternAnimation/LegendsOfChamberlainHeights''
* ''WesternAnimation/{{Legion of Super Heroes|2006}}''
* ''WesternAnimation/LilBush''
* ''WesternAnimation/TheLionhearts''
* ''WesternAnimation/LittleBigAwesome''
* ''WesternAnimation/LittleClownsOfHappytown'' - 18 episodes, only 6 of which were released on DVD.
* ''WesternAnimation/LittleDemon''
* ''WesternAnimation/LittleDogsOnThePrairie'' - 3 direct-to-video episodes, all of which were released in 2000.
* ''WesternAnimation/TheLittleMuppetMonsters'' - Only three episodes aired after ''WesternAnimation/MuppetBabies1984''.
* ''WesternAnimation/LittlestPetShopAWorldOfOurOwn''
* ''WesternAnimation/LittleShop''
* ''WesternAnimation/LoonaticsUnleashed''
* ''WesternAnimation/{{Looped}}''
* ''WesternAnimation/LostInOz''
* ''WesternAnimation/LucyTheDaughterOfTheDevil''
* ''WesternAnimation/MackAndMoxy'' - Despite having been seemingly fairly well-received, the series only aired for twelve episodes in 2016 and doesn't seem likely to be coming back. Its official website had gone dead, though has since been [[http://mackandmoxy.com/index.html restored.]]
* ''WesternAnimation/MadJackThePirate''
* ''WesternAnimation/MakingFiends''- 6 episodes with three segments each before Nick decided to screw it over big time.
* ''WesternAnimation/MaoMaoHeroesOfPureHeart'' - Aired for one season of 40 episodes before being seemingly abandoned by Creator/CartoonNetwork in mid-2020.
* ''WesternAnimation/{{Marsupilami}}'' (Disney series) - 13 episodes with three segments each. The producer of the comic this was based on decided to file a lawsuit, which stopped any more episodes.
* ''WesternAnimation/MaryKateAndAshleyInAction''
* ''WesternAnimation/MaryokuYummy''
* ''WesternAnimation/MegaManRubySpears'' - Despite high ratings, it was canceled after the second season largely due to poor toy sales. 27 episodes in all.
* ''WesternAnimation/MegaManFullyCharged'' - A poor time slot and being left to die by Cartoon Network meant 52 episodes was all we got.
* ''WesternAnimation/MegasXLR'' - Another high ratings show and managed to gain two seasons, but cancelled due to a CEO change at Cartoon Network who didn't "get it" (though the showrunners at least kept the ending open-ended).
* ''WesternAnimation/TheMightyB''
* ''WesternAnimation/MightyDucksTheAnimatedSeries'' - 26 episodes were made before it got a game misconduct.
* ''WesternAnimation/MikeLuAndOg''
* ''WesternAnimation/MinaAndTheCount'' - Technically, it was a series of shorts that aired on Creator/CartoonNetwork's ''WesternAnimation/WhatACartoonShow'' and Creator/{{Nickelodeon}}'s ''WesternAnimation/OhYeahCartoons'' rather than its own series proper. Nick however never saw fit to greenlight it despite positive reception.
* ''WesternAnimation/{{Minoriteam}}'' - Due to using every horribly offensive ethnic and racist stereotype in the book, it only lasted 19 episodes (20 if you count the pilot).
* ''WesternAnimation/{{Mirthworms}}''
* ''WesternAnimation/MissionHill''
* ''WesternAnimation/MODOK2021'' - One season of 10 episodes.
* ''WesternAnimation/MonsterForce''
* ''WesternAnimation/MonstersVsAliens2013''
* ''WesternAnimation/MoonbeamCity''
* ''WesternAnimation/{{Motorcity}}'' - One full season. From the same creators of ''Megas'', but again, history repeated, this time due to Disney finding the series a little too hardcore for their liking.
* ''WesternAnimation/MotownMagic''
* ''WesternAnimation/TheMrMenShow''
* ''WesternAnimation/MyDadTheRockStar'' - Despite having good ratings, creator [[Music/{{KISS}} Gene Simmons]] ended the series after 26 episodes to focus more on other projects.
* ''WesternAnimation/MyGoldfishIsEvil''
* ''WesternAnimation/MyLifeMe'' - On top of being given [[ScrewedByTheNetwork no promotion and an abysmal timeslot]], Creator/{{Teletoon}} burned off every episode of the series in a single month before taking it off the air permanently not long afterwards
* ''WesternAnimation/MyLittlePonyTales''
* ''WesternAnimation/MyPetMonster''
* ''WesternAnimation/NachoBear''
* ''WesternAnimation/NapoleonDynamite''
* ''WesternAnimation/NeighborsFromHell'' - Ran adjacent to ''WesternAnimation/FamilyGuy'' on Creator/{{TBS}} for a mere 9 episodes before quietly disappearing.
* ''WesternAnimation/TheNeverendingStoryTheAnimatedAdventuresOfBastianBalthazarBux''
* ''WesternAnimation/TheNewAdventuresOfOceanGirl''
* ''WesternAnimation/TheNewArchies''
* ''WesternAnimation/NightmareNed''
* ''WesternAnimation/NikoAndTheSwordOfLight''
* ''WesternAnimation/OakieDoke''
* ''WesternAnimation/TheOblongs''
* ''WesternAnimation/OlliesPack''
* ''WesternAnimation/OnyxEquinox''
* ''WesternAnimation/OutThere''
* ''WesternAnimation/PackagesFromPlanetX''
* ''WesternAnimation/PacManAndTheGhostlyAdventures''
* ''WesternAnimation/{{Pantheon}}''
* ''WesternAnimation/{{Pelswick}}''
* ''WesternAnimation/PennZeroPartTimeHero''
* ''WesternAnimation/PepperAnn''
* ''WesternAnimation/PerfectHairForever''
* ''WesternAnimation/PetAlien'' - The show got 52 episodes across two seasons, but only ran for two years.
* ''WesternAnimation/PhantomInvestigators'' - Only 13 episodes were made in 2002 due to being screwed over by both Sony and Kids' WB.
* ''WesternAnimation/PickleAndPeanut''
* ''WesternAnimation/PigGoatBananaCricket''
* ''WesternAnimation/PigsNextDoor'' - 13-episode animated sitcom starring the voices of Creator/JohnGoodman and Creator/JamieLeeCurtis. Despite the starpower, the series never aired in the USA until the mid-2010's... on streaming services.
* ''WesternAnimation/PinkyElmyraAndTheBrain'' - It was unceremoniously ended after 13 episodes due both to fan outcry and the producers themselves utterly hating the concept.
* ''WesternAnimation/PinkyMalinky'' - It only ran for three seasons in 2019.
* ''WesternAnimation/PirateExpress'' - Aired the entirety of its single 26-episode season in the span of ''a single week'' before being taken off the air permanently.
* ''WesternAnimation/PiratesAdventuresInArt''
* ''WesternAnimation/PlanetSheen'' - 26 episodes across two seasons. We never found out if Sheen got off that planet, though he didn’t make much effort to leave to being in with.
* ''WesternAnimation/PlanetSketch''
* ''WesternAnimation/{{Plasmo}}''
* ''WesternAnimation/PotsworthAndCompany''
* ''WesternAnimation/PraisePetey''
* ''WesternAnimation/ThePrince2021''
* ''WesternAnimation/PrisonerZero''
* ''WesternAnimation/TheProblemSolverz'' - 26 episodes over two seasons. The last eight were unceremoniously dumped on Netflix.
* ''WesternAnimation/ProjectGeeker''
* ''WesternAnimation/QForce''- Due to using nearly every horribly offensive LGBT stereotype in the book, it only lasted 12 episodes.
* ''WesternAnimation/QuackPack''
* ''WesternAnimation/RandomCartoons''
* ''WesternAnimation/RainbowBrite'' - Only 13 episodes were produced. The reboot lasted even shorter with just 3 episodes.
* ''WesternAnimation/RainbowButterflyUnicornKitty''
* ''WesternAnimation/RatedAForAwesome''
* ''WesternAnimation/RawToonage''
* ''WesternAnimation/RaymanTheAnimatedSeries'' - 26 episodes were planned, but only 4 were completed.
* ''WesternAnimation/ReadyJetGo'' - At least compared to Creator/CraigBartlett's [[WesternAnimation/HeyArnold other]] [[WesternAnimation/DinosaurTrain shows]], both of which had 100 episodes over the course of 8-11 years. ''Ready Jet Go!'' lasted 64 episodes (each with TwoShorts that lasted 11 minutes) over the course of 3 years, making it very nearly a SixtyFiveEpisodeCartoon and the shortest-lived of his works.
* ''WesternAnimation/{{Redakai}}'' - Lasted two seasons before the card game it was based on ended and took it with it.
* ''WesternAnimation/{{Redwall}}'' - stopped after three seasons before the rest of the novels could have been adapted.
* ''WesternAnimation/RenAndStimpyAdultPartyCartoon'' - Aired only three out of six episodes.
* ''WesternAnimation/ReturnToThePlanetOfTheApes''
* ''WesternAnimation/RightNowKapow''
* ''WesternAnimation/RichieRich1996''
* ''WesternAnimation/RickAndSteveTheHappiestGayCoupleInAllTheWorld''
* ''WesternAnimation/RingRaiders'' - Aired 5 episodes total.
* ''WesternAnimation/TheRippingFriends''
* ''WesternAnimation/RiseOfTheTeenageMutantNinjaTurtles''
* ''WesternAnimation/RoadRovers''
* ''WesternAnimation/RobinsonSucroe'' - Aired for 26 episodes before it stopped.
* ''WesternAnimation/{{Robotboy}}''
* ''WesternAnimation/{{Robotomy}}'' - Has the dubious honour of being Creator/CartoonNetwork's shortest-living full series at 10 fifteen-minute shorts.
* ''WesternAnimation/RobotAndMonster''
* ''WesternAnimation/TheRocketeer''
* ''WesternAnimation/{{Rollbots}}''
* ''WesternAnimation/RubyGloom'' - Spanned 40 episodes in 2 seasons.
* ''WesternAnimation/RugratsPreSchoolDaze'' - A failed spin-off of ''WesternAnimation/{{Rugrats}}''. All four episodes were released DirectToVideo in between 2005 and 2006 in the US after airing in other countries, and had premiered on Nick early in the morning in December 2008 and never aired again.
* ''WesternAnimation/SabrinaTheAnimatedSeries'' - Lasted one season and [[SixtyFiveEpisodeCartoon stopped at 65 episodes]].
* ''WesternAnimation/SagwaTheChineseSiameseCat'' - Fell victim to the 40-episode cutoff mandate for early 2000s kids shows.
* ''WesternAnimation/TheAdventuresOfSamAndMaxFreelancePolice''
* ''WesternAnimation/ScoobyDooAndGuessWho''
* ''WesternAnimation/ScoobyDooAndScrappyDoo''
* ''WesternAnimation/TheSecretFilesOfTheSpyDogs''
* ''WesternAnimation/SecretMountainFortAwesome''
* ''WesternAnimation/TheSecretShow''- Ran for 52 episodes over two series.
* ''WesternAnimation/TheSecretWorldOfSantaClaus''
* ''WesternAnimation/{{Sectaurs}}'' - Only a FiveEpisodePilot was produced.
* ''WesternAnimation/ShaggyAndScoobyDooGetAClue''
* ''WesternAnimation/SheepInTheBigCity'' - Ended after 26 episodes (two seasons of 13 episodes each) and a year and some change on air. Almost didn't even get a second season.
* ''WesternAnimation/SheriffCalliesWildWest''
* ''WesternAnimation/{{Sherm}}''
* ''WesternAnimation/SheZow''
* ''WesternAnimation/TheShnookumsAndMeatFunnyCartoonShow''
* ''WesternAnimation/ShortyMcShortsShorts''
* ''WesternAnimation/ShurikenSchool'' - [[AcclaimedFlop Despite being praised by viewers, it had a short run]].
* ''WesternAnimation/TheSilverBrumby''
* ''WesternAnimation/SilverSurferTheAnimatedSeries''
* ''WesternAnimation/{{Silverwing}}'' - Aired 13 episodes before ending before it could adapt the other novels.
* ''WesternAnimation/SimonInTheLandOfChalkDrawings2002'' - Aired in September 2002 on Teletoon.
* ''WesternAnimation/SitDownShutUp''
* ''WesternAnimation/SkunkFu''
* ''WesternAnimation/SlackerCats''
* ''WesternAnimation/SonicTheHedgehogSatAM''
* ''WesternAnimation/SonicUnderground''
* ''WesternAnimation/SoulQuestOverdrive''
* ''WesternAnimation/SpacedOut''
* ''WesternAnimation/TheSpaghettiFamily''
* ''WesternAnimation/TheSpectacularSpiderMan'' - Two full seasons, but one of the few cases where it wasn't cancelled because of low ratings or executive decision (heck, if anything fans loved the show and it was critically acclaimed to boot), but rather rights issues. At the time, Disney had bought up Marvel and began the Marvel Cinematic Universe, taking up the copyrights of superheroes. Spider-Man was still in Sony's hands, however, and they refused to give up the film rights, but agreed to give away the TV rights instead. This unfortunately meant ''Spectacular Spider-Man'' had to be cancelled since, if Disney wanted to continue it, they would have to ''pay'' Sony to keep doing so since the cartoon was made in-house at Sony and technically their property. Naturally, Disney refused on that front much to the dismay of fans. If that wasn't bad enough, the series ended on a major DownerEnding which was meant to lead into the third season.
* ''WesternAnimation/SpicyCity''
* ''WesternAnimation/Spider1991''
* ''WesternAnimation/SpiderManAndHisAmazingFriends''
* ''WesternAnimation/SpiderManTheNewAnimatedSeries''
* ''WesternAnimation/SpiderManUnlimited''
* ''WesternAnimation/SpiderWoman''
* ''WesternAnimation/SpiralZone''
* ''WesternAnimation/SplashAndBubbles'' - Cancelled after one season due to a lack of funding.
* ''WesternAnimation/{{Spliced}}'' - Series co-creator Simon Racioppa stated that the series did well enough that there were considerations for a second season, but circumstances beyond their control led to these plans being axed.
* ''WesternAnimation/SpyGroove''
* ''WesternAnimation/SquirrelBoy''
* ''WesternAnimation/StarTrekTheAnimatedSeries''
* ''WesternAnimation/StarTrekProdigy ''
* ''WesternAnimation/StarWarsResistance''
* ''WesternAnimation/StationZero''
* ''WesternAnimation/{{Stoked}}'' - While Creator/{{Teletoon}} aired both seasons in Canada, Creator/CartoonNetwork cancelled the show after only 22 episodes. This meant that none of the episodes from season 2 aired in the United States, nor the remaining episodes of season 1.
* ''WesternAnimation/StoppitAndTidyup''
* ''WesternAnimation/StrangeHillHigh''
* ''WesternAnimation/StretchArmstrongAndTheFlexFighters''
* ''WesternAnimation/{{Stripperella}}''
* ''WesternAnimation/StrokerAndHoop''
* ''WesternAnimation/SumoMouse''
* ''WesternAnimation/SundayPants'' - Creator/CartoonNetwork unceremoniously cancelled the show for unknown reasons (most likely because it was too inappropriate for children) after a month on the air, leaving six out of its eleven finished episodes unaired.
* ''WesternAnimation/TheSuperMarioBrosSuperShow''
* ''WesternAnimation/SuperMarioWorld''
* ''WesternAnimation/SwampThing'' - The show had 5 episodes which aired sporadically on Fox Kids in the early 90's.
* ''WesternAnimation/SWATKats'' - Despite high ratings, the show was cancelled with 3 episodes left incomplete, so Creator/HannaBarbera could focus on ''WesternAnimation/WhatACartoon''. A revival titled ''SWAT Kats Revolution'' is planned, but was in DevelopmentHell until 2022 when Indian company Toonz Media Group picked it up.
* ''WesternAnimation/SylvanianFamilies''
* ''WesternAnimation/SymBionicTitan'' - One 20-episode season was aired before the plug was pulled due to, of all things, being unable to get a liscencing deal for a toyline.
* ''WesternAnimation/TheTalentedMrBixby''
* ''WesternAnimation/TakAndThePowerOfJuju2007''
* ''WesternAnimation/{{Tarantula}}''
* ''WesternAnimation/TeachersPet'' - The show had 39 episodes for seasons 1 and 2.
* ''WesternAnimation/ThunderCats2011'' - Ended after a single season of 26 episodes due to poor merchandising sales.
* ''WesternAnimation/ThunderCatsRoar'' - The show ended after 1 season of 52 episodes.
* ''WesternAnimation/ElTigreTheAdventuresOfMannyRivera'' - Full season, 26 episodes. Was popular but cancelled as it wasn't gaining the ratings of fellow Nicktoon, ''WesternAnimation/SpongeBobSquarePants''.
* ''WesternAnimation/TimeSquad'' - had 26 episodes over two seasons.
* ''WesternAnimation/TimeWarpTrio'' - Was cancelled after 26 episodes and ended with an improper finale.
* ''WesternAnimation/TimothyGoesToSchool'' - Only 26 episodes were made between 2000 and 2001.
* ''WesternAnimation/TitanMaximum''
* ''WesternAnimation/ToadPatrol'' - Ended after 26 episodes over two seasons, a third season was planned but was cancelled.
* ''WesternAnimation/TheTofus''
* ''WesternAnimation/TomAndJerryTales''
* ''WesternAnimation/ToonMarty''
* ''WesternAnimation/{{Toonsylvania}}''
* ''WesternAnimation/TootAndPuddle''
* ''WesternAnimation/TopCat''
* ''WesternAnimation/ToxicCrusaders''
* ''WesternAnimation/{{Trollz}}''
* ''WesternAnimation/TronUprising''
* ''WesternAnimation/TucaAndBertie'' - Initially ran for 1 season of 10 episodes on Creator/{{Netflix}}, then was rescued by Creator/AdultSwim and had 2 more seasons of 10 before being canned again, bringing the episode total to 30.
* ''WesternAnimation/{{Tugs}}''
* ''WesternAnimation/{{Tupu}}''
* ''WesternAnimation/TurtleIsland'' - 26 episodes produced and originally aired in 1995.
* ''WesternAnimation/TwelveForever''
* ''WesternAnimation/UglyAmericans''
* ''WesternAnimation/UltimateBookOfSpells''
* ''WesternAnimation/{{Undergrads}}''
* ''WesternAnimation/UrbanVermin''
* ''WesternAnimation/VictorAndHugo''
* ''WesternAnimation/{{Visionaries}}''
* ''WesternAnimation/VoltronForce''
* ''WesternAnimation/VoltronTheThirdDimension''
* ''WesternAnimation/VytorTheStarfireChampion''
* ''WesternAnimation/WatchMyChops''
* ''WesternAnimation/{{Waynehead}}''
* ''WesternAnimation/{{Wayside}}''
* ''WesternAnimation/WeirdYears''
* ''WesternAnimation/WelcomeToTheWayne''
* ''WesternAnimation/WhateverHappenedToRobotJones'' - The question should be whatever happened to ''this'' show of just 13 episodes.
* ''WesternAnimation/WhatItsLikeBeingAlone''
* ''WesternAnimation/WheresHuddles''
* ''WesternAnimation/WheresWaldo2019'' was planned to have only 40 stories produced.
* ''WesternAnimation/WildCATs1994''
* ''WesternAnimation/WillAndDeWitt''
* ''WesternAnimation/{{Wishfart}}''
* ''WesternAnimation/WishKid'' - 13 episodes. The series ended on the same year as its premiere, making it one of the quickest cartoons of the 1990s.
* ''WesternAnimation/TheWizardOfOz''
* ''WesternAnimation/WorldOfWinx''
* ''WesternAnimation/TheWuzzles''
* ''WesternAnimation/TheXs'' - 19 episodes were aired, and a 20th wasn’t.
* ''WesternAnimation/XiaolinChronicles''
* ''WesternAnimation/Xyber9NewDawn''
* ''WesternAnimation/YabbaDabbaDinosaurs''
* ''WesternAnimation/YakkityYak''
* ''WesternAnimation/YinYangYo''
* ''WesternAnimation/YoohooAndFriends'' lasted only under a year for 26 episodes (52 segments), and was intended by the studio to get a second season but couldn't. The [[Animation/YooHooAndFriends show it was dubbed after]], however, [[LongRunners was not a short runner]].
* ''WesternAnimation/ZekesPad''
* ''WesternAnimation/{{Zeroman}}'' had plans for a second season, but they were cancelled after Zeroman's voice actor, Creator/LeslieNielsen, passed away.
* ''WesternAnimation/Zevo3''
* ''WesternAnimation/TheZhuZhus''
[[/index]]
[[index]]
* ''WesternAnimation/The13GhostsOfScoobyDoo'' - 13 episodes, but we never got to learn who the 13th ghost was until a future movie.
* ''WesternAnimation/ThreeAmigonauts''
* ''WesternAnimation/ThreeBelow''
* ''WesternAnimation/OneHundredAndOneDalmatianStreet''
* ''VideoGame/TheAdventuresOfHyperman''
* ''WesternAnimation/TheAdventuresOfKidDanger'' - Unlike the live action series this was based on, this show had only 12 episodes.
* ''WesternAnimation/TheAdventuresOfRockyAndBullwinkle'' - The original show lasted many episodes, but this one? A measly 26.
* ''WesternAnimation/TheAdventuresOfSuperMarioBros3''
* ''WesternAnimation/TheAdventuresOfTeddyRuxpin'' - Ran for one 65-episode season before being ended when Worlds Of Wonder went out of business. Was not helped by the horrible timeslot it kept getting.
* ''WesternAnimation/AgentElvis''
* ''WesternAnimation/AliasTheJester''
* ''WesternAnimation/AllenGregory'' - It ended after its 7th episode. It's often claimed to be due to massive negative reception from viewers and critics alike, but Creator/{{Fox}} had little faith in it to begin with (being a mid-season replacement for ''WesternAnimation/FamilyGuy'')
* ''WesternAnimation/TheAlvinShow''
* ''WesternAnimation/TheAmazingChanAndTheChanClan''
* ''WesternAnimation/AnneOfGreenGablesTheAnimatedSeries'' (lasted 26 episodes from 2001-2002, though it did get a DVD release and had some mild success in reruns)
* ''WesternAnimation/TheAquamanAndFriendsActionHour''
* ''WesternAnimation/ArchiesWeirdMysteries'' - One 40-episode season.
* ''WesternAnimation/AroundTheWorldInEightyDays''
* ''WesternAnimation/AtomicPuppet''
* ''WesternAnimation/AttackOfTheKillerTomatoes''
* ''WesternAnimation/AudreyAndFriends'' - The show lasted for 26 episodes.
* ''WesternAnimation/AvengerPenguins''
* ''WesternAnimation/TheAvengersUnitedTheyStand''
* ''WesternAnimation/BabyBlues'' - this show only got two seasons (13 episodes each for a total of 26 episodes), [[TheShelfOfMovieLanguishment only one of which actually made it to air]].
* ''WesternAnimation/TheBagelAndBeckyShow''
* ''WesternAnimation/BarnyardCommandos''
* ''WesternAnimation/BB3B''
* ''WesternAnimation/BeCoolScoobyDoo'' - Had 52 episodes across two 26-episode seasons before being replaced by ''WesternAnimation/ScoobyDooAndGuessWho''
* ''WesternAnimation/BeautyAndTheBeastBellesMagicalWorld'' - Only aired 3 episodes before being scrapped and cancelled.
* ''WesternAnimation/BenAndHollysLittleKingdom''
* ''WesternAnimation/{{Bertha}}''
* ''WesternAnimation/BewareTheBatman''
* ''WesternAnimation/BigGuyAndRustyTheBoyRobot''
* ''WesternAnimation/TheBigKnights''
* ''WesternAnimation/{{Billy}}''
* ''WesternAnimation/BillyDilleysSuperDuperSubterraneanSummer'' - With only a single 13-episode season that was burned off in 2 weeks during the summer of 2017, it is noted as being one of Creator/DisneyTelevisionAnimation's shortest-lived series.
* ''WesternAnimation/{{Birdz}}'' - According to creator Larry Jacobs, a timeslot after the news did not help this show at all, which only lasted 13 episodes.
* ''WesternAnimation/BlastersUniverse''
* ''WesternAnimation/BlessTheHarts''
* ''WesternAnimation/TheBluffers''
* ''WesternAnimation/BobMorane''
* ''WesternAnimation/BooBoomTheLongWayHome'' - It intentionally ended after just 1 season of 26 episodes.
* ''WesternAnimation/{{Bordertown}}''
* ''WesternAnimation/{{Boyster}}''
* ''WesternAnimation/{{Bravestarr}}''
* ''WesternAnimation/TheBremenAvenueExperience''
* ''WesternAnimation/TheBrothersFlub''
* ''WesternAnimation/TheBrothersGrunt'' - This infamously ugly show lasted only 42 episodes, seven of which never saw airtime.
* ''ComicBook/BuckyOHareAndTheToadWars'' - 13 episodes was all for this show.
* ''WesternAnimation/BuddyThunderstruck'' - While never officially cancelled, Creator/{{Netflix}} [[QuietlyCancelled completely neglected to renew it for a second season]], much to creator Ryan Wiesbrock's chagrin.
* ''WesternAnimation/BunsenIsABeast'' - The last of the works of Creator/ButchHartman. It lasted 26 episodes.
* ''WesternAnimation/BureauOfAlienDetectors''
* ''WesternAnimation/ButchCassidyAndTheSundanceKids''
* ''WesternAnimation/ButtUglyMartians''
* ''WesternAnimation/TheBuzzOnMaggie''
* ''WesternAnimation/CallingCat22''
* ''WesternAnimation/CapitolCritters'' -- Aired only 13 episodes in early 1992 due to the combination of an UncertainAudience and sharing the short-lived TGIF offshoot "I Love Saturday Night" with ''Series/PerfectStrangers'' and aging one-time hits ''Series/WhosTheBoss'' and ''Series/GrowingPains''.
* ''Franchise/CareBears'':
** ''WesternAnimation/CareBearsAdventuresInCareALot'' - Has 24 episodes and two specials across two seasons: 13 episodes for season 1, 11 episodes and two specials for season 2.
** ''WesternAnimation/CareBearsWelcomeToCareALot'' - Has 26 episodes across one season.
*** ''WesternAnimation/CareBearsAndCousins'' - A SequelSeries that had two 6-episode seasons.
* ''WesternAnimation/CarmenGotExpelled'' - Only the pilot episode aired before ''it'' got expelled.
* ''WesternAnimation/CaptainSimianAndTheSpaceMonkeys''
* ''WesternAnimation/CaptainStar''
* ''WesternAnimation/{{Catscratch}}'' - It had only one season stretched across two years.
* ''WesternAnimation/CaveKids'' - Has only eight episodes.
* ''WesternAnimation/CBearAndJamal''
* ''WesternAnimation/{{Centaurworld}}'' - Was designed to only have 2 seasons, making it a roughly 20 episodes series.
* ''WesternAnimation/ChannelUmptee3''
* ''WesternAnimation/TheCharlieBrownAndSnoopyShow'' - Although [[ComicStrip/{{Peanuts}} the comic strip it was based on]] was very successful, the series only lasted two seasons with 18 episodes combined due to low ratings.
* ''WesternAnimation/ChopChopNinja'' - Although [[WesternAnimation/ChopChopNinjaChallenge the shorts it was based on]] were very successful, the series only lasted a single season.
* ''WesternAnimation/ChopSockyChooks''
* ''WesternAnimation/{{Chozen}}''
* ''WesternAnimation/ChuckNorrisKarateKommandos'' -- Only five episodes were made, but more were planned.
* ''WesternAnimation/ChucksChoice'' - It ran for one season of 20 episodes which aired from May through June of 2017. Reruns continued until 2021.
* ''WesternAnimation/CityOfGhosts'' - Lasted a single season with six episodes.
* ''WesternAnimation/ClangInvasion''
* ''WesternAnimation/ClassOf3000'' - Ended after two seasons due to high production costs not justifying continued production.
* ''WesternAnimation/CleopatraInSpace''
* ''WesternAnimation/ClerksTheAnimatedSeries'' - Only six episodes, two of which never aired.
* ''WesternAnimation/ClickAndClacksAsTheWrenchTurns''
* ''WesternAnimation/CloudyWithAChanceOfMeatballs2017''
* ''WesternAnimation/CloneHigh'' - Infamously ended after 13 episodes on one of the biggest ambiguous cliffhangers in cartoon history. Then a revival began airing in 2023.
* ''WesternAnimation/CoconutFredsFruitSaladIsland'' - A poor man's knock off of Spongebob, it lasted 13 episodes over 2 seasons.
* ''WesternAnimation/ComboNinos''
* ''WesternAnimation/{{Committed}}''
* ''WesternAnimation/TheCompletelyMentalMisadventuresOfEdGrimley''
* ''Literature/{{Corduroy}}'' - It only lasted for 26 episodes in a single season.
* ''WesternAnimation/CounterfeitCat''
* ''WesternAnimation/TheCritic'' - Despite positive reviews and respectable ratings, both ABC and Fox (but especially the latter) [[ScrewedByTheNetwork wanted it gone]], and so it lasted 23 episodes across two seasons (plus 10 short webisodes from a failed internet-based revival in the 2000s)
* ''WesternAnimation/CreatureComforts'' - The British version aired for two seasons between 2003 and 2005. The American adaption faired even worse, as it only had seven episodes, three of which actually aired, the rest was put on DVD.
* ''WesternAnimation/{{Creepschool}}''
* ''WesternAnimation/{{Cro}}''
* ''WesternAnimation/CrossingSwords''
* ''WesternAnimation/CupcakeAndDinoGeneralServices'' - Despite receiving critical acclaim and high viewership on Netflix, it only ran for 26 episodes.
* ''WesternAnimation/{{Cybersix}}'' - Only has one season of 13 episodes.
* ''WesternAnimation/DaBoomCrew'' - 13 episodes, but only four were even aired.
* ''WesternAnimation/DadX'' - only one season was ever made.
* ''WesternAnimation/DaftPlanet'' - Cancelled when [[ScrewedByTheNetwork funding ran out thanks to the cuts to the CTW program]].
* ''WebAnimation/{{Damaged}}'' - Lasted 12 episodes. They made up season 1.
* ''WesternAnimation/DangerAndEggs''
* ''WesternAnimation/DangerRangers'' - Lasted for 1 season with 16 episodes, two of which are {{Clip Show}}s.
* ''WesternAnimation/DanVs'' - Lasted 53 episodes; 22 episodes for season 1, 18 for season 2, and 13 for season 3.
* ''WesternAnimation/DaveTheBarbarian''
* ''WesternAnimation/DeadEndParanormalPark'': An almost ''impressively'' short run; two ten-episode seasons airing in June and October of 2022 respectively, before its cancellation in January 2023.
* ''WesternAnimation/DefendersOfTheEarth''
* ''WesternAnimation/{{Detention}}''
* ''WesternAnimation/{{Dilbert}}''
* ''WesternAnimation/DNAce''
* ''WesternAnimation/DoraAndFriendsIntoTheCity'' - 38 episodes across three years. A far cry from the impressive status of the show it spun off of.
* ''WesternAnimation/{{Downtown}}''
* ''WesternAnimation/TheDrinkyCrowShow''
* ''WesternAnimation/DroopyMasterDetective''
* ''WesternAnimation/EarthwormJim'' - Two seasons of 23 episodes total.
* ''WesternAnimation/{{Edebits}}''
* ''WesternAnimation/EndangeredSpecies2015'' - the shortest-lived series of Creator/NerdCorpsEntertainment, with all 26 episodes being burned off by Creator/{{Teletoon}} in only 1 month
* ''WesternAnimation/EvilConCarne'' - Creator Maxwell Atoms willingly ended the show after one season; both this and fellow creation ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'', both spin-offs of ''WesternAnimation/GrimAndEvil'', were popular, but he didn't want the stress of [[{{showrunner}} showrunning]] two cartoons at once. There was a second season, but it only consisted of four episodes. ''Con Carne'' characters were rolled into the ''Billy and Mandy'' universe over time.
* ''WesternAnimation/FamilyDog'' - 13 episodes, only 10 were aired. Probably due to how mean spirited this show is.
* ''WesternAnimation/TheFamilyNess''
* ''WesternAnimation/FanboyAndChumChum''
* ''WesternAnimation/{{Fangbone}}'' - According to creator Michael Rex, the series got good ratings, but executives didn't find them high enough to warrant ordering a second season, ending the show on a cliffhanger.
* ''WesternAnimation/{{Fantomcat}}''
* ''WesternAnimation/FatherOfThePride'' - 13 episodes of this show starring Siegfried and Roy's big cats were aired, but due to the mauling of Roy before the show began, it had no chance. Two more episodes are known to exist, but never aired.
* ''WesternAnimation/FievelsAmericanTails''
* ''WesternAnimation/{{Fillmore}}''
* ''WesternAnimation/FishPolice''- 6 episodes of this dud were aired.
* ''WesternAnimation/FlashGordon1996''
* ''WesternAnimation/FlyingRhinoJuniorHigh''
* ''WesternAnimation/TheFonzAndTheHappyDaysGang''
* ''WesternAnimation/ForkyAsksAQuestion''
* ''WesternAnimation/TheFoxbusters''
* ''WesternAnimation/FraidyCat'' - The show got it worse than other shows on this list - it was slated for an 18-episode run, but due to the immense negative reception it had on ''WesternAnimation/UncleCrocsBlock'', it got canned and taken off of the block after the 12th episode.
* ''WesternAnimation/{{Freakazoid}}'' - Two seasons of 24 episodes total. It gained quite a cult following.
* ''WesternAnimation/FreakShow''
* ''WesternAnimation/{{Freaktown}}'' - After being aired weekly through the summer of 2016, Creator/{{Teletoon}} took the series off the schedule and burned the rest off on a lazy weekend afternoon in October before permanently removing it from their schedule.
* ''WesternAnimation/FredsHead''
* ''WesternAnimation/FreshBeatBandOfSpies''
* ''WesternAnimation/FullEnglish''
* ''WesternAnimation/TheFunkyPhantom''
* ''WesternAnimation/FutureWorm''
* ''WesternAnimation/GalaxyHigh''
* ''WesternAnimation/GaltarAndTheGoldenLance''
* ''WesternAnimation/GaryAndMike''
* ''WesternAnimation/GaryTheRat''
* ''WesternAnimation/{{Gasp}}''
* ''WesternAnimation/GenerationO''
* ''WesternAnimation/GetAce''
* ''WesternAnimation/GetEd''
* ''WesternAnimation/GIJoeExtreme''
* ''WesternAnimation/GIJoeRenegades''
* ''WesternAnimation/GIJoeSigma6''
* ''WesternAnimation/GlitchTechs'' - Only 20 episodes were made before the series was cancelled by Nickelodeon before even premiering. The completed episodes were given to Netflix as part of a deal in 2020.
* ''WesternAnimation/GodTheDevilAndBob''
* ''WesternAnimation/{{Gofrette}}''
* ''WesternAnimation/GoldieAndBear''
* ''WesternAnimation/TheGoodeFamily''
* ''WesternAnimation/GravedaleHigh''
* ''WesternAnimation/GreenLanternTheAnimatedSeries'' - Ended after a single season of 26 episodes due to poor merchandising sales.
* ''WesternAnimation/{{Grojband}}''
* ''WesternAnimation/H2OMermaidAdventures''
* ''WesternAnimation/{{Hammerman}}''
* ''Literature/HaroldAndThePurpleCrayon'' - Has only 13 episodes.
* ''WesternAnimation/TheHarperHouse''
* ''WesternAnimation/HenryHugglemonster''
* ''WesternAnimation/HeyJoel''
* ''WesternAnimation/HighGuardianSpice'': Only twelve episodes of one season due to outrage from fans.
* ''WesternAnimation/HighSchoolUSA''
* ''WesternAnimation/HoopDogz''- Two episodes were released from 2004-2005. Two more episodes were completed (bringing the series to four episodes total), but [[TheShelfOfMovieLanguishment were not released until 2011.]]
* ''WesternAnimation/{{Hoops}}''
* ''WesternAnimation/TheHoundcats''
* ''WesternAnimation/HulkAndTheAgentsOfSMASH''
* ''WesternAnimation/HumanResources2022''
* ''WesternAnimation/IAmNotAnAnimal''
* ''WesternAnimation/IAmWeasel'' - Initially started as the [[ThreeShorts "B"]] segment of ''WesternAnimation/CowAndChicken'' before it received its own spin-off series. Said spin-off only lasted 9 episodes consisting of 27 segments.
* ''WesternAnimation/TheIdhunChronicles''
* ''WesternAnimation/InfinityTrain'' - Lasted for 40 11-minute episodes, spread out over two years.
* ''WesternAnimation/{{Inhumanoids}}''
* ''WesternAnimation/InsideJob2021''
* ''WesternAnimation/InvaderZim'' - Cancelled in the middle of producing its second season due to high budgetary costs, leaving several episodes unfinished. Was massively popular during and after its run, and was continued in comic book form over a decade later, in addition to getting a Creator/{{Netflix}} special in 2019.
* ''WesternAnimation/JayceAndTheWheeledWarriors'' - 65 episodes, but sadly went unresolved.
* ''WesternAnimation/JaneAndTheDragon''
* ''WesternAnimation/JohnCallahansQuads''
* ''WesternAnimation/JonnyQuestTheRealAdventures''
* ''WesternAnimation/JungleCubs ''
* ''WesternAnimation/JusticeLeagueAction''
* ''WesternAnimation/KappaMikey''
* ''WesternAnimation/KidCosmic''
* ''WesternAnimation/KidNotorious''
* ''WesternAnimation/KingStarKing''
* ''WesternAnimation/AKittyBoboShow''
* ''WesternAnimation/KryptoTheSuperdog''
* ''WesternAnimation/KungFuPandaThePawsOfDestiny''
* ''WesternAnimation/TheLandBeforeTime'' - 2007 animated cartoon series based on the movies of the same name. Ran for 2 seasons within a year.
* ''WesternAnimation/LavenderCastle''
* ''WesternAnimation/TheLegendOfCalamityJane'' - Thirteen episodes were produced, but only three aired in the US presumably due to controversy over the series' FamilyUnfriendlyViolence.
* ''WesternAnimation/LegendOfTheThreeCaballeros''
* ''WesternAnimation/TheLegendsOfTreasureIsland''
* ''WesternAnimation/TheLegendOfZelda1989'' - 13 episodes.
* ''WesternAnimation/LegendsOfChamberlainHeights''
* ''WesternAnimation/{{Legion of Super Heroes|2006}}''
* ''WesternAnimation/LilBush''
* ''WesternAnimation/TheLionhearts''
* ''WesternAnimation/LittleBigAwesome''
* ''WesternAnimation/LittleClownsOfHappytown'' - 18 episodes, only 6 of which were released on DVD.
* ''WesternAnimation/LittleDemon''
* ''WesternAnimation/LittleDogsOnThePrairie'' - 3 direct-to-video episodes, all of which were released in 2000.
* ''WesternAnimation/TheLittleMuppetMonsters'' - Only three episodes aired after ''WesternAnimation/MuppetBabies1984''.
* ''WesternAnimation/LittlestPetShopAWorldOfOurOwn''
* ''WesternAnimation/LittleShop''
* ''WesternAnimation/LoonaticsUnleashed''
* ''WesternAnimation/{{Looped}}''
* ''WesternAnimation/LostInOz''
* ''WesternAnimation/LucyTheDaughterOfTheDevil''
* ''WesternAnimation/MackAndMoxy'' - Despite having been seemingly fairly well-received, the series only aired for twelve episodes in 2016 and doesn't seem likely to be coming back. Its official website had gone dead, though has since been [[http://mackandmoxy.com/index.html restored.]]
* ''WesternAnimation/MadJackThePirate''
* ''WesternAnimation/MakingFiends''- 6 episodes with three segments each before Nick decided to screw it over big time.
* ''WesternAnimation/MaoMaoHeroesOfPureHeart'' - Aired for one season of 40 episodes before being seemingly abandoned by Creator/CartoonNetwork in mid-2020.
* ''WesternAnimation/{{Marsupilami}}'' (Disney series) - 13 episodes with three segments each. The producer of the comic this was based on decided to file a lawsuit, which stopped any more episodes.
* ''WesternAnimation/MaryKateAndAshleyInAction''
* ''WesternAnimation/MaryokuYummy''
* ''WesternAnimation/MegaManRubySpears'' - Despite high ratings, it was canceled after the second season largely due to poor toy sales. 27 episodes in all.
* ''WesternAnimation/MegaManFullyCharged'' - A poor time slot and being left to die by Cartoon Network meant 52 episodes was all we got.
* ''WesternAnimation/MegasXLR'' - Another high ratings show and managed to gain two seasons, but cancelled due to a CEO change at Cartoon Network who didn't "get it" (though the showrunners at least kept the ending open-ended).
* ''WesternAnimation/TheMightyB''
* ''WesternAnimation/MightyDucksTheAnimatedSeries'' - 26 episodes were made before it got a game misconduct.
* ''WesternAnimation/MikeLuAndOg''
* ''WesternAnimation/MinaAndTheCount'' - Technically, it was a series of shorts that aired on Creator/CartoonNetwork's ''WesternAnimation/WhatACartoonShow'' and Creator/{{Nickelodeon}}'s ''WesternAnimation/OhYeahCartoons'' rather than its own series proper. Nick however never saw fit to greenlight it despite positive reception.
* ''WesternAnimation/{{Minoriteam}}'' - Due to using every horribly offensive ethnic and racist stereotype in the book, it only lasted 19 episodes (20 if you count the pilot).
* ''WesternAnimation/{{Mirthworms}}''
* ''WesternAnimation/MissionHill''
* ''WesternAnimation/MODOK2021'' - One season of 10 episodes.
* ''WesternAnimation/MonsterForce''
* ''WesternAnimation/MonstersVsAliens2013''
* ''WesternAnimation/MoonbeamCity''
* ''WesternAnimation/{{Motorcity}}'' - One full season. From the same creators of ''Megas'', but again, history repeated, this time due to Disney finding the series a little too hardcore for their liking.
* ''WesternAnimation/MotownMagic''
* ''WesternAnimation/TheMrMenShow''
* ''WesternAnimation/MyDadTheRockStar'' - Despite having good ratings, creator [[Music/{{KISS}} Gene Simmons]] ended the series after 26 episodes to focus more on other projects.
* ''WesternAnimation/MyGoldfishIsEvil''
* ''WesternAnimation/MyLifeMe'' - On top of being given [[ScrewedByTheNetwork no promotion and an abysmal timeslot]], Creator/{{Teletoon}} burned off every episode of the series in a single month before taking it off the air permanently not long afterwards
* ''WesternAnimation/MyLittlePonyTales''
* ''WesternAnimation/MyPetMonster''
* ''WesternAnimation/NachoBear''
* ''WesternAnimation/NapoleonDynamite''
* ''WesternAnimation/NeighborsFromHell'' - Ran adjacent to ''WesternAnimation/FamilyGuy'' on Creator/{{TBS}} for a mere 9 episodes before quietly disappearing.
* ''WesternAnimation/TheNeverendingStoryTheAnimatedAdventuresOfBastianBalthazarBux''
* ''WesternAnimation/TheNewAdventuresOfOceanGirl''
* ''WesternAnimation/TheNewArchies''
* ''WesternAnimation/NightmareNed''
* ''WesternAnimation/NikoAndTheSwordOfLight''
* ''WesternAnimation/OakieDoke''
* ''WesternAnimation/TheOblongs''
* ''WesternAnimation/OlliesPack''
* ''WesternAnimation/OnyxEquinox''
* ''WesternAnimation/OutThere''
* ''WesternAnimation/PackagesFromPlanetX''
* ''WesternAnimation/PacManAndTheGhostlyAdventures''
* ''WesternAnimation/{{Pantheon}}''
* ''WesternAnimation/{{Pelswick}}''
* ''WesternAnimation/PennZeroPartTimeHero''
* ''WesternAnimation/PepperAnn''
* ''WesternAnimation/PerfectHairForever''
* ''WesternAnimation/PetAlien'' - The show got 52 episodes across two seasons, but only ran for two years.
* ''WesternAnimation/PhantomInvestigators'' - Only 13 episodes were made in 2002 due to being screwed over by both Sony and Kids' WB.
* ''WesternAnimation/PickleAndPeanut''
* ''WesternAnimation/PigGoatBananaCricket''
* ''WesternAnimation/PigsNextDoor'' - 13-episode animated sitcom starring the voices of Creator/JohnGoodman and Creator/JamieLeeCurtis. Despite the starpower, the series never aired in the USA until the mid-2010's... on streaming services.
* ''WesternAnimation/PinkyElmyraAndTheBrain'' - It was unceremoniously ended after 13 episodes due both to fan outcry and the producers themselves utterly hating the concept.
* ''WesternAnimation/PinkyMalinky'' - It only ran for three seasons in 2019.
* ''WesternAnimation/PirateExpress'' - Aired the entirety of its single 26-episode season in the span of ''a single week'' before being taken off the air permanently.
* ''WesternAnimation/PiratesAdventuresInArt''
* ''WesternAnimation/PlanetSheen'' - 26 episodes across two seasons. We never found out if Sheen got off that planet, though he didn’t make much effort to leave to being in with.
* ''WesternAnimation/PlanetSketch''
* ''WesternAnimation/{{Plasmo}}''
* ''WesternAnimation/PotsworthAndCompany''
* ''WesternAnimation/PraisePetey''
* ''WesternAnimation/ThePrince2021''
* ''WesternAnimation/PrisonerZero''
* ''WesternAnimation/TheProblemSolverz'' - 26 episodes over two seasons. The last eight were unceremoniously dumped on Netflix.
* ''WesternAnimation/ProjectGeeker''
* ''WesternAnimation/QForce''- Due to using nearly every horribly offensive LGBT stereotype in the book, it only lasted 12 episodes.
* ''WesternAnimation/QuackPack''
* ''WesternAnimation/RandomCartoons''
* ''WesternAnimation/RainbowBrite'' - Only 13 episodes were produced. The reboot lasted even shorter with just 3 episodes.
* ''WesternAnimation/RainbowButterflyUnicornKitty''
* ''WesternAnimation/RatedAForAwesome''
* ''WesternAnimation/RawToonage''
* ''WesternAnimation/RaymanTheAnimatedSeries'' - 26 episodes were planned, but only 4 were completed.
* ''WesternAnimation/ReadyJetGo'' - At least compared to Creator/CraigBartlett's [[WesternAnimation/HeyArnold other]] [[WesternAnimation/DinosaurTrain shows]], both of which had 100 episodes over the course of 8-11 years. ''Ready Jet Go!'' lasted 64 episodes (each with TwoShorts that lasted 11 minutes) over the course of 3 years, making it very nearly a SixtyFiveEpisodeCartoon and the shortest-lived of his works.
* ''WesternAnimation/{{Redakai}}'' - Lasted two seasons before the card game it was based on ended and took it with it.
* ''WesternAnimation/{{Redwall}}'' - stopped after three seasons before the rest of the novels could have been adapted.
* ''WesternAnimation/RenAndStimpyAdultPartyCartoon'' - Aired only three out of six episodes.
* ''WesternAnimation/ReturnToThePlanetOfTheApes''
* ''WesternAnimation/RightNowKapow''
* ''WesternAnimation/RichieRich1996''
* ''WesternAnimation/RickAndSteveTheHappiestGayCoupleInAllTheWorld''
* ''WesternAnimation/RingRaiders'' - Aired 5 episodes total.
* ''WesternAnimation/TheRippingFriends''
* ''WesternAnimation/RiseOfTheTeenageMutantNinjaTurtles''
* ''WesternAnimation/RoadRovers''
* ''WesternAnimation/RobinsonSucroe'' - Aired for 26 episodes before it stopped.
* ''WesternAnimation/{{Robotboy}}''
* ''WesternAnimation/{{Robotomy}}'' - Has the dubious honour of being Creator/CartoonNetwork's shortest-living full series at 10 fifteen-minute shorts.
* ''WesternAnimation/RobotAndMonster''
* ''WesternAnimation/TheRocketeer''
* ''WesternAnimation/{{Rollbots}}''
* ''WesternAnimation/RubyGloom'' - Spanned 40 episodes in 2 seasons.
* ''WesternAnimation/RugratsPreSchoolDaze'' - A failed spin-off of ''WesternAnimation/{{Rugrats}}''. All four episodes were released DirectToVideo in between 2005 and 2006 in the US after airing in other countries, and had premiered on Nick early in the morning in December 2008 and never aired again.
* ''WesternAnimation/SabrinaTheAnimatedSeries'' - Lasted one season and [[SixtyFiveEpisodeCartoon stopped at 65 episodes]].
* ''WesternAnimation/SagwaTheChineseSiameseCat'' - Fell victim to the 40-episode cutoff mandate for early 2000s kids shows.
* ''WesternAnimation/TheAdventuresOfSamAndMaxFreelancePolice''
* ''WesternAnimation/ScoobyDooAndGuessWho''
* ''WesternAnimation/ScoobyDooAndScrappyDoo''
* ''WesternAnimation/TheSecretFilesOfTheSpyDogs''
* ''WesternAnimation/SecretMountainFortAwesome''
* ''WesternAnimation/TheSecretShow''- Ran for 52 episodes over two series.
* ''WesternAnimation/TheSecretWorldOfSantaClaus''
* ''WesternAnimation/{{Sectaurs}}'' - Only a FiveEpisodePilot was produced.
* ''WesternAnimation/ShaggyAndScoobyDooGetAClue''
* ''WesternAnimation/SheepInTheBigCity'' - Ended after 26 episodes (two seasons of 13 episodes each) and a year and some change on air. Almost didn't even get a second season.
* ''WesternAnimation/SheriffCalliesWildWest''
* ''WesternAnimation/{{Sherm}}''
* ''WesternAnimation/SheZow''
* ''WesternAnimation/TheShnookumsAndMeatFunnyCartoonShow''
* ''WesternAnimation/ShortyMcShortsShorts''
* ''WesternAnimation/ShurikenSchool'' - [[AcclaimedFlop Despite being praised by viewers, it had a short run]].
* ''WesternAnimation/TheSilverBrumby''
* ''WesternAnimation/SilverSurferTheAnimatedSeries''
* ''WesternAnimation/{{Silverwing}}'' - Aired 13 episodes before ending before it could adapt the other novels.
* ''WesternAnimation/SimonInTheLandOfChalkDrawings2002'' - Aired in September 2002 on Teletoon.
* ''WesternAnimation/SitDownShutUp''
* ''WesternAnimation/SkunkFu''
* ''WesternAnimation/SlackerCats''
* ''WesternAnimation/SonicTheHedgehogSatAM''
* ''WesternAnimation/SonicUnderground''
* ''WesternAnimation/SoulQuestOverdrive''
* ''WesternAnimation/SpacedOut''
* ''WesternAnimation/TheSpaghettiFamily''
* ''WesternAnimation/TheSpectacularSpiderMan'' - Two full seasons, but one of the few cases where it wasn't cancelled because of low ratings or executive decision (heck, if anything fans loved the show and it was critically acclaimed to boot), but rather rights issues. At the time, Disney had bought up Marvel and began the Marvel Cinematic Universe, taking up the copyrights of superheroes. Spider-Man was still in Sony's hands, however, and they refused to give up the film rights, but agreed to give away the TV rights instead. This unfortunately meant ''Spectacular Spider-Man'' had to be cancelled since, if Disney wanted to continue it, they would have to ''pay'' Sony to keep doing so since the cartoon was made in-house at Sony and technically their property. Naturally, Disney refused on that front much to the dismay of fans. If that wasn't bad enough, the series ended on a major DownerEnding which was meant to lead into the third season.
* ''WesternAnimation/SpicyCity''
* ''WesternAnimation/Spider1991''
* ''WesternAnimation/SpiderManAndHisAmazingFriends''
* ''WesternAnimation/SpiderManTheNewAnimatedSeries''
* ''WesternAnimation/SpiderManUnlimited''
* ''WesternAnimation/SpiderWoman''
* ''WesternAnimation/SpiralZone''
* ''WesternAnimation/SplashAndBubbles'' - Cancelled after one season due to a lack of funding.
* ''WesternAnimation/{{Spliced}}'' - Series co-creator Simon Racioppa stated that the series did well enough that there were considerations for a second season, but circumstances beyond their control led to these plans being axed.
* ''WesternAnimation/SpyGroove''
* ''WesternAnimation/SquirrelBoy''
* ''WesternAnimation/StarTrekTheAnimatedSeries''
* ''WesternAnimation/StarTrekProdigy ''
* ''WesternAnimation/StarWarsResistance''
* ''WesternAnimation/StationZero''
* ''WesternAnimation/{{Stoked}}'' - While Creator/{{Teletoon}} aired both seasons in Canada, Creator/CartoonNetwork cancelled the show after only 22 episodes. This meant that none of the episodes from season 2 aired in the United States, nor the remaining episodes of season 1.
* ''WesternAnimation/StoppitAndTidyup''
* ''WesternAnimation/StrangeHillHigh''
* ''WesternAnimation/StretchArmstrongAndTheFlexFighters''
* ''WesternAnimation/{{Stripperella}}''
* ''WesternAnimation/StrokerAndHoop''
* ''WesternAnimation/SumoMouse''
* ''WesternAnimation/SundayPants'' - Creator/CartoonNetwork unceremoniously cancelled the show for unknown reasons (most likely because it was too inappropriate for children) after a month on the air, leaving six out of its eleven finished episodes unaired.
* ''WesternAnimation/TheSuperMarioBrosSuperShow''
* ''WesternAnimation/SuperMarioWorld''
* ''WesternAnimation/SwampThing'' - The show had 5 episodes which aired sporadically on Fox Kids in the early 90's.
* ''WesternAnimation/SWATKats'' - Despite high ratings, the show was cancelled with 3 episodes left incomplete, so Creator/HannaBarbera could focus on ''WesternAnimation/WhatACartoon''. A revival titled ''SWAT Kats Revolution'' is planned, but was in DevelopmentHell until 2022 when Indian company Toonz Media Group picked it up.
* ''WesternAnimation/SylvanianFamilies''
* ''WesternAnimation/SymBionicTitan'' - One 20-episode season was aired before the plug was pulled due to, of all things, being unable to get a liscencing deal for a toyline.
* ''WesternAnimation/TheTalentedMrBixby''
* ''WesternAnimation/TakAndThePowerOfJuju2007''
* ''WesternAnimation/{{Tarantula}}''
* ''WesternAnimation/TeachersPet'' - The show had 39 episodes for seasons 1 and 2.
* ''WesternAnimation/ThunderCats2011'' - Ended after a single season of 26 episodes due to poor merchandising sales.
* ''WesternAnimation/ThunderCatsRoar'' - The show ended after 1 season of 52 episodes.
* ''WesternAnimation/ElTigreTheAdventuresOfMannyRivera'' - Full season, 26 episodes. Was popular but cancelled as it wasn't gaining the ratings of fellow Nicktoon, ''WesternAnimation/SpongeBobSquarePants''.
* ''WesternAnimation/TimeSquad'' - had 26 episodes over two seasons.
* ''WesternAnimation/TimeWarpTrio'' - Was cancelled after 26 episodes and ended with an improper finale.
* ''WesternAnimation/TimothyGoesToSchool'' - Only 26 episodes were made between 2000 and 2001.
* ''WesternAnimation/TitanMaximum''
* ''WesternAnimation/ToadPatrol'' - Ended after 26 episodes over two seasons, a third season was planned but was cancelled.
* ''WesternAnimation/TheTofus''
* ''WesternAnimation/TomAndJerryTales''
* ''WesternAnimation/ToonMarty''
* ''WesternAnimation/{{Toonsylvania}}''
* ''WesternAnimation/TootAndPuddle''
* ''WesternAnimation/TopCat''
* ''WesternAnimation/ToxicCrusaders''
* ''WesternAnimation/{{Trollz}}''
* ''WesternAnimation/TronUprising''
* ''WesternAnimation/TucaAndBertie'' - Initially ran for 1 season of 10 episodes on Creator/{{Netflix}}, then was rescued by Creator/AdultSwim and had 2 more seasons of 10 before being canned again, bringing the episode total to 30.
* ''WesternAnimation/{{Tugs}}''
* ''WesternAnimation/{{Tupu}}''
* ''WesternAnimation/TurtleIsland'' - 26 episodes produced and originally aired in 1995.
* ''WesternAnimation/TwelveForever''
* ''WesternAnimation/UglyAmericans''
* ''WesternAnimation/UltimateBookOfSpells''
* ''WesternAnimation/{{Undergrads}}''
* ''WesternAnimation/UrbanVermin''
* ''WesternAnimation/VictorAndHugo''
* ''WesternAnimation/{{Visionaries}}''
* ''WesternAnimation/VoltronForce''
* ''WesternAnimation/VoltronTheThirdDimension''
* ''WesternAnimation/VytorTheStarfireChampion''
* ''WesternAnimation/WatchMyChops''
* ''WesternAnimation/{{Waynehead}}''
* ''WesternAnimation/{{Wayside}}''
* ''WesternAnimation/WeirdYears''
* ''WesternAnimation/WelcomeToTheWayne''
* ''WesternAnimation/WhateverHappenedToRobotJones'' - The question should be whatever happened to ''this'' show of just 13 episodes.
* ''WesternAnimation/WhatItsLikeBeingAlone''
* ''WesternAnimation/WheresHuddles''
* ''WesternAnimation/WheresWaldo2019'' was planned to have only 40 stories produced.
* ''WesternAnimation/WildCATs1994''
* ''WesternAnimation/WillAndDeWitt''
* ''WesternAnimation/{{Wishfart}}''
* ''WesternAnimation/WishKid'' - 13 episodes. The series ended on the same year as its premiere, making it one of the quickest cartoons of the 1990s.
* ''WesternAnimation/TheWizardOfOz''
* ''WesternAnimation/WorldOfWinx''
* ''WesternAnimation/TheWuzzles''
* ''WesternAnimation/TheXs'' - 19 episodes were aired, and a 20th wasn’t.
* ''WesternAnimation/XiaolinChronicles''
* ''WesternAnimation/Xyber9NewDawn''
* ''WesternAnimation/YabbaDabbaDinosaurs''
* ''WesternAnimation/YakkityYak''
* ''WesternAnimation/YinYangYo''
* ''WesternAnimation/YoohooAndFriends'' lasted only under a year for 26 episodes (52 segments), and was intended by the studio to get a second season but couldn't. The [[Animation/YooHooAndFriends show it was dubbed after]], however, [[LongRunners was not a short runner]].
* ''WesternAnimation/ZekesPad''
* ''WesternAnimation/{{Zeroman}}'' had plans for a second season, but they were cancelled after Zeroman's voice actor, Creator/LeslieNielsen, passed away.
* ''WesternAnimation/Zevo3''
* ''WesternAnimation/TheZhuZhus''
[[/index]]
