* In ''WesternAnimation/XMenEvolution'', one episode features the theme song from the original ''WesternAnimation/XMen'' animated show remixed as a sort of tropical poolside jazz piece.
** Also, in the episode "Under Lock and Key", the five members of the original X-Men team from the '60s (Cyclops, Jean Grey, Beast, Angel, and Iceman) are sent on a mission together.
** ComicBook/{{Wolverine}}'s second costume was the same one he wears in the Ultimate continuity.
** In one episode, Kitty is shown hugging a purple dragon toy before bed, referring to her friend/pet Lockheed in the comics.
* ''WesternAnimation/JusticeLeague'' ''loves'' doing these. Examples include, but are not limited to:
** [[http://dcanimated.wikia.com/wiki/List_of_classic_Superman_tributes A page]] of Superman allusions on the DCAU wiki.
** In the first story arc, Franchise/{{Superman}} suggests forming a team of heroes. TheFlash responds, "What, you mean like a bunch of...WesternAnimation/SuperFriends?"
** The story arc is titled "Secret Origins," itself referencing the title of the first Super Friends episode (''Secret Origins of the Super Friends'').
** In "The Great Brain Robbery", Flash (Michael Rosenbaum) and LexLuthor (Creator/ClancyBrown) [[FreakyFridayFlip switch bodies]], but not voices -- allowing Michael to play his ''Series/{{Smallville}}'' role as Lex.
*** Also, Lex takes advantage of the situation to pull off Flash's cowl and discover his secret identity but is thwarted when he has "no idea who this is." In one SilverAge story, Heat Wave managed to unmask (Barry Allen) Flash and had much the same reaction.
** A political pundit cites a book titled ''The Innocent Seduced'' as a source proving the link between the Justice League and juvenile delinquency. This references ''Seduction of the Innocent'', the book which made many of the same claims and sparked the creation of UsefulNotes/TheComicsCode Authority. This pundit, by the way, is [[NoCelebritiesWereHarmed G. Gordon]] Godfrey, who, was a full-on agent of {{Darkseid}} in Creator/JackKirby's ''NewGods'' series (better known as "Glorious Godfrey").
** Snapper Carr, sidekick/teen mascot of the Justice League [[JusticeLeagueOfAmerica in the comics]], gets screen time as a reporter.
** The episode "Legends". That's all that needs to be said (although even those savvy to the comics may not have caught the reference to Roy Thomas in the form of "Roy Thompson").
** The same episode also features the Justice League fighting a giant robot that looks extremely similar to one of the title mecha from ''Anime/NeonGenesisEvangelion'', a popular anime series BruceTimm has drawn fan art of in the past.
** Also, "The Savage Time". The writers took the opportunity to cram as much [[WorldWarII WWII]] comics nostalgia into the three-parter as humanly possible.
*** Similarly, in another time-travel episode, John Stewart briefly turned into Hal Jordan as the timeline fluctuated.
*** There's even a Marvel Mythology Gag in there, as Superman smashes a plane and is covered with burning fuel, briefly resembling the WWII hero the Human Torch (not to be confused with the [[ComicBook/FantasticFour later model]] by that name)
*** It starts even before the setting shifts to World War II. The alternate-timeline Batman refers to the group of freedom fighters he started in the absence of the Justice League as "orphans and outsiders." In the 1980s, Batman left the Justice League to found a new team called the Outsiders. Naturally the background characters include cameos by the [[WesternAnimation/BatmanTheAnimatedSeries B:TAS]] Robins and Batgirl, and a young Cassandra Cain.
** Likewise, the episode "Ultimatum" features both the {{Hanna-Barbera}} ''WesternAnimation/SuperFriends'' characters, ''and'' a homage to the Keith Giffen-era ''JusticeLeagueOfAmerica'' via the character of Maxwell Lord.
** "A Better World" started out on paper as an episode featuring the Crime Syndicate of America, an {{evil|Counterpart}} AlternateUniverse version of the Justice League.
** The Royal Flush Gang (first incarnation) are voiced by the actors who voice the main characters in ''WesternAnimation/TeenTitans''.
*** Another ''WesternAnimation/TeenTitans'' reference in "Patriot Act," when GreenArrow calls for backup versus the Shaggy Man...and his ex-sideki-- err, ex-''partner'', Speedy shows up (completing the ''SevenSoldiers'' homage). Same voice actor, look, and general attitude as his Teen Titans counterpart.
** "Patriot Act" also has a Nazi scientist paraphrase the Golden Age descriptions of Superman's abilities when hyping up his [[SuperSoldier Captain Nazi]] project. The fact this version of said project uses SuperSerum rather than genetic alteration can be taken as another nod to Marvel.
** Also in "Patriot Act". The heroes in the parade and the two backups are the present day versions of the Seven Soldiers of Victory, a World War II era team consisting of the Star-Spangled Kid, Stripesy, Green Arrow, Speedy, the Crimson Avenger, the Shining Knight, and Vigilante.
** In a nod to her invisible plane (from which much hilarity has been mined over the years) from TheGoldenAgeOfComicBooks, when WonderWoman's flying a Javelin, she frequently has it cloaked.
** Linda Park, Flash's wife in [[TheFlash the comics continuity]], is featured in the DayInTheLimelight episode "Flash and Substance" as a fangirl busy GettingCrapPastTheRadar.
** Speaking of "Flash and Substance", the episode also featured the Flash Museum, featuring more Flash Mythology Gag moments than thought humanly possible.
** One more from "Flash and Substance" -- MarkHamill, who regularly plays The Joker in the DCAU shows, plays one of The Flash's foes, The Trickster. Essentially, he's reprising his role from ''Series/TheFlash'' live action TV show.
** In "Secret Society", the scene of the League and the Society charging towards each other is a reference to the opening of ''Challenge of the Superfriends''. Earlier, Shade jokingly refers to Grodd's Society as the "Legion of Doom".
** Flash's surreal DreamSequence in "The Brave and the Bold" when hit by Grodd's MindControl ray features him growing grotesquely overweight and [[PuppetPermutation turning into a puppet]] -- both things featured prominently on [[http://superdickery.com/index.php?view=article&catid=29%3Aconfounding-comic-covers-index&id=1117%3Athe-day-flash-weighed-1000-pounds&option=com_content&Itemid=24#content ridiculous old]] [[TheSilverAgeOfComicBooks Silver Age]] [[http://superdickery.com/index.php?view=article&catid=29%3Aconfounding-comic-covers-index&id=1125%3Aplight-of-the-puppet-flash&option=com_content&Itemid=24#content comic covers.]]
** {{Supergirl}}'s [[EvilTwin villainous clone]] is modeled after one of Supergirl's ParallelUniverse counterparts, PowerGirl, including her... [[MostCommonSuperpower "maturity."]]
** Tsukuri and Aresia were based off {{Katana}} from the Comicbook/BirdsOfPrey and [[BatmanAndTheOutsiders Outsiders]], and Fury from InfinityInc, respectively. Aresia's debut episode was even called "Fury."
** In "To Another Shore," when WonderWoman needs to switch from civilian clothes to her costume, she performs the spinning "transformation" sequence from the [[Series/WonderWoman Lynda Carter TV series]], complete with lightshow.
** In "Eclipsed," Flash suggests to (John Stewart) Green Lantern that they go on a road trip "looking for America," which (Hal Jordan) Green Lantern once did with Green Arrow. He even describes them as "Hard-Traveling Heroes," the name of the story arc.
** In "Maid of Honor," Princess Audrey refers to Wonder Woman as having "feet of clay," to which Wonder Woman responds "You have no idea." Wonder Woman was born when her mother sculpted a baby out of clay, and the gods brought her to life.
** The last scene of the series shows the Justice League running down a flight of stairs in groups; each group has a common bond, such as being part of the infamous "Satellite era" or being JackKirby creations.
* In the ''WesternAnimation/LegionOfSuperHeroes'' episode "Phantoms", Brainiac 5 refers to historical data on Superman's origin being lost in "the great crisis". This could be a reference to any number of things in the comics, but most likely, ''CrisisOnInfiniteEarths''.
** This is mentioned again by Brainiac 5 in "Message in a Bottle" as an excuse for not knowing who was "The Terror" that shrunk Kandor and put it in a bottle. This references how in TheSilverAgeOfComicBooks it was Brainiac, but PostCrisis it was a wizard named Tolos. (In this case, he's lying, badly, as it's very obviously Brainiac.)
** "In the Beginning" showcases the original Legion founders and gives us a chance in {{flashback}} to see key team members in their "Disco Duds" (a.k.a. their classic [[TheSilverAgeOfComicBooks Silver Age]] costumes plus epic TheSeventies styling)
** In "Phantoms," Drax's pets are modified giant versions of [[WesternAnimation/SupermanTheAnimatedSeries Bizarro Krypto]].
** In "Brain Drain," [[TalkativeLoon deranged, babbling]] Brainiac 5 either wants his hot cocoa or his comics-pet-space-monkey Koko.
** He also starts listing off the umpteen colors of [[TheSilverAgeOfComicBooks Silver Age]] Kryptonite.
** The mining robots on Zuun are duplicates of [[WesternAnimation/SupermanTheAnimatedSeries the Wayne/Lex robot]].
** When Ultra Boy (not going by that name) makes his only appearance in "Champions," Phantom Girl calls him cute. The two are an item in the comics.
** A Kandorian dog and cat getting superpowers? Hello, WesternAnimation/{{Krypto|TheSuperdog}} and Streaky.
** A Superman Robot in the Fortress of Solitude has its human shell heavily damaged, making it resemble the villain Cyborg Superman.
** Dream Girl is said to have been the con artist "Madame Mysterious" in {{backstory}}; apparently a nod to her former comics alias Miss Terious.
* ''SupermanTheAnimatedSeries''; where to begin...
** "Mxyzpixilated" is extra-extraordinarily meta: Superman mispronounces Mr. Mxyzptlk's name exactly the way that the ''WesternAnimation/SuperFriends'' production team decided to pronounce it. Mr. Mxyzptlk himself all but crosses the FourthWall, turning Jimmy [[http://superdickery.com/index.php?view=article&catid=29%3Aconfounding-comic-covers-index&id=1029%3Athe-giant-turtle-man&option=com_content&Itemid=24#content into a turtle,]] making [[http://en.wikipedia.org/wiki/Streaky_the_Supercat the Kents' cat flight-capable,]] and starring in his own private newspaper comic strip by "Siegel and Shuster," the creators of Superman.
** "Little Big Head Man" shows Bizarro's created a model of a square planet, namely [[SdrawkcabName Htrae]], Bizarro Earth from TheSilverAgeOfComicBooks. Then Mr. Mxyzptlk's girlfriend Ms. Gsptlsnz summons up a real-life ''ComicBook/ActionComics'' issue advertising Mr. Mxyzptlk on the cover.
* ''WesternAnimation/TeenTitans'', while not as mythos-heavy as the DCAU (being separate from it), has its share of Mythology Gags as well.
** In "Apprentice", Slade forces Robin to become his apprentice, and then states that he'd eventually become like a father to him. Robin's response? "I already have a father," while the camera pans up to [[Franchise/{{Batman}} a group of bats]] flying away, complete with music that sounds awfully like the B:TAS opening.
** One of Beast Boy's imagine spots has him jumping out of an old comic cover while a banner proclaims him the "new sensation of 1963." 1963 being the year Beast Boy first appeared.
*** Even better, Beast Boy was dressed up as Robin at the time. The composition of the shot (Beast-Boy-as-Robin bursting through a screen held by Starfire/Batman) is an homage to the cover of Detective Comics #38, Robin's debut. Only ''he'' was the new sensation of 1940.
*** The big fight scene for the episode takes place around a large neon sign, toppling an A and a Y, until the final wide angle shows what's left to read 'W_ _NE Enterprises'.
** When a never-revealed mystery person [[TheRealRemingtonSteele takes up Robin's old Red X costume]], Beast Boy speculates on who it could be--his board-o'-theories includes Jason Todd, an ex-[[LegacyCharacter Robin]] who'd similarly appropriated the identity Red Hood in the comics.
*** Another suspect is "Robin's Long-Lost Brother". Robin has an older brother who died along with his parents in ''Film/BatmanForever''. The brother shown on the board also visually resembles Scott Menville, Robin's voice actor.
** In one episode they meet a magical kid from another dimension who is a huge fan of Robin. His name is [[SdrawkcabName Nosyarg Kcid]]. They decide to call him Larry instead.
*** Larry is an {{Expy}} of Bat-Mite, a similar Batman character now removed from comic book continuity...maybe.
** In the episode where Mumbo captures the Titans and turns all but Beast Boy into animals, Starfire is turned into a cat. The original comic established that Starfire's people evolved from cats.
** In "Lightspeed", one of these pops up as a FreezeFrameBonus - when Mammoth comes out of a store, the candy bar he's carrying is a Lightspeed Energy Bar, the same brand that Flash shilled for in an episode of ''Justice League''. Fittingly enough, the bar is stolen out of Mammoth's hand by Kid Flash, who's being voiced by ''Justice League'' Flash's voice actor Michael Rosenbaum.
** One DC Nation short has the Titans, thanks to Mad Mod's time machine (Built to resemble a [[Series/DoctorWho British phone booth]]) has them transported to various time periods. When they reach the 80s, they're dressed like their comic counterparts.
*** The 90s part also features a few shout-outs to the "New Titans" era (1991-1996): Raven as a red-skinned demon, Cyborg with bulkier armor, Beast Boy with a mullet, and Starfire wearing the armor that Mirage used while impersonating her.
* ''WesternAnimation/TeenageMutantNinjaTurtles2003'' likes to do this, particularly in regards to the older cartoon. Among the most prominent:
** In the episode "Secret Origins" April O'Neil poses as a TV reporter to infiltrate a building, wearing a [[IconicOutfit very familiar yellow jumpsuit]]; when she tries to "interview" the soldier supervising the blockade around the Utrom building (it's complicated), she explains that she's from "Channel 9 News *broken tag on jumpsuit flips down* er, Channel ''6'' News". Later, once the smoke clears, Donatello says April would make a good reporter, to which she replied "In another lifetime, maybe." These are all references to the previous ''Ninja Turtles'' cartoon, where April was a reporter for Channel 6 News.
** The van is kept in a warehouse on "the corner of Eastman and Laird".
** ''TurtlesForever'', full stop! Not only do we have a crossover between the 2003 and 80s series, but a view of the multiverse shows pretty much every other continuity ever.
** In the same episode, as the alien Utroms escape the under-siege T.C.R.I. building, one makes a complaint, to which the other says "Oh, shut up, Krang."
*** Note that both Krang ''and the Utroms were based on aliens that originally appeared in the original comic book series by Eastman and Laird.
** A season four episode features anthropomorphic rhino [[UsagiYojimbo Gennosuke]], exploring NYC when he becomes taken with a muscular punk's outfit. One "shopping" trip later, he is seen wearing the outfit: a tight yellow wifebeater, cargo pants, and an ammo belt strapped across his gut--the outfit anthropomorphic rhino Rocksteady wore in the original TMNT series. To complete the look, Casey Jones slaps a helmet on him as he leads the rhino away.
** Leatherhead's lair is taken from the turtles' second lair in the movie series.
* ''WesternAnimation/TeenageMutantNinjaTurtles2012'''s opening is essentially the original ''TeenageMutantNinjaTurtles1987'' with rap.
** In one episode, Michelangelo mentions that he wants to get a tattoo of his own face. The design shown? The face of his character model from the [[TeenageMutantNinjaTurtles1987 original 80's cartoon]].
* ''WesternAnimation/SouthParkBiggerLongerAndUncut'' actually has one for an early ''WesternAnimation/SouthPark'' short. The "[[WhatWouldXDo What Would Brian Boitano Do?]]" musical is a reference to "Jesus vs. Santa", the second short the series was based on, where the boys asks this of Jesus and can't think up an answer.
** An episode of the show had Tweek being afraid to put a carrot on a snowman's face because it might come alive. In a reference to the ''first'' short, "Jesus Vs. Frosty"...
-->'''Stan''': Tweek, when that has that ever happened, [[http://www.youtube.com/watch?v=ELxeSadruMI except for that one time]]?
** The other short, "Jesus vs. Santa", is the one the boys are working on in "A Very Crappy Christmas".
** In the episode "The Passion of the Jew", when Stan asks for a refund over the phone, he says that he'll get his money back like he did for ''BASEketball'', a movie that Matt Stone and Trey Parker both starred in.
*** Also counts as SelfDeprecation, as almost immediately afterwards, he and Kenny both agree that is was an terrible movie.
* In ''WesternAnimation/ScoobyDooOnZombieIsland'', there's a scene where Fred is going through his clothes while dressing... and comes across a bright orange ascot. "Nah", he decides. Animated versions of Fred haven't touched the ascot since the late 1990s.
** TheMovie of ''Franchise/ScoobyDoo'' was likewise loaded with them.
** An episode of ''WesternAnimation/WhatsNewScoobyDoo'' has a flashback to young Velma's birthday party to explain why she is afraid of clowns. In the flashback, the whole gang is animated in a style very similar to ''WesternAnimation/APupNamedScoobyDoo''.
** At least ''The Mystery Begins'' redoes the intro to ''Scooby Doo: Where Are You!'', and ''Scooby Doo and the Monster of Mexico'' is completely filled with references to the old show, including much of the soundtrack being redoings of the background music from that show.
*** The Halloween episode of ''WesternAnimation/WhatsNewScoobyDoo'' had shout-outs to everything from ''WesternAnimation/ScoobyDooAndTheReluctantWerewolf'' to ''WesternAnimation/HongKongPhooey'', and ends with what's most likely a reference to ''Scooby Doo and the Witch's Ghost''.
---->'''Velma:''' An ancient ghost coming back after a hundred years to get revenge? Yeah right, who'd believe that?
** ''WesternAnimation/ScoobyDooAndTheCyberChase'' has the whole last section as a hurricane of references to the series, such as the outdated clothing, the monsters being fake, and obviously the returning monsters from the original series.
** In ''WesternAnimation/ScoobyDooAndTheLegendOfTheVampire'', the movie starts with the original opening [-[[RecycledInSpace ON A CRUISE SHIP]]-], complete with a random flock of bats using the exact same sound effect as that original opening.
** The live-action TV movies (''The Mystery Begins'' and ''Curse of the Lake Monster'') were similarly full of in-jokes for longtime fans.
** ''WesternAnimation/ScoobyDooMysteryIncorporated'' has a number of these. One episode has a brief appearance from a statue of [[TheScrappy Scrappy-Doo]], followed by Fred stating they had agreed never to discuss him again. Another episode featured appearances by a number of other Hanna-Barbera characters, such as WesternAnimation/CaptainCavemanAndTheTeenAngels, and the cast of ''WesternAnimation/SpeedBuggy''.
*** Beyond that, there have been cameos by other Hanna-Barbera characters. [[WesternAnimation/ThePebblesAndBammBammShow Pebbles and Bamm-Bamm]] appear as beach-goers in one episode, while [[WesternAnimation/TheAmazingChanAndTheChanClan Suzie Chan]] makes several non-speaking cameos as a student at the Mystery Inc. gang's high school.
*** The villain Alice May looks almost exactly like Gwen Stacy from ''ComicBook/{{Spider-Man}}'', right down to her clothing and color palette. She's even shown wearing a spider pattern dress during her capture.
*** Near the end of "Howl of the Fright Hound", some animal control officers are wheeling away a bear wearing [[WesternAnimation/YogiBear a familiar hat and necktie]].
** Velma dresses up as Cleopatra in the 1969 episode ''Scooby Doo and a Mummy Too'' as she, Shaggy and Scooby hide from the mummy. [[spoiler:She dresses up as Cleopatra again in ''WesternAnimation/ScoobyDooInWheresMyMummy'' as part of the ScoobyDooHoax she helps stage.]]
* ''Franchise/{{Transformers}}'' loves these.
** In the Film/{{Transformers}} film series:
*** Bumblebee first appears next to a yellow Volkswagon Beetle, his ''[[TransformersGeneration1 G1]]'' altmode.
*** Optimus Prime says "One shall stand, one shall fall", lifted from similar circumstances in the 1986 animated movie. In fact, ''several'' of Prime's catch phrases from the G1 series were incorporated, also including "Freedom is the right of all sentient beings."
*** A soundclip from OrsonWelles' ''Radio/TheWarOfTheWorlds'' plays on Bumblebee's radio -- Welles provided the original voice of Unicron.
*** Optimus borrows the main gimmick of ''[[spoiler:Anime/TransformersArmada]]'' for his battle against The Fallen.
*** Megatron goes "[[WesternAnimation/BeastWars Yessss.]]" twice in ''Revenge of the Fallen''.
** In ''WesternAnimation/BeastWars'' and ''Beast Machines'':
*** Rattrap at one point asks "Who died and made you Prime", a reference to the animated movie in which Optimus Prime dies and Hot Rod becomes Rodimus Prime.
*** Rattrap also mentions his "great aunt Arcee", the ''G1'' [[TheChick pink chick]].
*** The conversation about the ''Ark'' has a sly reference to [[TechnologyMarchesOn changing]] [[MerchandiseDriven toy technology]]:
---->'''Rattrap:''' Aw, man! This ship wasn't built, it was poured!\\
'''Optimus Primal:''' Die-cast construction. It's a lost art.
*** The Maximals' mantra "I am transformed" is the same as one occasionally used by the Autobot Headmasters in ''TransformersHeadmasters''.
*** When Primal is carrying the original Optimus's spark, there's hardly a line he says that Prime didn't say first in G-1.
*** In another episode, when Rattrap is flying on Optimus' back, he complains that if he wanted to fly he'd have chosen a bat as an altmode. Optimus Primal's very first toy transformed into a bat.
** Now-defunct Dreamwave Productions's comic run had a heavily damaged or defeated Megatron say "I still function..." at least three times.
** In ''WesternAnimation/TransformersAnimated'':
*** The series actually begins with footage from the original 80s show (presented in the episode as history tapes)
*** In the first episode, when the Autobots are first attacked, Bumblebee says Rattrap's CatchPhrase "We're all gonna die, aren't we?"
*** He later once called Optimus "Big Bot", like Cheetor did for Primal.
*** When Bumblebee notes how weird it is that Prowl's vehicle form is a motorcycle without a rider, he suddenly makes a hologram rider like the one from the live-action movie (AKA Mustache Man).
*** The new version of Soundwave has eyes that change between the yellow of the original toy to the red of the G1 cartoon, and was first seen in a box resembling his G1 alt mode, ''and'' at one point he develops a shoulder cannon, ''and'' the fragment of him left at the end is based on the MP3 player Soundwave.
*** There's a double gag in the second season's "Garbage In, Garbage Out" with "I am Wreck-Gar! I ''dare'' to be stupid!": it referenced not only Wreck-Gar's ''Animated'' voice actor, [[Music/WeirdAlYankovic Weird Al]] (who sang "Dare To Be Stupid"), but also the appearance of the original Wreck-Gar in the 80s animated movie (where the same song was played). In the same episode, Wreck-Gar throws the motorcycle altmode of his G1 namesake at Bumblebee. And, yet again in the same episode, he mistakes one of Lugnut's weapons for "the universal greeting", reaching for it as he says "Bah weep graaagnah wheep ni ni bong", another reference to his introduction in the G1 movie. At this point, it might be fair to just call the entire character a giant mythology gag.
*** In the same episode, Ratchet gives a ride to a married couple named Spike and Carly, who greatly resemble the late ''G1''/''Headmasters'' characters of the same names. They originally appeared in the background of the first episode, along with their son Daniel who's made a few recurrences himself.
*** Sari has a robot dog named Sparkplug, evidently named after the ''G1'' character (Spike's father). A construction worker who strongly resembles him appears in a few episodes.
*** For Halloween, Sari dresses up as G1 Optimus Prime. Well, okay, she dressed up as ''Animated'' Optimus, and ended up looking exactly like G1 Prime.
*** When Megatron is trying to create a new body, he says he needs a substance called 'Destronium'; this is probably a reference to the Japanese G1 continuity, in which the Decepticons were called Destrons (and paralleling Cybertronium, as the Autobots were called ''Cybertrons'' in Japanese).
*** Meltdown's organic monsters are based on Decepticon Pretenders from ''TransformersSuperGodMasterforce''.
*** When the Constructicons are brought to life, they appear in the vicinity of a crane that resembles the alt mode of Hook, a ''G1'' Constructicon. This is a whole season after they pulled a fast one by earlier showing a group of automated construction vehicles/mining equipment in G1 Constructicon colors, which are never seen again (Though Mixmaster and Scrapper do eventually get G1-style paint jobs after officially becoming Decepticons).
*** In the last episode of the first season, the Autobots' ship is partially buried in a volcano, similar to what happened to the ''Ark'' at the start of ''G1''.
*** Swindle mentions in passing that he has had dealings with the Vok. The Vok were incredibly powerful aliens that were the secondary antagonists in ''WesternAnimation/BeastWars''. Later, in the Season Three episode 'Decepticon Air', he mentions having dealt with the Quintessons, from the original movie and later seasons of the G1 cartoon.
*** And then there's a human villain called Headmaster, with a suit of PoweredArmour that works in a very similar manner to the Headmaster suits from the aborted fourth series of ''TransformersGeneration1''.
*** The [[SendInTheClones Starscream clone]] briefly encountered by Prowl and Lockdown on the moon is brown-coloured in a manner reminiscent of the Starscream seen in ''Anime/TransformersArmada''.
*** Starscream's clones (except [[OppositeSexClone the female one]]) all have color schemes copied from the other G1 Seekers -- characters who were essentially {{Palette Swap}}s of Starscream or became similar F-15 jets.
---->The Sycophant: Sunstorm\\
The Coward: Skywarp\\
The Liar: Ramjet\\
The Egomaniac: Thundercracker\\
The Female: Japanese Transformer Overlord (according to WordOfGod); also resembles Generation 2 Ramjet.
**** The female clone's name is officially Slipstream, I believe.
*** Susan Blu, voice of the original Arcee, is now voice director for ''Animated'', and got to briefly reprise her role in a flashback.
*** The Decepticon team introduced in season three is named "Team Chaar", after the planet the Decepticons moved to after finally being expelled from Cybertron after TheMovie in G1. (Aptly enough, the Autobot team that fights Team Chaar is headed by Rodimus Prime, who [[RetCon didn't exist]] until after the movie.) It's unknown if ''Animated'' has its own planet Chaar, however.
*** The ending of ''Predacons Rising'' has Blackarachnia encountering [[WesternAnimation/BeastWars a rat, a cheetah, a gorilla and a rhino]]. She responds to this with "gimme a break", which could be yet ''another'' reference: that exact phrase was used in ''Anime/TransformersEnergon''. Over. ''[[MostAnnoyingSound And over]].''
*** In the same episode, [[spoiler: Waspinator is seen pulling himself back together while commenting "Waspinator has planzzz...", both trademarks of the oft-exploded original Waspinator in Beast Wars.]] However, while the original did both these things in a cute or humorous manner, ''Animated'' made them seem a lot creepier.
*** In ''Human Error Part Two'', Scrapper has a Dinobot pet, and named him Snarl. When Sari asks, Scrapper answers, "Well, I was going to name him Slag, but I think he took it as an insult." Probably a double callback, as the original character was named Slag, and this was both a curse in Cybertronian and, in the UK, a lesser-known word for "slut," meaning the toy was not sold there much and necessitating a name change.
*** And now as of "Decepticon Air," Ramjet (Liarscream) and Sunstorm (Sycoscream) have shiny new helmets courtesy of Swindle -- helmets that just so happen to match the heads of their G1 predecessors.
*** In "Endgame, Part 1", the Omega Clones resemble the Dark Guardians, the giant robots that the Quintessons used in Generation 1 to keep the ancestors of the Cybertronians in line. Fitting, seeing as how G1 Omega Supreme was a surviving Dark Guardian reprogrammed and made sentient as an Autobot.
** In ''Anime/TransformersEnergon''
*** The mysterious alien Alpha Q is based the [[TransformersGeneration1 G1]] Quintessons, although he only has three faces (G1 Quintessons had five). In fact, in the comic, his full name is Alpha Quintesson.
** ''TransformersShatteredGlass'' can get downright labyrinthine. For instance, in ''Shattered Expectations'', Dirge shows up in a body based on ''Games of Deception'' Dirge, in ''BeastWarsII'' Thrust's colors, in a pose mimicking Ramjet in ''TransformersGeneration2'', bursting from a Pretender Shell based on ''Descent into Evil'' Dirge, in Chromia's colors, in a pose mimicking Octopunch from ''Generation 2.'' And this is ONE CHARACTER ON A SPLASH PAGE.
** In ''TransformersPrime''
*** Arcee admires Bumblebee's new paint scheme after they go into hiding: black with yellow highlights instead of yellow with black highlights. She comments that she couldn't do that, since she would be mostly [[PinkIsForSissies pink]], which was her G1 scheme.
*** Soundwave is TheSilentBob, able to carry on a complete conversation despite never speaking or even having a face. He can speak, but he only does so once, a straight call back to G1: "Soundwave: superior. Autobots: inferior."
* ''WesternAnimation/TheSimpsons'' episode "Lisa's Sax": "Tracey Ullman was entertaining America with songs, sketches, and crudely drawn filler material." That filler being the early ''Simpsons'' shorts.
** In "Treehouse of Horror XIII", Homer makes clones of himself. One of them resembles his old design from "The Tracey Ullman Show", with the same voice and catchphrase (the 'Frosty Chocolate Milkshakes' line).
** Another episode has the family recreating their family photos, including one that says "Happy 1987." Bart, Homer, and Lisa look like their Tracy Ullman counterparts before shaking their heads and reverting back to normal.
** In another episode, the family is watching FOX's latest round of animated programming. Homer comments that animated shows are great "because they don't have to pay the actors squat!" Flanders then walks by, speaking with a different voice. At the time, the Simpsons' cast had been engaged in very bitter salary disputes with senior management.
** As in many animated shows, the characters have frequently made reference to their [[LimitedWardrobe unchanging wardrobes]].
** In one episode Homer says to Bart, "Where's your blue shirt?" and Bart responds, "I don't have a blue shirt" referencing the blue shirt Bart tends to wear in knockoff merchandise.
** In "Itchy and Scratchy the Movie", Lisa tells Bart that the eponymous movie had cameos by Creator/DustinHoffman and Music/MichaelJackson: "They didn't use their real names, but you could tell it was them!" Both appeared in classic episodes of ''The Simpsons'' under pseudonyms.
** In "Das Bus" Bart tries to entertain his classmates by singing "Do the Bartman" (a novelty hit single his character had in the early 1990s). Ralph's reaction: "That is so 1991."
** Another episode "Sweets and Sour Marge" has Chief Wiggum attempting to burn Butterfinger snacks, but as he puts it "Even the fire won't take them". Bart Simpson was the mascot for this brand and made TV commercials to endorse the product.
* In ''WesternAnimation/CodeLyoko'' Season 4, the large room in Sector 5 that houses the ''Skidbladnir'' is called "Garage Skid" by Odd. This is a reference to ''Garage Kids'', a short film by the creators of the show that was a test pilot for the series.
* On ''WesternAnimation/SpongeBobSquarePants'', Krabs refers to [=SpongeBob=] as, "Spongeboy, me Bob!" rather than "[=SpongeBob=], me boy!" in the episode "Squeaky Boots". On a later episode, "Frankendoodle", the titular doodle is first named Doodleboy, then later is called [=DoodleBob=]. These are references to [=SpongeBob's=] original name, Spongeboy, which was changed for legal reasons.
* ''WesternAnimation/TheBatman'' features a bunch of references to classic Batman comics.
** The future-based episode "Artifacts" has a scene where an aged Batman steps out of his Batmobile to fight Mr. Freeze. Freeze greets him with the words: "Literature/TheDarkKnightReturns!"
** Alfred also resembles his counterpart from the story, being a lot older and needing to use a cane to walk around.
** There's also a tank-like Batmobile ala ''TDKR''.
** In the same episode, Robin and Batgirl assume their present-day comic identities of {{Nightwing}} and Oracle respectively.
** [[CanonForeigner Ellen Yin]] seemed to be based off on Ellen Yindel from ''TheDarkKnightReturns'' and is hinted in "Artifacts" to have replaced Gordon as Commissioner like Yindel did in ''TDKR''.
** In the same episode during some speculation, Robin and Batgirl are referred to respectively as [[ComicBook/KingdomCome Red Robin]] and Batwoman.
** Mr. Freeze suffered a similar, though less severe, deterioration as his ''WesternAnimation/BatmanTheAnimatedSeries'' incarnation and hence has replaced his legs with robotic spider legs.
** The Bat-Bot resembles the Bat-Knights from ''Comicbook/KingdomCome''.
** The design for Commissioner Gordon is very reminiscent of how Tim Sale drew him in ''ComicBook/TheLongHalloween''.
** The season one finale gives the Joker some very similar lines to those in ''ComicBook/TheKillingJoke''.
** ''WesternAnimation/TheBatmanVsDracula'' was probably somewhat inspired by ''Batman and Dracula: Red Rain''.
** In the episode "Team Penguin", the other members of Cobblepot's LegionOfDoom keep suggesting different names for the group. Ragdoll comes up with "Villains United", the title of the book that introduced the SecretSix.
** When the opening sequence changes to showcase Robin, he appears bursting through a circular a screen. As mentioned in the ''WesternAnimation/TeenTitans'' section, this is a reference to the cover and title page of Detective Comics #38, the 1940 issue he debuted in.
* A number of these show up in ''WesternAnimation/YoungJustice'' as well:
** The pilot episode starts with Robin, Kid Flash and Aqualad as the main characters. The original Robin, Kid Flash, and Aqualad were the founding members of the ComicBook/TeenTitans, and their adventures together were chronicled in ''ComicBook/TheBraveAndTheBold''.
** "Schooled" contains an homage to the school bus rescue scene from the original ''Film/{{Superman}}'' movie.
** The same episode features Bruce Wayne accessing his Batsuit via a hidden switch in a Shakespeare bust, referencing the old Creator/AdamWest ''Series/{{Batman}}'' show.
** The Justice League's official logo (seen on membership cards and TV programs) is the title card from ''WesternAnimation/JusticeLeague''.
** In "Misplaced", [[{{Shazam}} Captain Marvel]] utters the phrase "A world without grownups!" ''JLA: World Without Grown-Ups'' was the mini-series that first introduced ComicBook/YoungJustice in the comics.
** The opening scene of "Insecurity" has Black Spider in a parallel of the opening shot of ''WesternAnimation/TheSpectacularSpiderMan'', which was the previous series of show runner GregWeisman. As a CastingGag, the same actor who voiced Spider-Man in the show was brought back to voice Black Spider in his brief appearance.
** The captive Roy Harper first seen in "Auld Acquaintance" is missing an arm. In the comics, Roy had one of his arms chopped off during the controversial ''CryForJustice'' mini-series.
** "Bloodlines" has the Flash telling a young mother to seek shelter at "Fox and Gardner". Gardner Fox was the name of a prolific comic book writer who created (among many other things) the original Flash and Justice League.
** The Leaguers that disappeared for sixteen hours during the events of "Auld Acquaintance" are as follows: Batman, Superman, Wonder Woman, Hawkgirl, Martian Manhunter, and Green Lantern (John Stewart). They were six of the original team members in ''WesternAnimation/JusticeLeague,'' and also made up the Justice Lords in that series.
** The HalloweenEpisode "Secrets" has Mal Duncan in Superboy's original costume from the comics, complete with sunglasses, which he calls "Superman, done right". Conner doesn't seem impressed.
** In the same episode, Secret gets her name from a magic shop called [[HorrorHost Abel's]] [[Comicbook/TheSandman House of Secrets]].
** In the episode "Endgame," BlackLightning offers to be Static's mentor. Fitting, given that Soul Power (an aged superhero Static looked up to) from ''StaticShock'' was an {{Expy}} of Black Lightning
*** It could also be a nod to an old issue of ''TheBraveAndTheBold'' where Static teamed up with Black Lightning.
* The writers of ''WesternAnimation/AvengersEarthsMightiestHeroes'' seem to love these:
** Iron Man jokingly mentions needing an electrical socket or a pair of batteries to recharge his armor at several points. While this would seem ridiculously outdated today, he did indeed use those to recharge his suit back in the SilverAge.
** Black Widow is stated to have "Champion-class" security clearance in the ComicBook/{{SHIELD}} organization. In the comics, Black Widow was part of a team of superheroes known as the Champions.
** Hawkeye sarcastically states that the team should move to the West Coast at one point. In the comics, there was indeed a team known as the [[WestCoastTeam West Coast Avengers]], lead by none other than Hawkeye himself.
** Hawkeye and Black Widow are introduced as SHIELD black-ops agents rather than reformed supervillains like in the original ''Avengers'' comics. This concept was introduced in ''TheUltimates'', a modern day AlternateUniverse story.
** Additionally, the Skrull impostor disguised as CaptainAmerica wears the same costume worn by the UltimateUniverse incarnation of Cap.
** Hawkeye tries to piss off Chemistro in one episode by pretending to mistake him for Paste Pot Pete and the Hypno-Hustle, two outdated D-list Marvel villains.
** The show uses J.A.R.V.I.S., Tony Stark's AI system from the original ''Film/IronMan'' movie.
** When trying to rebuke claims that [[Comicbook/TheIncredibleHulk Hulk]] and RedHulk are not one and the same, Maria Hill mentions that she heard the Hulk "used to be gray". While his green form is the most iconic and well known iteration, the Hulk was indeed colored gray in his earliest SilverAge appearances, and he's returned to that form several times since.
** When Cassie Lang, the daughter of Scott "Ant-Man" Lang, is kidnapped, Hank Pym shoots her with Pym Particles, shrinking her down to a tiny size. After being rescued by her father and restored to her normal size, Cassie asks her father if they can "do that again." In the comics, Cassie would eventually become the size-changing Stature of the [[YoungAvengers Young Avengers]]
* ''WesternAnimation/BatmanTheAnimatedSeries''
** One episode features one huge mythology gag. It's a bunch of kids telling their RashomonStyle stories about the Batman, one being 60's campy, one being Miller's Dark Knight, and at the crowning moment of funny they stumble upon a very feminine boy stroking a feather boa saying, "I love Batman, that rubber costume, the car that can drive up walls," and another kid remarks something along the lines of, "oh please give me a break Joel," an [[TakeThat/WesternAnimation obvious reference]] to JoelSchumacher and his Batman movies.
** And another one was all-but an homage to the 1960s "campy" Batman starring Creator/AdamWest... who, appropriately, voiced himself as "The Gray Ghost" and his actor.
** The episode [[Recap/BatmanTheAnimatedSeriesE25TheClockKing "The Clock King"]] has one. First, let's admit that The ClockKing is a FailOSuckyname. So Fugate, who is NotWearingTights, who averts all the tropes under the EvilMakeover and who [[TheyLookJustLikeEveryoneElse looks just like everyone else]] [[ComicBookMoviesDontUseCodenames never uses that codename]]. However, it's the episode title, so they work this:
-->'''Batman:''' [[StockPhrases I'm here to clean your clock]], Fugate.\\
'''Temple Fugate:''' Don't count on it, Batman. When it comes to ''clocks'', I am ''king.'' [[GratuitousFrench En garde!]]
* ''WesternAnimation/KimPossible'' alluded to how the show was going to end in the episode "Bad Boy", as Kim and Ron are watching their favorite prime-time soap, "Agony County", and complaining about the status of one couple. A few episodes later, "So the Drama" ended with [[OfficialCouple Kim and Ron]] getting together, and was supposed to be the GrandFinale, until the producers decided to [[PostScriptSeason bring the show back]].
-->'''Ron:''' Oh please, are they still teasing that Charity and Dannie are gonna get together?
-->'''Kim:''' Like that's ever gonna happen. It would end the series.
* ''WesternAnimation/HeyArnold!'' features a few nods to Craig Bartlett's original ''Arnold'' comics. For example, the ending of the episode "24 Hours to Live" is based on the strip "[[http://images2.wikia.nocookie.net/__cb20090624121327/heyarnold/images/d/db/Arnold_Narrowly_Avoids_a_Thrashing.jpg Arnold Narrowly Avoids a Thrashing]]".
* The opening scene of one episode of ''WesternAnimation/PrincessGwenevereAndTheJewelRiders'' had a guest character lamenting [[NothingExcitingEverHappensHere how boring her place of residence was and how much she was hoping for something exciting to happen]]. The speech itself was almost a line-by-line re-creation from an episode of series creator Robert Mandell's previous show, ''WesternAnimation/AdventuresOfTheGalaxyRangers'' -- and [[HeyItsThatVoice Corrine Orr]] voiced the characters both times.
* In the ''WesternAnimation/BatmanBeyond'' episode "Out of the Past", Ra's Al Ghul attempts to use the [[FountainOfYouth Lazarus Pit]] to restore Bruce's youth before [[BodySurf putting his mind in his body.]] He mentions that he will take over Bruce' empire by claiming to be the long-lost son of Bruce and Talia, which is a reference to ''Batman: Son of the Demon'' where Bruce and Talia conceive a child (who, since the end of the series, was reintroduced to the comics as Damian Wayne).
** "Heroes" had three superheroes using the name "the Terrific Trio", which was originally used in the campy 60's series, which was the Dynamic Duo, plus Batgirl.
** This rather obvious one occurs in "The Call" when Terry is fleeing from Superman using the flying Batmobile:
--> '''Terry:''' What's the top speed on this thing?
--> '''Bruce:''' Mach 3.
--> '''Batman:''' Is that faster than a speeding bullet?
* In the [[DistantFinale series finale]] of ''AsToldByGinger'', [[spoiler:she shows all of her friends the book she's written about her life. The picture of her on the book is the original character design from the unaired pilot.]]
* ''WesternAnimation/DangerMouse'': In "Penfold Transformed", Greenback dresses Stiletto in a Penfold costume to counter Dr. Crumhorn's Penfold robot (planted with DM to replace the kidnapped ''real'' Penfold). Stiletto makes a reference to Greenback's ill-fated Penfold duplicator (or magnetic molecular molder) from the earlier episode "Tiptoe Through the Penfolds."
* In an episode of ''CountDuckula'', the count is wearing a nightshirt with Danger Mouse's "DM" logo. Duckula first appeared on ''Danger Mouse'' as an antagonist.
* In their early days, Creator/HannaBarbera would make outright stars of characters either referenced earlier or appearing earlier. {{Quick-Draw McGraw}}'s name was first seen on a note on a door in a 1957 episode of ''WesternAnimation/TheRuffAndReddyShow'' (the studio's first series), Snagglepuss was an antagonist on the Quick Draw show, Ricochet Rabbit (from ''The Magilla Gorilla Show'') first appeared as an antagonist on ''Touchè Turtle'', and the [[WackyRaces Ant Hill Mob]] was first seen as a gang on insect bikers in an episode of Atom Ant.
* The first episode of ''WesternAnimation/RoughnecksStarshipTroopersChronicles'' {{inverted|Trope}} Raczak's "Do you wanna live forever?!" catchphrase from the film, having him instead solemnly order his men: "Live forever, Apes."
* ''TheProblemSolverz'' references its Creator/AdultSwim pilot ''NeonKnome'' in some episodes. Kevin, the magic cup, can be seen in Horace's room, and the pictures on the wall are screenshots from the pilot. Roba also has a collection of Narrator dolls, and the giant Rollerblade appears in a few backgrounds. In "Hamburger Cavez", Roba unrolls his long sleeping bag the same way he did in ''NeonKnome''.
* In the ''WesternAnimation/{{Ultimate Spider-Man}}'' episode "Beetle Mania", the other heroes each have an ImagineSpot of how they could defeat the Beetle single-handedly. In each, he's wearing a different version of the green-and-purple armour from the 616-universe comics (except Nova, who for some reason imagines him as an actual beetle). When the Beetle actually appears, he's wearing his metallic Ultimate Universe armour.
** In the pilot episode, a ComicBook/{{SHIELD}} agent can be seen testing out webbed glider wings that look exactly like those worn by SpiderWoman.
** In "Back in Black", Doop from ''[[{{X-Force}} X-Statix]]'' makes a cameo in Peter's fantasy sequence.
** "Flight of the Iron Spider" contains a reference to the garage training sequence from the first ''Film/IronMan'' movie.
** The watch Harry Osborn uses to contain his Symbiote is based on the one Peter used to contain his nanite costume in ''SpiderManUnlimited''.
** [[AffirmativeActionLegacy Miles Morales]], the current Comicbook/UltimateSpiderMan, makes a cameo appearance as one of Flash's understudies in the musical episode.
*** The episode which revolves around a [[SpiderManTurnOffTheDark terrible Spider-Man musical that Agent Coulson and Mary Jane write up]].
** One episode has CaptainAmerica delcare that there may be a few future [[Comicbook/TheAvengers Avengers]] among Spider-Man's team of teen heroes. Spider-Man, [[LukeCageHeroForHire Luke Cage]], and [[ComicBook/ImmortalIronFist Iron Fist]] all ended up becoming members of the Comicbook/NewAvengers in the comics.
**** In "Avenging Spider-Man", when [[spoiler:Loki puts his mind in Spidey's body]], Doc Ock is very impressed and says [[Comicbook/SuperiorSpiderMan he'll have to make a note of that]].
* In the pilot episode of ''WesternAnimation/AvengersAssemble'', TheFalcon's suit is referred to as "Project Redwing". Redwing is the name of Sam's pet falcon in the comics.
** The trailers for the series heavily mimic Comicbook/IronMan's infamous "Let's do a headcount" speech from [[Film/TheAvengers the movie]], complete with the "We have a Hulk" line.
** The second episode has the team fighting the Space Phantoms. A Space Phantom was the lead villain of the second issue of the original ''Avengers'' comic book.
** The episode "One Little Thing" has Pym particles scattered across the tower, altering the size of things they strike. Hulk gets shrunk (a reference to the classic ''Hulk'' story "The Brute Who Shouted Love at the Heart of the Atom") and Hawkeye gets grown (a reference to his time in the comics using Pym particles as Goliath).
* In the Halloween level of the ''ComicStrip/{{Garfield}}'' game ''Garfield's Defense Force'', Lanolin's costume resembles her Wicked Witch of the Wool outfit from the ''WesternAnimation/GarfieldAndFriends'' episode "The Ugly Duckling", minus the ruby slippers.
** In the sequel to that game, Wade is wearing Roy's police hat from "Wanted: Wade".
* On ''DastardlyAndMuttleyInTheirFlyingMachines'', Dick Dastardly's WackyRaces car, the Mean Machine, was seen in numerous episodes of the ''Magnificent Muttley'' segments.
* ''WesternAnimation/GoofTroop'' has several mythology gags.
** Peg and Pistol, Pete's wife and daughter, were both named after previous versions of Pete: Peg-Leg Pete (evil pirate) and Pistol Pete (evil cowboy).
** In the episode "Meanwhile, Back at the Ramp", Max is referred to several times as "Goofy Jr." Goofy Jr. (or George Geef Jr.) was a prototype for the character who eventually became Max.
** "Wrecks, Lies, and Videotape" features [[MickeysChristmasCarol a parody of A Christmas Carol with Goofy as Jacob Marley.]]
** "Hot Air" features a WhoIsDriving joke about Goofy, where he honestly answers he is while obviously not, just like in the famous short, "Mickey's Trailer."
** The [[InteractiveNarrator How-To Narrator]] who appears several times when Goofy is in focus, much like in Goofy's classic how-to shorts.
** In "Close Encounters of the Weird Mime," Goofy's mime instructor holds up cue cards with pictures. When it comes to "duck", the picture is of WesternAnimation/DonaldDuck.
** In ''WesternAnimation/AGoofyMovie'', in addition to Max having a WesternAnimation/MickeyMouse phone and Mickey and Donald making brief cameos, when Goofy says he's taking a trip with his "best buddy", Max's first thought is that it's Donald.
** ''An Extremely Goofy Movie'' features Old Stuffed Bear, who first appeared in the Goofy sketch of ''WesternAnimation/MickeysOnceUponAChristmas''.
* On ''MickeyMouseClubhouse'', the Toon Plane is the same airplane from ''PlaneCrazy''.
* In ''WesternAnimation/GodzillaTheSeries'', the H.E.A.T. team went to investigate a string of disappearances in Japan. Naturally, [[Film/{{Godzilla1998}} Godzilla]] [[LegacyCharacter Jr.]] followed them there. After swimming across the Pacific Ocean, a Japanese girl in a passenger plane spotted him arriving at Japan.
-->'''Girl''': Mommy look! It's Gojira!
-->'''Mother''': Don't be ridiculous; what would Gojira be doing in Japan?
* In the ''WesternAnimation/HulkAndTheAgentsOfSMASH'' episode "The Venom Within", which crosses over with ''WesternAnimation/UltimateSpiderMan'', A-Bomb speculates that Venom is [[Comicbook/SpiderMan an alien creature]] which [[Film/SpiderMan3 came to Earth on a meteorite]]. In this continuity, he's completely wrong.
* In the ''WesternAnimation/PacManAndTheGhostlyAdventures'' episode "Pac to the Future", Pac's dad wears a fedora just like Pac-Man did in the HannaBarbera [[WesternAnimation/PacMan cartoon]]. His mom even looks a bit like Ms. Pac-Man in the same show.
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