* In one episode of ''This Is America, Charlie Brown'', the ''ComicStrip/{{Peanuts}}'' gang visit the Smithsonian Institution. Among other things, Charlie Brown and Lucy discover the lunar and command modules from Apollo 10 (nicknamed "Snoopy" and "Charlie Brown," respectively), and a ''Peanuts'' Sunday strip.
** For that matter, the caps that the astronauts wore under their helmets were referred to as "Snoopy Caps" for their resemblance to the aforementioned animated pup. No doubt Snoopy would enjoy it.
** In another episode of the series, it is declared that Vince Guaraldi named the piece that would be permanently affiliated with the Peanuts characters through the specials "Linus and Lucy" "by coincidence."
* ''WesternAnimation/JackieChanAdventures'' episode "And He Does His Own Stunts" has Jackie and company going to Hollywood. Of course, the actor Creator/JackieChan doesn't exist and this is confirmed by people asking "Who's Jackie Chan?" Furthermore, once Jackie is found by a studio and HilarityEnsues, a hot-shot director claims that there will never be a Jackie Chan in Hollywood.
* In the ''WesternAnimation/{{Futurama}}'' episode "A Head in the Polls," Leela, Fry, and Bender visit the Head Museum, where the [[BrainInAJar preserved, living heads]] of various famous people are kept. The head of Katey Sagal (Leela's voice actor) is briefly shown in the TV stars section.
** Matt Groening is there, too.
** So's Creator/FrankWelker.
** In "Silence of the Clamps" the crew finds a robot who claims that his name is Creator/BillyWest. Fry calls it a "stupid, made-up name".
** In "Lrrreconcilable Ndndifferences", a 3010 SDCC panel with Matt Groening previewing "Futurella" set in the 40th century, until immediately cancelled by FOX.
** In "The Honking," Calculon reveals that he is almost a thousand years old, and has had many different identities during his lifetime. "I was all of history's great acting robots: Acting Unit 0.8, Thespo-mat, David Duchovny!" However, in the very first episode of the series, Duchovny's preserved head is on display in the Head Museum.
* In the final arc of ''WesternAnimation/{{Spider-Man The Animated Series}}'', Spidey visits several alternate universes each with their own Spider-Man . In one of those, Spider-Man doesn't exist -- but the comics and films do, and its "Spider-Man" is an unnamed actor who plays him. Spidey then meets StanLee and talks to him until Madame Webb arrives to take Spidey back. When he sees Webb, Lee remarks "Who is that exotic woman?". Madame Webb was voiced by Joan Lee, Stan Lee's wife.
* In one ''WesternAnimation/DarkwingDuck'' episode, Darkwing tries to sell a screenplay about himself, but the studio rejects him. He threatens: "I think Creator/{{Disney}} will be more forthcoming!"
** To clarify, Darkwing was actually trying to sell the script of a licensed comic book about himself, as he decided to personally write the script after seeing the initial treatment negatively portraying him as a coward. However, to get him back, the head of the company refuses to publish the comic, resulting in said Disney line. Interestingly enough, at the time the episode aired Disney actually did have their own temporary comic company, and one of the titles they published was a mini-series that adapted the show's 2-part pilot.
* In the ''WesternAnimation/SouthPark'' episode "Passion of the Jew," Stan and Kenny want to get their money back from Creator/MelGibson just as they did from ''Film/BASEketball'', starring [[SelfDeprecation Matt Stone and Trey Parker]].
* The ''WesternAnimation/TinyToonAdventures'' episode "Buster And Babs Go Hawaiian" had a brief visual gag involving RobinWilliams as Literature/PeterPan in ''Film/{{Hook}}''. The very next episode ("Henny Youngman Day") featured Robin's FunnyAnimal [[NoCelebritiesWereHarmed counterpart]], Robin Killems. Not that big a paradox, though, considering [[RuleOfFunny the nature of the show]].
* In ''WesternAnimation/WhatsNewScoobyDoo'', [[Music/{{NSYNC}} JC Chasez]] hatches a plot to frame Mystery Inc by hiring some movie extras to impersonate them (he impersonated Scooby). When Mystery Inc discover this, Daphne is disappointed that she was played by an extra, saying 'What, was Creator/SarahMichelleGellar busy?'
** The impersonators of the gang were caricatures of their voice artists--Frank Welker, Mindy Cohn, Grey Delisle, and Casey Kasem.
* An ''WesternAnimation/{{Animaniacs}}'' spoof of ''Disney/BeautyAndTheBeast'' cast the Tasmanian Devil as Beast. In a gag similar to the Kareem Abdul-Jabbar scene in ''Film/{{Airplane}}'', the Warners recognize him and ask him to do "that thing he does," besides Beast vehemently insisting that "me not Taz."
* ''WesternAnimation/TheSimpsons'':
** A hair salon in one episode is named "[[Creator/HarryShearer Hairy Shearer's.]]"
** The famous season 4 Monorail episode was written by Creator/ConanOBrien. In season 5 Bart appears on ''Late Night with Conan O'Brien''.
** The end of the episode "Bart the Murderer" features a sensationalistic made-for-TV movie retelling the episode's events. In it, Fat Tony is said to be played by Joe Mantegna, who provides the voice for the Fat Tony character in the show.
*** In ''WesternAnimation/TheCritic'', Jay happens to be a fan of Jon Lovitz (who happens to provide the voice of Jay).
** Creator/DannyElfman's jaunty "Simpsons" theme has been heard as diegetic (in-universe) background music on the show. Hilariously, when Simpson family members hear the music, they don't realize it's about them!
** Matt Groening is known in The Simpsons as the creator of Futurama. Truly parodoxical since The Simpsons is a fictional show in Futurama's universe.
** Richard Dean Anderson guest stars in ''Kiss Kiss, Bang Bangalore'' as the actor starring in ''Series/StargateSG1''. In that series, Anderson's character - Jack O'Neill - is a fan of ''The Simpsons''.
** In "Bart vs. Thanksgiving" a Bart Simpson parade float appears on TV just as Homer looks away.
** Another episode has Homer getting barred from Moe's Tavern and having to find a new bar. At one point he wanders into ''Series/{{Cheers}}'', the same bar containing the same characters from the show. One of the the characters shown (though not in a speaking role) is Frasier Crane, played on ''Cheers'' by Kelsey Grammer, who also plays Sideshow Bob on ''The Simpsons'' (this would also seem to indicate that [[WhereTheHellIsSpringfield Springfield is somewhere near Boston]]([[SeparateSimpsonsGeographyThing though probably not]])).
** Both RickyGervais and SteveBuscemi have appeared twice on the show - once as themselves and different episodes playing separate InkSuitActor characters.
* In one episode of ''WesternAnimation/MenInBlack: The Animated Series'', the worms write a [[Film/MenInBlack movie treatment for MiB]] which gets produced, starring Creator/WillSmith and TommyLeeJones... and the CGI version of the worms who look more like the Franchise/TeenageMutantNinjaTurtles than their actual selves. J complains that Will Smith looks nothing like himself.
--> '''K:''' *sighs* We're going to have to neuralize all of Hollywood. AGAIN.
--> '''J:''' So THAT'S why they keep making the same movies over and over!
* ''Film/{{Ghostbusters}}'' is a fictionalization of real events in the world of ''WesternAnimation/TheRealGhostbusters''.
--> '''Winston:''' Murray, Ackroyd and Ramis? Isn't that a law firm?
* Winked at in ''ComicStrip/TheBoondocks'' episode "Or Die Trying", which starts off with a trailer for [[ShowWithinAShow Soul Plane 2: The Blackjacking]]. Among the numerous celebrities noted to star in it is John Witherspoon, Robert's voice actor.
** Additionally, John Witherspoon actually ''plays Robert'' in an in-series music video, "Eff Granddad." Robert's comment: "That's the dude from Film/{{Friday}}!" Robert [[ActorAllusion also mentions Friday]] many other times throughout the series, once referring to it as his favorite movie.
* In ''WesternAnimation/FamilyGuyPresentsLaughItUpFuzzball'', Darth Vader (Stewie Griffin) and the Emperor (Mr. Pewterschmidt) try to goad Luke Skywalker (Chris Griffin) into joining the Dark Side of the Force by mocking Creator/SethGreen, who is Chris Griffin's real-life voice actor. A double example, because Luke Skywalker shouldn't be aware of the existence of Chris Griffin ''or'' Seth Green!
** Not to mention Mr. Pewterschmidt "playing" the roles of Emperor Palpatine and Uncle Owen, making a fictional character paradox. It's just a shame there weren't any lampshades hung.
** Of course, at the end of the first two specials Peter argues that no one watches ''WesternAnimation/RobotChicken'' (created by/starring Seth Green), which Chris defends. The second time, Peter even brings up the bomb movie ''Film/WithoutAPaddle'' (starring Seth Green). At the end of third one, Meg, Lois, and Chris all agree that Creator/SethMacFarlane is a douchebag, which Peter, Brian, and Stewie (all three voiced by [=MacFarlane=]) take issue with.
* Subverted for a throwaway joke in ''WesternAnimation/EarthwormJim''. When Professor Monkey-For-A-Head's monkey gains control of their shared body, it takes the opportunity to watch the aforementioned show.
* In an episode of ''WesternAnimation/SabrinaTheAnimatedSeries'', Sabrina ponders "Who needs Melissa Joan Hart's autograph?" Melissa Joan Hart plays both of the aunts in the animated series, and she also played the title character in the earlier live-action series of ''Series/SabrinaTheTeenageWitch''.
* In a brief gag for the FairlyOddParents NonSerialMovie "Channel Chasers", Butch Hartmann (the creator of the series) appears in the credits for "Adolescent Genetically Modified Karate Cows".
* Parodied in ''PhineasAndFerb'' when they make a movie to make Candace famous. Through some careful editing, they make Candace look like Ashley Tisdale, who is Candace's voice actor.
* ''The Grim Adventures of the KND'' had the Kids Next Door being in the same universe as Billy and Mandy, but an episode of ''TheGrimAdventuresOfBillyAndMandy'' had Grim watching ''CodenameKidsNextDoor'' on TV.
** To be fair, ''Billy & Mandy'' has NoFourthWall.
* The [[RockyAndBullwinkle Fractured Fairy Tale]] "Sleeping Beauty" had a Prince Charming that was a caricature of Walt Disney. He used the Sleeping Beauty mythos to create an amusement park around it.
* ABC nearly balked at the BeanyAndCecil cartoon in 1962 because they thought Dishonest John looked too much like Walt Disney.
* Played for laughs on ''WesternAnimation/AmericanDad''. When the CIA develops what is essentially a holodeck, Stan and his coworkers liken it to ''Series/StarTrekTheNextGeneration'', but [[Creator/PatrickStewart Bullock]] doesn't get the reference. He then remarks "Some of us spent the late 80's and early 90's getting laid."
* A weird AnimatedActors example; in the ''WesternAnimation/DuckDodgers'' episode ""Talent Show A-Go-Go", Dodgers (who is credited in the opening credits as being played by Daffy Duck) steals Tom Jones's voice. In the past, Tom Jones gets Dodgers's voice, and complains he sounds like Daffy Duck.