Line #145 Crossover/WesternAnimation


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6	%% This list of examples has been alphabetized. Please add your example in the proper place. Thanks!
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15	[[quoteright:350:[[WesternAnimation/TheSimpsons https://static.tvtropes.org/pmwiki/pub/images/bender_and_homer_are_friends.png]]]]
16	[[caption-width-right:350:Drinking brings the most [[WesternAnimation/TheSimpsons awesome]] of [[WesternAnimation/{{Futurama}} characters]] together.]]
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19	%% Caption selected per above thread. Please don't change or remove without approval from here:
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23	Let's admit it, there are few things [[MostTropersAreYoungNerds us nerds]] like more than a [[WesternAnimation cartoon]] {{crossover}}!
24	----
25	* Back in 1972, ''The ABC Saturday Superstar Movie'' anthology series featured ''WesternAnimation/LooneyTunes'' characters in a Creator/{{Filmation}} production, ''WesternAnimation/DaffyDuckAndPorkyPigMeetTheGroovieGoolies'' -- an atypical crossover of characters from different animation studios. (Consider that veteran WB animators, such as Ted Bonnicksen, Virgil Ross, and Norm [=McCabe=], were all working at Filmation at the time.)
26	** Earlier in the series, King Features had produced a film, ''WesternAnimation/TheManWhoHatedLaughter'', which featured a crossover of characters such as ComicStrip/Blondie1930, ComicStrip/BeetleBailey, ComicStrip/FlashGordon, ComicStrip/HiAndLois, ComicStrip/TheKatzenjammerKids, ComicStrip/MandrakeTheMagician, ComicStrip/ThePhantom, ComicStrip/{{Popeye}}, ComicStrip/PrinceValiant, and Snuffy Smith from the syndicate's various comic strips.
27	** Another King Features example: The main characters of ''WesternAnimation/DefendersOfTheEarth'' (King's action/adventure heroes Flash Gordon, The Phantom and Mandrake the Magician) were all from previous series, making the entire series a Crossover.
28	*** Parodied by ''WesternAnimation/RobotChicken'': "ComicStrip/FlashGordon! ComicStrip/ThePhantom! ComicStrip/MandrakeTheMagician! These three heroes united by a quest for justice, and the coincidence they're all owned by Creator/KingFeaturesSyndicate, now defend the Earth as... the Defenders of the Earth!"
29	* ''WesternAnimation/AceVenturaPetDetective'' and ''WesternAnimation/TheMask'' crossed over on two episodes: the final episode of ''The Mask'' ("The Aceman Cometh") and the last episode of ''Ace Ventura'''s second season ("Have Mask, Will Travel").
30	* WesternAnimation/BubbleGuppies crossed over with Animation/BabySharksBigShow in the episode "The Jaw-some Shark-venture!"
31	* ''WesternAnimation/AlvinAndTheChipmunks'' once had a crossover with... ''WesternAnimation/TheAlvinShow Alvin And The Chipmunks''. Or rather, the 1980s cartoon chipmunks got to meet their 1960s counterparts in a manner involving time travel, similar to ''WesternAnimation/TurtlesForever''.
32	* ''WesternAnimation/HerculesTheAnimatedSeries'' crossed over with ''WesternAnimation/AladdinTheSeries'' in [[Recap/HerculesTheAnimatedSeriesS1E44HerculesAndTheArabianNight one memorable episode]] [[VillainTeamUp featuring Jafar convicning Hades to team up with him.]]
33	* The ''WesternAnimation/BatmanTheAnimatedSeries'' vs ''Anime/PokemonTheSeries'' promos on Creator/KidsWB. [[https://www.youtube.com/watch?v=O4e3CDc1r5k Part One]] [[https://www.youtube.com/watch?v=uqH5WZhaKEw and Two.]]
34	** Several other promos running on Kids WB featured similar interactive crossovers among the block's various shows.
35	* A ''WesternAnimation/{{Ben 10}}'' and ''WesternAnimation/GeneratorRex'' crossover titled ''[[WesternAnimation/Ben10GeneratorRexHeroesUnited Ben 10/Generator Rex: Heroes United]]'' aired on Creator/CartoonNetwork during Thanksgiving 2011, as a "special, extended" episode of Generator Rex. A clip was shown at Comic-Con 2011, in which Ben is seen entering Rex's world through a portal, and is at first [[LetsYouAndHimFight mistaken for an EVO]].
36	** The ''WesternAnimation/Ben10Omniverse'' epsiode "T.G.I.S." sees the title characters of ''WesternAnimation/TheSecretSaturdays'' appear, teaming up with Ben and Rook. Unlike the crossover with ''Generator Rex'', the team-up is presented as (as per WordOfGod by Jay Stephens, the creator of ''TSS'') as them existing in the same universe. WesternAnimation/CowAndChicken (or at least two aliens that look like them) have also made a cameo in the show, complete with their original voice actor.
37	* Some of the online shorts for ''WesternAnimation/BluesCluesAndYou'' have featured other Nick Jr. characters, such as WesternAnimation/AbbyHatcher and Molly from ''WesternAnimation/BubbleGuppies'' coming over to the Blue's Clues house for Halloween.
38	* The all-too-trippy anti-drug {{P\|ublicServiceAnnouncement}}SA ''WesternAnimation/CartoonAllStarsToTheRescue''?
39	* Creator/CartoonNetwork [[https://www.youtube.com/watch?v=Lt074nJUthI has done]] [[https://www.youtube.com/watch?v=aji96i_z7xE many promo spots]] [[https://www.youtube.com/watch?v=DZbmong_T44 for itself]] [[https://www.youtube.com/watch?v=Pzth7hcueTs using odd]] [[https://www.youtube.com/watch?v=H8WPmNYDtU0 and unusual crossovers]] such as Shaggy from ''Franchise/ScoobyDoo'' and Droopy Dog discussing what they call ''The Pound Puppies'' in France while driving a (live-action) convertible in (live-action) L.A., à la ''Film/PulpFiction''.
40	** Another showed a group of sidekicks discussing their position at [[WesternAnimation/JonnyQuest Hadji's]], while [[WesternAnimation/CowAndChicken Chicken]] protested that [[InsistentTerminology he was a co-star, not a sidekick]]. "My name is in the title, for cryin' out loud!"
41	** There's one line of promos they did called "Perfect as It Is", which show that certain cartoon character cross pairings just don't work out right. Take a look at "[[https://www.youtube.com/watch?v=X23fDk_UmT4 Tom and Speedy]]" (there was also "Road Runner & Dexter" and "Batman and WesternAnimation/InchHighPrivateEye".
42	** Creator/CartoonNetwork liked the concept of [[https://www.youtube.com/watch?v=6juEOmOaYVk having their characters]] [[https://www.youtube.com/watch?v=EkbdAKna3EU in one workplace]]. It's even shown on the [[https://www.youtube.com/watch?v=1AH6QWK6z6Q Friday Nights]] intro.
43	** "Tom and Speedy" could work. After all, Speedy Gonzales' nemesis is Sylvester, which is just Tom with a lispy voice.
44	** The WesternAnimation/{{Superfriends}} and WesternAnimation/ThePowerpuffGirls [[http://youtu.be/2-8lAEB_1NE here]].
45	** Yet another had Fred Flintstone, Chicken, and WesternAnimation/ThundarrTheBarbarian returning from lunch and futilely searching for a parking space. Thundarr is incensed that Papa Smurf has a reserved space:
46	--->'''Thundarr:''' Can no leader go untainted?!
47	*** You can also see them [[ContinuityNod still going to work together]] in the Friday nights intro.
48	* Comic Book Guy from ''WesternAnimation/TheSimpsons'' cameoed in one episode of ''WesternAnimation/TheClevelandShow''.
49	-->"WORST. CAMEO. EVER!"
50	* ''The Simpsons'' had crossovers with ''Family Guy'' and ''WesternAnimation/{{Futurama}}''.
51	** The ''WesternAnimation/FamilyGuy'' episode "The Simpsons Guy" has the Griffins escaping from Quahog because of Peter making a sexist comic and end up in Springfield, where they meet and befriend the Simpsons. Then Homer and Peter start a fight (à la Giant Chicken) over which beer is better and nearly destroy Springfield.
52	* A crossover of ''WesternAnimation/DarkwingDuck'' with ''WesternAnimation/ChipNDaleRescueRangers'' [[WhatCouldHaveBeen was planned but was never produced beyond a few voices]]. A quick clip of these voices can be heard in the ''Darkwing'' episode "Twitching Channels". The series did have ''WesternAnimation/DuckTales1987'' Gizmoduck as a recurring character though and in one episode, the entire recurring villain cast from ''[=DuckTales=]'' showed up in one scene.
53	* ''WesternAnimation/DextersLaboratory'', Justice Friends and Monkey with each other, but also one episode with WesternAnimation/DynomuttDogWonder.
54	* ''WesternAnimation/DocMcStuffins'': A special episode [[http://www.broadcastingcable.com/news/currency/doc-mcstuffins-meets-pooh-and-friends/162193 that aired on January 18, 2017]] ([[PopCultureHoliday National Winnie-the-Pooh Day]]) featured characters from ''Franchise/WinnieThePooh''.
55	* ''WesternAnimation/ElenaAndTheSecretOfAvalor'' is a crossover movie between Craig Gerber's two shows, ''WesternAnimation/SofiaTheFirst'' and ''WesternAnimation/ElenaOfAvalor''.
56	* ''WesternAnimation/EekTheCat'', it would seem, [[SharedUniverse shares a universe]] with ''Series/TheXFiles''; the episode "Eek Space 9" features cameos by Mulder and Scully (several years before ''The Simpsons'') - an alien ship crashes into Scully's office and she screams that he was right all along [[spoiler:([[HilariousInHindsight an accurate prediction of how her character turned out on the live-action show]])]]! And yes, they ''are'' voiced by Mr. Duchovny and Miss Anderson, which makes it even funnier.
57	* ''WesternAnimation/TheFairlyOddParents'' and ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' crossed over three times in ''WesternAnimation/TheJimmyTimmyPowerHour'' Trilogy. This was an interesting exercise because one show is ThickLineAnimation while the other is computer-generated, requiring the characters to be [[MediumBlending re-animated in the appropriate style]] while in the "other" show's universe. Worth noting that the shows, unlike most crossovers, were ''NOT'' from the same creator (though both are still distributed by Nickelodeon). Also notable for the "MagicVersusScience" theme in all three specials.
58	** Eventually, this led to the ''VideoGame/NicktoonsUnite'' video game series, which had those three specials as their basis (and made some {{continuity nod}}s towards them).
59	** The Fairly Oddparents ''did'' cross over with another show that ''was'' created by Creator/ButchHartman in 2017, when it crossed over with ''WesternAnimation/BunsenIsABeast''.
60	* Creator/ButchHartman also created a short that featured characters from [[WesternAnimation/TuffPuppy three]] [[WesternAnimation/TheFairlyOddparents of his]] [[WesternAnimation/BunsenIsABeast shows]] crossing over into his other show, ''WesternAnimation/DannyPhantom''.
61	* In an ad for Morning Funnies Cereal, [[ComicStrip/DennisTheMenaceUS Dennis the Menace]] is sitting on Mr. Wilson's porch when a MassiveMultiplayerCrossover occurs. Characters from ''ComicStrip/BeetleBailey'', ''ComicStrip/TheFamilyCircus'', ''ComicStrip/FunkyWinkerbean'', ''ComicStrip/HagarTheHorrible'', ''ComicStrip/{{Luann}}'', and ''ComicStrip/{{Marvin}}'' invade the dining room, rudely eat cereal, and abruptly leave.
62	* Creator/SethMacFarlane's ''WesternAnimation/FamilyGuy'', ''WesternAnimation/AmericanDad'', and ''WesternAnimation/TheClevelandShow'' have had characters make occasional appearances, but the first true crossover among them is ''Night of the Hurricane'', in which Hurricane Flozell affects all three shows and the actual "crossing over" occurs after the hurricane when Cleveland Brown, Stan Smith and Peter Griffin get involved in a stand-off.
63	** The Family Guy episode "Bigfat" featured a ColdOpening where the Griffins meet the Smith family, who had moved into Cleveland's old house, which ends when Stan shoots Peter dead. Only for it to turn out to be just a dream that Peter is having, only for it to turn out to be a DreamWithinADream being had by [[WesternAnimation/KingOfTheHill Hank Hill]], who complains that he always wakes up before finding out if they understand the baby (Stewie).
64	* ''WesternAnimation/{{Freakazoid}}'', ''WesternAnimation/{{Animaniacs}}'', and ''WesternAnimation/PinkyAndTheBrain'' did a crossover in [[https://www.youtube.com/watch?v=2NLrjVnMO7k this]] clip.
65	** ''WesternAnimation/{{Animaniacs}}'' sometimes did crossovers with other cartoons on its show, including one incident where Franchise/{{Batman}} rescued them from an angry fairy (as Yakko's Shakespeare recital had foretold). Coincidentally, ''WesternAnimation/BatmanTheAnimatedSeries'' aired right afterward.
66	*** One ''Animaniacs'' episode featured internal crossovers, with Dot and Slappy Squirrel trading places, as well as shorts featuring Mindy and the Brain, Pinky and the Cat (Rita), and Pesto and Runt.
67	*** And sometimes characters from ''WesternAnimation/TinyToonAdventures'' would show up for a cameo or guest appearance.
68	* It was a bit more subtle than most of these examples, but ''Franchise/GIJoe'' crossed over with ''WesternAnimation/TheTransformers'' in the episode "Only Human". A masked character named "Old Snake" (voiced by Chris Latta) helps the BigBad of the week with a machine to put Transformers' minds into synthetic human bodies. After the plan inevitably fails, Old Snake escapes and idly muses that "they just don't make terrorists like they used to", then raises his arms and yells "COBRAAAAAA!", ending in a coughing fit.
69	** At the time the episode aired, it initially had a hard time fitting in with the events of ''WesternAnimation/GIJoeTheMovie'', where Cobra Commander was transformed into an humanoid yellow cobra-man and then finally doomed to a fate as an actual non-anthropomorphic cobra. However in "Only Human", Cobra Commander is obviously humanoid and visible from his torn-up gloves are hands covered in yellow scales; presumably in reference to when he was transformed into a yellow-scaled snake man in the movie. Through what was likely coincidence, this seemingly erroneous depiction of a future Cobra Commander was later made to make sense: In 1989 (three years after "Only Human" originally aired), [=DiC=] produced a continuation of the ''G.I. Joe'' animated series, beginning with the five-part mini-series "Operation: Dragonfire". In this mini-series, Cobra Commander is still just a snake, but he's eventually returned into a humanoid form (specifically the snake-man form) by the Baroness.
70	** And from the same season, recurring character Marissa Faireborne was obviously the daughter of Flint (Dashiell R. Faireborne) and Lady Jaye. The DVD commentary for ''WesternAnimation/TheTransformersTheMovie'' finally admitted this officially.
71	*** One "cameo" was made when a hologram version of an aged Flint was used in order to trick Marissa in one episode.
72	** In a more meta case, many of Marvel/Sunbow's cartoons of TheEighties (''Transformers, G.I. Joe, WesternAnimation/{{Inhumanoids}}, WesternAnimation/{{Jem}}'' etc.) were tied into each other via Hector Ramirez, an {{Expy}} of television reporter Geraldo Rivera. Hector would show up just about any time a story needed a television reporter, suggesting the shows all resided in a shared universe. ''Jem'' also features a few {{Shout Out}}s to ''GI Joe'' and ''Transformers''.
73	* "WesternAnimation/{{The Grim Adventures\|OfBillyAndMandy}} of [[WesternAnimation/CodenameKidsNextDoor the KND]]" was really more of a ''Kids Next Door'' episode with ''Billy and Mandy'' characters, but many plot points rely on the main characters of the latter (such as the AppliedPhlebotinum). There were also many a ShoutOut to other Cartoon Network original properties, including a brief ArtShift to the world of ''WesternAnimation/EdEddNEddy''.
74	** TheStinger of "WesternAnimation/{{The Grim Adventures\|OfBillyAndMandy}} of [[WesternAnimation/CodenameKidsNextDoor the KND]]" shows a couple posters promoting five (fake) crossover specials called "[[WesternAnimation/EdEddNEddy Ed, Edd, N']] [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Mandy]]", "[[WesternAnimation/EvilConCarne Evil]] [[WesternAnimation/CampLazlo Camp Carne]]", "[[WesternAnimation/ClassOf3000 Class of]] [[WesternAnimation/CodenameKidsNextDoor Numbuh 3000]]", "[[WesternAnimation/MyGymPartnersAMonkey My Gym Partner's]] [[WesternAnimation/DextersLaboratory A Mandark]]" and "[[WesternAnimation/SamuraiJack Samurai]] [[WesternAnimation/FostersHomeForImaginaryFriends Mac]]".
75	** Fred Flintstone made a guest appearance in an episode of ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'' strangely enough, though no one ever referred to him by name. He was referred to as "Jake Steele!" (by Billy, of course, because when Fred try to tell Billy his name, Billy assumed he was still talking in caveman) and spoke only in "Yabba dabbas". [[spoiler:That is, until the end of the episode]].
76	** In the same light, WesternAnimation/YogiBear, Boo Boo, Scooby-Doo, and other Creator/HannaBarbera characters showed up in GABM as well.
77	* ''WesternAnimation/TheGrinchGrinchesTheCatInTheHat'' was a 1982 TV movie in which two of the most famous creations of Creator/DrSeuss butt heads when the cheerful Cat ends up the target of the grouchy Grinch's pranks.
78	* Creator/HannaBarbera did this a ''lot''.
79	** ''Franchise/ScoobyDoo'' had ''WesternAnimation/TheNewScoobyDooMovies'' a show explicitly made for crossovers with other shows and real celebrities.
80	** Other Hanna-Barbera examples are ''WesternAnimation/LaffALympics'' and ''WesternAnimation/YogisGang''.
81	** ''WesternAnimation/TheJetsonsMeetTheFlintstones'' was one of the few movies they did of this.
82	** Continued in later examples like ''WesternAnimation/ScoobyDooInArabianNights''.
83	** There was a multi-episode arc of ''WesternAnimation/SpaceGhost'' where the title character went up against the Council of Doom, each of whom managed to defeat Space Ghost and banish him to some other realm/time/planet, just so the other Hanna-Barbera heroes of that setting could help save him. This allowed Space Ghost to team up with ''WesternAnimation/TheHerculoids'', ''WesternAnimation/MightyMightor'', ''WesternAnimation/{{Shazzan}}'', and ''[[WesternAnimation/MobyDickHannaBarbera Moby Dick]]'' .
84	** The 1981/82 Hanna-Barbera show ''WesternAnimation/SpaceStars'' was also built around this trope. Each hourlong episode would have a short eight- to 10-minute segment starring one of the show's hero teams: WesternAnimation/SpaceGhost, WesternAnimation/TheHerculoids, the Teen Force, and Astro from ''WesternAnimation/TheJetsons''. The last five to 10 minutes of the show would then be a "Space Stars Finale" team-up between two or more of the groups against a common foe.
85	** Yogi Bear and Boo Boo once turned up in a ''Flintstones'' episode. Apparently, those bears are really, really old. Or able to time-travel. Or [[BreadEggsBreadedEggs both]].
86	** A rare live-action to animation crossover took place on ''The Flintstones'' when [[Series/{{Bewitched}} Samantha and Darrin moved in next door]] (both series aired on ABC, and ''Bewitched'' was made by ''The Flintstones'''s (then) distributor [[Creator/ColumbiaPictures Screen Gems]]). How old ''is'' Samantha, anyway?
87	*** And, as a bonus, Hanna-Barbera animated the opening titles for ''Bewitched'' and reused the characters' designs for their stone-age counterparts.
88	** Ironically averted with several of the later Flintstone shows, such as ''WesternAnimation/FredAndBarneyMeetTheThing''. They never actually met, it was just some Flintstone shorts mixed with shorts that featured a teenage version of [[ComicBook/FantasticFour the Thing]].
89	* ''WesternAnimation/HarveyBirdmanAttorneyAtLaw'' is nearly built around this trope. Most episodes involved Harvey's law firm taking the case of some 1960s or 1970s Hanna-Barbera cartoon character.
90	* [[WesternAnimation/HeManAndTheMastersOfTheUniverse1983 He-Man]] and [[WesternAnimation/SheRaPrincessOfPower She-Ra]] did this more than once, as special episodes. Made sense, since they were siblings, but every time it happened it was a big deal. The two would do their transformation sequences simultaneously, making for a doubly psych-up scene. Strangely[[note]] or not, if you're a cheap scene-recycling animation house[[/note]] though, despite being in the same place at the time, they would then each appear in front of their respective castles, which were located in different worlds.
91	* ''WesternAnimation/HouseOfMouse'' was all about Disney animated characters going to the house to watch various acts.
92	* WesternAnimation/InspectorGadget once [[https://www.youtube.com/watch?v=6pduYbyIGqM#t=1m14s paid a visit]] to the live-action half of ''Series/TheSuperMarioBrosSuperShow'', played by a svelte young Creator/MauriceLaMarche.
93	* The George Pal Puppetoon ''Jasper Goes Hunting'' has a cameo by WesternAnimation/BugsBunny as Jasper and Scarecrow hunt for a rabbit.
94	* ''WesternAnimation/JohnnyBravo'', "Bravo-Dooby-Doo": Johnny hitches a ride with the cast of ''WesternAnimation/ScoobyDooWhereAreYou'' to his great-aunt's mansion. There they solve a mystery, all while [[LampshadeHanging poking some fun]] at the odder quirks of ''Scooby-Doo''. At the end, WesternAnimation/SpeedBuggy shows up.
95	** A later episode has a past incarnation of Johnny meeting Fred Flintstone.
96	** The later seasons had a lot of episodes revolving around Johnny meeting other cartoon characters. Blue Falcon, Huckleberry Hound, Music/WeirdAlYankovic...
97	* ''WesternAnimation/LiloAndStitchTheSeries'' had four episodes crossing over with another Disney series each - one for ''WesternAnimation/KimPossible'', ''WesternAnimation/{{Recess}}'', ''WesternAnimation/AmericanDragonJakeLong'', and ''WesternAnimation/TheProudFamily''.
98	* Additionally, the ''WesternAnimation/LooneyTunes'' characters made several guest cameos on ''WesternAnimation/{{Animaniacs}}'' and ''WesternAnimation/{{Histeria}}''.
99	** Buddy, the failed successor to Bosko, appeared in ''The Warners 65th Anniversary Special''.
100	** Bosko himself and his girlfriend, Honey, were the subject of the ''WesternAnimation/TinyToonAdventures'' episode "Field of Honey", and let's not forget the lesser known characters of Foxy, Roxy, and Goopy being the focus of another.
101	** Which wasn't rare for Tiny Toons, since the whole plot of the show is the main characters are the proteges of famous "Looney Tunes" characters.
102	* [[Recap/TheLoudHouseS2E22LegendsMallOfDuty One episode of]] ''WesternAnimation/TheLoudHouse'' crossed over with, of all things, ''Series/LegendsOfTheHiddenTemple''.
103	** [[Recap/TheLoudHouseS4E25HowDoubleDareYouSnoopsOn Another episode]] had them crossover with ''Series/DoubleDare''.
104	* ''WesternAnimation/MiloMurphysLaw'' exists in a SharedUniverse with Dan Povenmire and Jeff "Swampy" Marsh's previous show, ''WesternAnimation/PhineasAndFerb'', and {{Easter Egg}}s are scattered around the show. In the [[Recap/MiloMurphysLawS1E34FungusAmongUs season one finale]], Milo, Dakota, and Cavendish meet Dr. Doofenshmirtz, and the [[Recap/MiloMurphysLawS2E01ThePhineasAndFerbEffect season two premiere]] is a full-blown crossover episode. It ends with Doofenshmirtz moving in with the Murphys indefinitely, and in the final minutes, Milo tells Phineas and Ferb that they live just across town from each other, so they can feel free to cross over whenever they like. [[SequelHook Phineas assures him they will.]]
105	* ''WesternAnimation/OKKOLetsBeHeroes'':
106	** "The Power Is Yours!" is a crossover with ''WesternAnimation/CaptainPlanet'', even bringing back the original voices for Kwame and Captain Planet, who try to help clean up the mess caused by Dr. Blight's team-up with Lord Boxman.
107	** "Crossover Nexus" was a four-way crossover with ''WesternAnimation/TeenTitansGo'', ''WesternAnimation/StevenUniverse'', and ''WesternAnimation/Ben102016'', in which K.O. teams up with Raven, Garnet, and Ben Tennyson to take on a fierce new foe who's been capturing heroes from all across CN City.
108	** The HalloweenEpisode "Monster Party" features some of the girls from ''WesternAnimation/ScoobyDooAndTheGhoulSchool'' as old friends of Enid.
109	** [[Recap/OKKOLetsBeHeroesS3E10LetsMeetSonic "Let's Meet Sonic"]] is an episode where K.O. meets '''[[Franchise/SonicTheHedgehog Sonic and Tails]]'''.
110	* ''WesternAnimation/PhineasAndFerb'' met a few of the Marvel superheroes and villains in ''WesternAnimation/PhineasAndFerbMissionMarvel''. While never acknowledged again by either show, they were voiced by the same actors from the ''WesternAnimation/AvengersAssemble'' and ''WesternAnimation/UltimateSpiderMan2012'' series, and more-or-less the same designs.[[note]]Granted, they're much more brightly colored and have slightly enlarged heads to make more sense with the ''P&F'' aesthetic.[[/note]]
111	* Creator/RankinBassProductions did it with ''WesternAnimation/RudolphAndFrostysChristmasInJuly'', combining Rudolph with ''WesternAnimation/FrostyTheSnowman'', ''Frosty's Winter Wonderland'', ''WesternAnimation/RudolphsShinyNewYear'', and it appears that ''WesternAnimation/SantaClausIsCominToTown'' and ''WesternAnimation/TheYearWithoutASantaClaus'' may figure in, but mostly in dialogue references rather than character appearances. Strangely, there were never any crossovers with characters from the original ''WesternAnimation/RudolphTheRedNosedReindeer'' special -- they only appeared again in ''Rudolph and the Island of Misfit Toys''.
112	* ''WesternAnimation/{{Rugrats}}'':
113	** ''Rugrats'' and ''WesternAnimation/TheWildThornberrys'' had a feature-film crossover, WesternAnimation/RugratsGoWild.
114	** One episode featured the babies coming up with a scary story, which featured a cameo by Ickis, Krumm, and Oblina from another Klasky-Csupo show, ''WesternAnimation/AaahhRealMonsters''.
115	* Building on the Scooby example above ''WesternAnimation/ScoobyDooMysteryIncorporated'' tried to accomplish this as a throwback to the Hanna-Barbera examples. But there is a BrokenBase how well they understood the above in this.
116	* Creator/MattGroening's shows ''WesternAnimation/TheSimpsons'' and ''WesternAnimation/{{Futurama}}'' tend to cross over for brief instances, including in the futuristic ''Simpsons'' episode "Future Drama".
117	-->''[Homer and Bart accidentally pick up Bender of ''Futurama'' while driving through a portal tunnel]''
118	-->'''Bender:''' ''Alright! You guys are my new best friends!''
119	-->'''Homer:''' ''You wish, loser!''
120	-->''[Throws Bender out the car.]''
121	** Then there was the time ''WesternAnimation/TheSimpsons'' crossed over with ''WesternAnimation/TheCritic'', which Matt Groening was against since ''The Critic'' has a completely different style and therefore did not have Groening's involvement. Because of this, Groening's name is not shown in the credits for "A Star is Burns" (making it the only instance that this has happened). However, Jay Sherman made cameos in two other episodes that ''did'' have Groening's name in the credits.
122	** And one of the show's couch gags featured the Simpsons meeting their ''[[Series/TheTraceyUllmanShow Tracey Ullman Show]]'' counterparts sitting on the sofa.
123	*** The 2014 Treehouse of Horror did this directly, with the ''[[Series/TheTraceyUllmanShow Tracey Ullman Show]]'' counterparts appearing as ghosts. Furthermore, at the end of the segment, various versions of the Simpsons appear, including anime counterparts which parody ''One Piece'', ''Bleach'', ''Naruto'', ''Attack on Titan'', ''Pokémon'', and ''Spirited Away''. Other ones include Lego characters and Minions from ''Franchise/DespicableMe''.
124	** Another couch gag had the Simpsons arrive on the couch via tubes right out of ''Futurama''; Fry briefly appeared from a tube before being sucked back in and replaced by Bart.
125	** In a season 26 couch gag, ''Franchise/RickAndMorty'' crash a space ship into the living room that smushes the Simpsons into yellow goop. Rick then sends Morty to another dimension with a vile of the goop that will make them new Simpsons. It works, except the new Simpsons all look like Rick since he cleaned the vile with his spit.
126	* ''WesternAnimation/SouthPark'' did a Cartoon Crossover where Mr. Garrison sought therapy from [[WesternAnimation/DrKatzProfessionalTherapist Dr. Katz]].
127	** Interestingly, ''Magazine/{{Mad}}'' did the very same crossover earlier.
128	** Also the "Imaginationland" trilogy could also be considered something of a massive crossover as well.
129	** Bart Simpson of ''WesternAnimation/TheSimpsons'' appears in the two-part "Cartoon Wars". There are even references to his series, including mentioning that he stole the head off a statue once (a reference to the episode "The Telltale Head") and him saying "Cowabunga!" (in ''WesternAnimation/TheSimpsons'' episode "Behind the Laughter", Bart, after a sketch written by Homer in which Bart has the line "Cowabunga!", remarks with irritation that he's never said "Cowabunga" in his life).
130	* Soaky was a bubble bath product marketed in the 60s that were in containers resembling cartoon stars of the time. The commercial spots had some rather bizarre pairings--ComicBook/{{Superman}} with [[WesternAnimation/TennesseeTuxedoAndHisTales Tennessee Tuxedo]], WesternAnimation/MightyMouse with [[WesternAnimation/TheAlvinShow Alvin]] (and later [[WesternAnimation/BozoTheWorldsMostFamousClown Bozo the Clown]]), and [[WesternAnimation/TheDickTracyShow Dick Tracy]] with [[WesternAnimation/TheDeputyDawgShow Muskie Muskrat]]. An earlier spot had Donald Duck and Porky Pig but not together. The product mascot the Soaky Kid made separate phone calls to them in the commercial.
131	* The [[Creator/DisneyChannel Disney Junior]] preschool shows ''WesternAnimation/SpecialAgentOso'' and ''WesternAnimation/HandyManny'' had a crossover called "The Manny with the Golden Bear," in which Oso called in Handy Manny when he [Oso] had to help a kid who had a broken bike.
132	* ''WesternAnimation/SpiderManTheAnimatedSeries'' had a crossover with ''WesternAnimation/XMenTheAnimatedSeries''. It was considered a big deal because it was a completely different animation studio involving the then-current roster from X-Men in a show that was not their own. Even more impressive was the effort put into keeping all the same cast for the sake of continuity. Even more fun, the crossover remains in continuity for Spider-Man, as ComicBook/{{Storm\|MarvelComics}} returns during the series' adaptation of the ''ComicBook/SecretWars1984'' crossover event.
133	** Creator/RobertHays also reprised his role from ''WesternAnimation/IronManTheAnimatedSeries'' in several episodes.
134	*** The Marvel cartoons from around this era were frequently cameo-ing in each other's series, as well (though it's hard to know whether they were the same characters as the other cartoons; they all take place in ''a'' Marvel Universe, where ''a'' Spider-Man, Human Torch, etc. would likely exist somewhere.) You never know who'll be briefly shown watching from a rooftop, or looking up at the PillarOfLight in the distance when something ''really'' big goes down. Also, ComicBook/IronMan, ComicBook/FantasticFour, ComicBook/TheIncredibleHulk, etc. guest starred in each other's shows often enough to make the '90s Marvel cartoons a [[Franchise/DCAnimatedUniverse Diniverse]] of sorts - you can connect the dots through all of them.
135	* An arc of ''WesternAnimation/StreetSharks'' dealt with them teaming up with the ''WesternAnimation/ExtremeDinosaurs''.
136	* [[WesternAnimation/SupermanTheAnimatedSeries Superman]] had three crossovers with ''WesternAnimation/BatmanTheAnimatedSeries'', confirming the existence of the Franchise/DCAnimatedUniverse.
137	** The season two three-part episode "World's Finest," which featured characters from ''Batman'' traveling to Metropolis.
138	** The season three episode "Knight Time," in which Superman teams up with Robin (Tim Drake) to hunt down a missing Batman.
139	** The season four episode "The Demon Reborn" in which Batman and Superman team-up to fight Ra's Al Ghul.
140	*** The ''WesternAnimation/BatmanTheAnimatedSeries'' episode: "Girls' Night Out" featured guest appearances by Supergirl and Livewire from ''WesternAnimation/SupermanTheAnimatedSeries'', both of whom traveled to Gotham City and teamed up with Batgirl and Harley Quinn & Poison Ivy, respectively.
141	* The [[WesternAnimation/TeenageMutantNinjaTurtles1987 1987]], [[WesternAnimation/TeenageMutantNinjaTurtles2003 2003]], and [[ComicBook/TeenageMutantNinjaTurtlesMirage original comic book]] versions of the ''Franchise/TeenageMutantNinjaTurtles'', in ''WesternAnimation/TurtlesForever''.
142	** Also, [[ComicBook/UsagiYojimbo Miyamoto Usagi]] appeared in all three TMNT cartoon series.
143	* ''WesternAnimation/TinyToonAdventures'' was also in this same mold (considering both shows were from the same producer, Creator/StevenSpielberg). In fact, some ''WesternAnimation/{{Animaniacs}}'' characters made quick cameos in the two prime-time ''Tiny Toons'' specials in 1994.
144	** In the Tiny Toons direct-to-video movie ''How I Spent My Summer Vacation,'' Buster and Babs are saved from a fall by Franchise/{{Superman}}. The Bunnies promptly told the Man of Steel to [[BreakingTheFourthWall get his own video]].
145	** The episode "Fields of Honey" featured the forgotten ''WesternAnimation/LooneyTunes'' duo [[WesternAnimation/BoskoTheTalkInkKid Bosko and Honey]].
146	* ''WesternAnimation/TheVentureBros'' started off as a parody of ''WesternAnimation/JonnyQuest''. Eventually, characters from ''Jonny Quest'' started showing up on the show... or at least demented versions of them.
147	** They also showed demented versions of ''WesternAnimation/ScoobyDoo'' and the ''ComicBook/FantasticFour.''
148	* ''Victor & Hugo - Bunglers in Crime'': Many times, either in reference or in guest stars. Count Duckula, Igor, Nanny, Hawkeye Soames and Dr. Potson (from ''WesternAnimation/CountDuckula''), Danger Mouse, Colonel K, Baron Greenback, Nero and Stiletto (from ''WesternAnimation/DangerMouse'') and even a nod to Badger from ''Wind in the Willows''. It seems fitting, since ''Victor & Hugo'' were a spin-off from ''Count Duckula'', who in turn spun off from ''Danger Mouse''.
149	* An episode of ''WesternAnimation/TheZetaProject'' crossed over with ''WesternAnimation/BatmanBeyond'', justified in this case as the former was a spinoff of the latter. (Due to Bob Kane's contractual billing being what it is, this is also the only episode where the opening titles omit the "Created by Robert Goodman" credit - the end credits specify Kane's being behind Batman, with Goodman being behind the characters for the spinoff.)
150	* [[http://deadline.com/2015/02/cartoon-network-upfront-powerpuff-girls-adventure-time-1201376480/ "Say Uncle"]], a crossover between ''WesternAnimation/StevenUniverse'' and ''WesternAnimation/UncleGrandpa'' of all shows. it was then taken up to eleven when UG pulled out his checklist of kids to visit to reveal [[WesternAnimation/DextersLaboratory Dexter, Dee Dee]], [[WesternAnimation/ThePowerpuffGirls Bubbles, Blossom, Buttercup]], [[WesternAnimation/EdEddNEddy Ed, Edd, Eddy]], [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Billy, Mandy]], [[WesternAnimation/FostersHomeForImaginaryFriends Mac]], [[WesternAnimation/TheMarvelousMisadventuresOfFlapjack Flapjack]], [[WesternAnimation/AdventureTime Finn]], WesternAnimation/{{Clarence}}, and even [[WesternAnimation/TheLifeAndTimesOfJuniperLee Juniper Lee]] and ''WesternAnimation/SwatKats'' on the list. One can only imagine what those visits were like.
151	* Creator/CartoonNetwork's Advertising/{{CN City}} bumpers which ran during the mid 2000's had the cast of the majority of shows in that era all living together in one town. Of course, this led to many amusing interactions like [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Billy]] mistaking [[WesternAnimation/FostersHomeForImaginaryFriends Mr. Herriman]] for the Easter Bunny. This also extended to cartoons that were broadcast but not owned by the company, such as ''WesternAnimation/JusticeLeague'' and ''Franchise/{{Pokemon}}''.
152	** The 20th anniversary bumpers count as well. Many of them were like the CN City ones above like Franchise/ScoobyDoo, [[WesternAnimation/AdventureTime Jake]], [[WesternAnimation/CourageTheCowardlyDog Courage]], [[WesternAnimation/TheHuckleberryHoundShow Huckleberry Hound]], [[WesternAnimation/TheLifeAndTimesOfJuniperLee Monroe]], and [[WesternAnimation/JohnnyTest Dukey]] playing poker (What else?) before being interrupted by [[WesternAnimation/TheAmazingWorldOfGumball Gumball Watterson]].
153	* Though it ultimately ended up cancelled ([[WesternAnimation/AtlantisMilosReturn and turned into a movie]]). The planned [[RecycledTheSeries Team Atlantis]] animated series was going to have a crossover with WesternAnimation/{{Gargoyles}} where Demona got her hands on an Atlantis crystal.
154	* The ''WesternAnimation/TomAndJerry'' movie "Spy Quest" had the titular duo crossover with the cast of ''WesternAnimation/JonnyQuest''.
155	* ''WesternAnimation/StaticShock'' did a number of crossovers with ''WesternAnimation/BatmanTheAnimatedSeries,'' ''WesternAnimation/SupermanTheAnimatedSeries,'' ''WesternAnimation/BatmanBeyond,'' and ''WesternAnimation/JusticeLeague.''
156	* In a Trix cereal commercial, a Trix cereal commercial plays on TV. The Trix rabbit is wearing a trench coat. As always, the kids deny the Trix rabbit any form of sustenance. WesternAnimation/BugsBunny, watching the commercial on TV, turns off the television. It occurs to Bugs that the Trix rabbit requires a trickier disguise. Bugs calls the Trix rabbit, creating a SplitScreenPhoneCall, though Bugs steps easily into the other frame and speaks to the Trix rabbit directly, offering assistance in acquiring some Trix. The Trix rabbit immediately begins feening for some fruity Trix, describing all the fruity flavors. Bugs is perplexed as to why there is no carrot flavor, and hands the Trix rabbit a carrot, though the Trix rabbit seems further perplexed. Bugs takes some measurement with measuring tape, and whispers a plan to the Trix rabbit. In part 2, Bugs outfits the Trix Rabbit in a PaperThinDisguise intended to fool the kids into believing the Trix rabbit is really Bugs Bunny. The Trix rabbit, wearing his outfit, hides behind a tree and stalks the kids silently. He walks up to them as they are eyeing Trix cereal, and proclaims that he is Bugs Bunny. The kids say "Wow!" and ask him to sign their box of Trix. The Trix rabbit provides a signature on the box, stating, "Sure! Us rabbits love Trix." But, true to form, the Trix rabbit begins jonesin' for those Trix, and backflips out of his costume, yelling, "yippee!" As the Trix rabbit reaches for the box, the kids yet again deny the rabbit the basic right to consume food. Bugs watches the ordeal on TV, and turns off the TV before the commercial can finish. He relaxes at the pool, on a pool chair, enjoying his own box of Trix. Relaxing with a bowl of Trix cereal, he lays back on a cushion, stating, "I prefer a happy ending."
157	* ''WesternAnimation/TotalDrama'' has a few hints of being in the same universe as ''WesternAnimation/{{Sixteen}}''. The first time is in ''Total Drama Action'', when the remaining contestants try to prove they're an inseparable team by recreating the [[SugarWiki/AwesomeMusic 6teen theme song]]. The second time is in ''Total Drama World Tour'', when Lindsay mentions shopping at the Khaki Barn, one of ''6teen'''s major stores. The third time is in ''WesternAnimation/TotalDramaPresentsTheRidonculousRace'', when [[LargeHam MacArthur]] mentions [[NiceGirl Jen Masterson]], one of the main characters on ''6teen'', as a former babysitter (poor Jen). The fourth, and most notable, time is when Jude, another main character on ''6teen'' appeared alongside the ''Total Drama'' cast on ''WesternAnimation/TotalDramaRama'' as a main character.
158	* The Creator/USANetwork had an unusual crossover involving four shows that made up their Saturday morning lineup in 1996. A character called the Warrior King, voiced by Creator/MichaelDorn, chased a mystical orb through several dimensions. His story began in an episode of ''WesternAnimation/StreetFighter'', continued in an episode of the ''ComicBook/SavageDragon'' animated series and an episode of ''WesternAnimation/MortalKombatDefendersOfTheRealm'', before the storyline was concluded in an episode of ''WesternAnimation/WingCommanderAcademy.''
159	* ''WesternAnimation/UltimateSpiderMan2012'' met up with ''Series/{{Jessie}}''. It featured the Wall-Crawler meeting with animated versions of the show's primary cast on Halloween and going up against Morgan Le Fay. Based on the latter cast's outfits, the crossover is set between the timeline of the latter's season 3 episodes "The Runaway Bride of Frankenstein" and "There Goes the Bride".
160	* ''WesternAnimation/WildKratts'':
161	** The Kratt Brothers appear as bats named Chris and Martin Batt in the ''WesternAnimation/NatureCat'' episode "Wild Batts". Nature Cat also mentions that the other neighborhood bats are named [[WesternAnimation/DanielTigersNeighborhood Daniel Bat]], [[WesternAnimation/PegPlusCat Peg + Bat]], [[WesternAnimation/CuriousGeorge George the Curious Bat]], and [[WesternAnimation/TheCatInTheHatKnowsALotAboutThat The Bat in the Hat]]. PBS Cinematic Universe?
162	** The Kratts showed up in the beginning of the ''Series/OddSquad'' episode "Night Shift".
163	** Chris and Martin showed up in the ''WesternAnimation/MollyOfDenali'' episode "Cry Wolf", where they track down a missing wolf pack.

Context Crossover / WesternAnimation