Crossover Punchline / Western Animation

• The Grim Adventures of Billy & Mandy:
  • In the episode "My Fair Mandy", Mandy enters a child beauty pageant in order to show up her arch-rival Mindy, and is coached that she would win if she would simply smile. With great effort, Mandy begins to smile, and reality shatters, placing Billy, Mandy and Grim in Townsville as distorted Powerpuff Girls with Irwin as Mojo Jojo. They even got Tom Kane to play Professor Utonium and Tom Kenny to play the PPG Narrator!
  • There are several cameos from Hector Con Carne, with which they originally shared a Three Shorts program with (Grim & Evil). On one of these occasions, annoyed by the situation, Hector states that "I'm not even on this stupid show anymore!"
  • The short "Dream Date" ended by revealing it to be a Dream Within a Dream within a dream within a dream within Wilt's head.
    Wilt: I'm sorry, but what a weird dream. I don't even know any of those people!
  • In The Movie Billy and Mandy's Big Boogey Adventure, when they ask who's going to be the Grim Reaper now that Grim has been removed from the position, Numbuh Three shows up in a portal, wielding the scythe and thanking Boogey for the new job opportunity. The two shows did eventually crossover as The Grim Adventures of the Kids Next Door.
  • Speaking of the crossover episode, when Billy wore his dad's "lucky" pants, which kicked off the entire episode and nearly destroyed all civilization as a result, the KND weren't even the first call he made. No, he called Eddy first, who then directed him to the Kids Next Door upon learning he's broke. And then when they show up at his door, he exclaims, "Hey, you're not The Powerpuff Girls!" The episode as a whole has at least one character from every series produced for Cartoon Network up to that point appear as cameos, and The Stinger features fake posters a number of joke crossovers (Ed, Edd n Mandy, Evil Camp Carne, Class of Numbuh 3000, My Gym Partner's A Mandark, and Samurai Mac).
  • "Billy and Mandy Moon the Moon" has two endings, one for the Cross Through event "CN Invaded" and one for regular reruns. The first ends with the alien leader attempting to learn Earthling secrets by drinking brain juice harvested from five typical Earthlings. Drinking the brain juice instead turns him into a babbling dum-dum, afterwards it is revealed that the brain juice was harvested from moronic characters Fred Fredburger, Ed from Ed, Edd n Eddy, Skip from Camp Lazlo, Cheese from Foster's Home for Imaginary Friends and Slips Python from My Gym Partner's a Monkey. The second sees Sector V smell all the cheese that now composes most of the moon as a result of the episode's events from the KND Moonbase and react in confusion.
• In the Codename: Kids Next Door episode "Operation: G.R.A.D.U.A.T.E.", when hit by the Animalization Ray, the Delightful Children from Down the Lane are turned into sheep with similar appearances to the title character from Sheep in the Big City, with Bruce bearing the strongest resemblance to Sheep.
• One of the final shots in Over the Garden Wall, that being a bird-eye view of Wirt and Greg's hometown, implies that the brothers live (or lived) in the town of Aberdale, the setting of fellow Cartoon Network production Clarence.
• Sealab 2021: The ending of the episode "Murphy Murph and the Feng Shui Bunch" revealed that the events of the episode were part of a video game being played by Meatwad and Master Shake of Aqua Teen Hunger Force. ("You hang windchimes for an hour, and then you fight? I don't get it.")
• Family Guy:
  • The ending of the episode "Da Boom" has it be All Just a Dream by Pam Ewing of Dallas, who finds her husband Bobby in the shower, in a parody of the famous reveal.
  • In the fourth season, the main plot of one episode is a parody of Poltergeist, which has Peter replicating the scene where a character pulls the skin off his face while looking in the mirror. When it all comes off, he has turned into Hank Hill:
    Peter/Hank: Hehehehehehe. Propane.
  • On the fifth season finale "Meet the Quagmires", after Peter apparently fixes every problem from his screwing with the timeline, Roger Smith from American Dad! suddenly appears.
    Roger: Who ate all the pecan sandies?
  • In "Lois Kills Stewie" (which was just a simulation) Stewie breaks into the CIA and is confronted by Bullock and Stan, the latter of which Stewie mistakenly calls "Joe", lampshading how Stan looks like Joe Swanson with black hair.
  • During a Police Squad! spoof you get a "Jaws" First-Person Perspective of Stewie running down Homer Simpson as he parks in the garage.
    Peter: [looks down at Homer] Who the hell is that?
  • There's an episode that has a miniature Marge appear at the bottom of the screen and at first, it seems like one of Fox's advertisements... until a miniature Quagmire attempts to rape her.
  • In the episode "The Splendid Source", Peter and his friends are going around the country questioning people about where they heard a particular joke. At one point we see them asking Bender from Futurama.
  • In "Excellence in Broadcasting" the normally far left-leaning Brian finds himself being swayed to the right-wing views of guest star Rush Limbaugh. We switch to ultra-conservative Stan Smith watching the episode saying "Good. Good for Brian."
  • A cold opening for one episode crosses over with American Dad!, which turns out to be a Dream Within a Dream of Hank Hill.
    Hank: I always wake up before I find out if they can understand the baby!
  • At the end of the Spies Like Us parody episode, a rocket wipes out Cleveland's new home, sending Cleveland in his bathtub crashing to the ground, a Family Guy running joke. Cue Tim the Bear to walk out a second later.
    Tim: I don't get it!
  • In the episode "The Simpsons Guy" (itself a crossover with The Simpsons), the judge in the second half of the episode is Fred Flintstone.
  • Later in the same episode, when Kang and Kodos are watching Homer and Peter fight each other, Roger suddenly appears on their spaceship... right before Peter and Homer crash into it.
    • Earlier, Peter sets up a Cutaway Gag with him and Homer fighting in a plane where a third pilot is revealed to be Bob Belcher. This turns out to just be the setup to a joke about The Cleveland Show.
  • In "Ratings Guy", just after Peter arrives at the Television Producers Guild to make up for ruining the state of television, Homer Simpson (complete with Dan Castellaneta voicing him) runs in with the same problem Peter has, prompting Peter to gloat about having one over him.
  • In "Killer Queen" after finding a boy attending fat camp with them dead Peter wonders who would kill a camper, at which point Jason Voorhees says not to look at him, as he was just there to drop off his son.
    • Barry Robinson also appeared in this episode but had no real lines.
  • The ending of "Trans-Fat" features the cast of Bob's Burgers while Peter mocks their show.
  • Really due to the nature of the show, there are too many here to list them all.
• Duckman: At the end of "Haunted Society Plumbers", the Bedsheet Ghost that scares off Duckman and Cornfed turns out to be Homer Simpson, looking to score free donuts.
• The Simpsons has several examples:
  • The cameo appearance of the King of the Hill cast in the episode "Bart Star": after Springfield's pee-wee football team defeats Arlen's pee-wee team, Hank Hill turns to his family and says "We drove 2000 miles for this?", and if you look closely, Bill, Dale and Boomhauer can be seen in the stands as well.
  • As might the throwaway gag in "Sideshow Bob Roberts" of the Archie Comics gang throwing Homer out of a van and warning him to "stay out of Riverdale". He is later seen reading an Archie comic and muttering under his breath about "stuck-up Riverdale punks".
    • A later episode, "How Lisa Got Her Marge Back", had the Riverdale gang pulling a prank on Bart before mourning Archie (a reference to Archie's death in Life With Archie: The Married Life).
  • In the "Treehouse Of Horror XIII" segment "Send In The Clones", Homer makes multiple clones of himself. Peter Griffin can be seen amongst the clones as a Take That! to the popular opinion that Family Guy is a ripoff of The Simpsons.
  • Similarly, in "The Italian Bob", the police have photos of several criminals wanted in Italy. Two of them are Peter Griffin (for plagiarism) and Stan Smith (for plagiarism of plagiarism).
  • In "Future-Drama", Bender from Futurama appears next to Bart and Homer after they travel through a time tunnel. Homer quickly proceeds to tell him to "get lost" and chucks him out of a moving vehicle.
    • He appears again later in the Simpsons basement as a callback to the actual crossover Simpsorama they now use him as a safe.
    • He appears again during "Homer Live" holding up a sign saying "Bring back Futurama (again)".
    • Philip J. Fry also appears briefly in a couch gag.
  • Another Couch Gag involved Rick and Morty crashing into the Simpsons household, killing the family in the process. Rick sends Morty off to get the family cloned, while Rick loots their house and freezes Ned Flanders.
  • Another couch gag has the Simpsons running in only to find The Flintstones in their place.
  • The couch gag for the season 28 premiere, "Monty Burns' Fleeing Circus", is a reanimation of the Adventure Time opening, complete with parody lyrics and Continuity Porn.
  • In the "Treehouse Of Horror V" segment "Time And Punishment", wherein Homer travels through time, Kang and Kodos turn into Mr. Peabody and Sherman from Rocky and Bullwinkle after saying that the Puny Earthling was unprepared for the effects of time travel. Doubles as a Brick Joke because they were seen near the beginning of the short correcting Homer saying he was the first non-Brazilian person to travel through time.
  • In "Hurricane Neddy", which is set in an insane asylum, we see a number of the inmates... including Jay Sherman.
    Jay Sherman: It stinks! It stinks! It stinks! It stinks!
    Asylum Attendendant: Yes, Mr Sherman. Everything stinks.
    • He returns, with every other character Jon Lovitz has ever played in the show, to greet Artie Ziff at Moe's. Artie calls them weirdos.
  • In "Fear of Flying", Homer is forced to find another bar after getting kicked out of Moe's and at one point finds himself at Cheers.
  • The Couch Gag for "My Way or the Highway to Heaven" has Homer ending up in the intro to Bob's Burgers, where he suffers all the disasters that strike the restaurant (including a pest infestation and a fire) in real-time while the Belchers wonder what he's doing in their restaurant.
  • "Missionary: Impossible" ends with Betty White leading a telethon for Fox, showing Dana Scully and Fox Mulder, Thurgood Stubbs, Dylan McKay, Hank Hill, Bender, and Fox president Rupert Murdoch among the people taking pledges.
• One episode of Chowder has a character waiting for a blind date. In walks Sara Bellum from The Powerpuff Girls — but she's not his date.
• Robot Chicken:
  • One sketch parodying Spider-Man featured a teenage boy getting bitten by a radioactive deer and becoming "Kid Venison". At the end of the sketch he is hit by a car. After this we see a sketch parodying Terminator which ends with Sarah Connor hitting Kid Venison with her car.
  • The Stinger for the Bitch Pudding Special has Nick Fury appear, presumably to offer her a place in The Avengers. She then proceeds to car-jack him.
• American Dad!:
  • An episode features Stan name his top ten favorite fictional dogs. The #1 spot belongs to Brian from Family Guy who appears and doesn't know who Stan is.
    Stan: STOP PRETENDING I DON'T EXIST!
  • In the episode "The Unbrave One", Francine takes several online pregnancy tests from a shady gynecologist named Dr. Vadgers, most of which involve naked close-ups. The end of the episode shows Dr. Vadgers's computer screen, then reveal him to be Quagmire.
  • After the family's house is washed away in a hurricane it arrives next door to Cleveland's. At which point Peter Griffin appears and the three are armed with guns at each other. Then Stan accidentally shoots Francine:
    Peter: Heh-heh-heh-heh-heh-heh. Classic American Dad.
• An episode of Time Squad had Buck and Larry abandon Otto after a fight and try out several replacement orphans... including Dexter, who protests he's not an orphan.
• House of Mouse had one in one of its episodes. With Pepper Ann of all shows! But considering it's a Massive Multiplayer Crossover, nine-tenths of the jokes are going to be this.
  Lydia: Don't touch the villain, dear.
• Foster's Home for Imaginary Friends:
  • The pilot also has an imaginary friend who is Mojo Jojo; according to Wilt this is pretty common since "some kids aren't that creative, so they just copy what they see on TV."
  • A quick joke in one episode shows Mandy returning an imaginary friend, saying it was too happy. To make it funnier, said scene is just in Bloo's imagination.
• Animaniacs would occasionally cross the characters of its various shorts for a quick gag. A couple times, the Warners would be at a loss for how to deal with their current problem and eventually resort to recruiting another character: they took care of Elmyra by heading for Mindy and Buttons' neighborhood and letting her fill Buttons' usual Badly Battered Babysitter duties; and for a lady with Karmic Protection as a genuine (if overbearingly) Nice Girl they hired Slappy Squirrel, who had no such scruples. In yet another short, it was revealed that the dragon they just beat was actually a machine controlled by Pinky and the Brain.
• In Ultimate Spider-Man, the Living Laser is thrown into a dimensional rift, and comes out in the world of The Super Hero Squad Show, getting promptly beaten up by SHS-Thor.
• An episode of Road Rovers had the villain being incarcerated in an insane asylum for megalomaniacs, along with several other villains from previous episodes. The inmates end up yelling at each other from their cells, arguing about about who is going to rule the world, until at the end a familiar voice is heard...
  The Brain: No, it is I who shall rule the world! YES!
  (the closing theme of Pinky and the Brain is heard as the episode fades to credits)
• In an episode of Ben 10: Omniverse about a store that shifted between dimensions, when Ben first enters the store it's populated by alien versions of Cow and Chicken.
• One episode of Oggy and the Cockroaches has Oggy and the cockroaches falling into acid and turned into slime, and they enter a washing machine, which turns them into clothing, animals, then aliens... except that the "aliens" are clearly the titular characters of Space Goofs (both of which were produced by France's Gaumont studio).
• Looney Tunes: Not counting "all-star" outings, there have been several instances of characters appearing in another character's starring roles.
  • Near the end of the 1942 spot-gag short Crazy Cruise, a group of rabbits are seen defending themselves from a Japanese vulture by donning air raid helmets and shooting a cannon at it. One of the rabbits, whose face has been obscured from the viewer, turns out to be Bugs Bunny, who tells the audience "Thumbs up, doc!" before the Iris Out closes on his ears, which form a "V" for victory.
  • In the 1943 short Porky Pig's Feat, Porky and Daffy are being held prisoner in their hotel room for not paying and wonder what Bugs would do in a situation like this. They decide call him up and, after he offers ideas they already tried and failed at, the door opens to reveal Bugs chained up in the room next to theirs ("Aah, don't work, do they?").
  • In the 1954 short '"Dog Pounded'', Sylvester tries to retrieve Tweety from a dog pound by disguising himself as a skunk to scare the dogs away. It nearly works until he suddenly becomes the object of Pepe Le Pew's affection.
  • In the 1954 short No Barking, an alley cat tries to catch a bird from a tree, only for a dog to yap loudly give him a Jump Scare that sends up flying up. The bird in the nest is revealed to be Tweety, who says "I tawt I taw a putty tat". He reappears at the end, watching the cat sent flying again and grasping an airborne jet, saying "I did, I did taw a putty tat!" (Note: This was Tweety's only appearance in a Chuck Jones cartoon, having previously been exclusive to those made by Bob Clampett and Friz Freleng.)
  • The 1955 short Sahara Hare, in which Bugs winds up in the Sahara Desert while digging his way to Miami Beach, ends with an appearance by Daffy Duck, who is also going to Miami.
  • The 1959 short Apes of Wrath, in which a drunken stork delivers Bugs to a gorilla couple, ends with said stork giving Bugs his own "baby": Daffy!
  • In the 1964 short False Hare, a wolf and his nephew disguise themselves as rabbits to lure Bugs into a trap disguised as a "rabbit club". After several failed attempts at catching him, the wolf gives up and says he's starting a "rooster club" and Foghorn Leghorn immediately appears to join.
  • In the 2014 CGI short Flash in the Pain, Wile E. Coyote tries to catch the Road Runner by using a teleportation belt. When the belt malfunctions, Wile E. suddenly finds himself in Tweety and Sylvester's domain.
  • Let's not forget the famous ending to Duck Amuck, where the animator pestering Daffy turns out to be Bugs Bunny. Or its lesser known sequel, Rabbit Rampage, where Bugs is tormented by an animator who turns out to be Elmer Fudd.
• An extremely subtle example comes from Rick and Morty and Gravity Falls. In "Close Rick-counters of the Rick Kind", Rick opens up various portals to throw off the alternate Ricks pursuing him. A pad, pencil and coffee mug randomly drop out of one portal. In the Gravity Falls episode "Society of the Blind Eye" when Grunkle Stan is fiddling with the portal, those exact items get sucked in. The coffee mug even has a question mark on it in both shows.
• Future-Worm!'s "Finale" episode has Danny and Future-Worm riding the Time Deer and briefly teleporting into the universes of other Disney XD shows: Star vs. the Forces of Evil, Pickle and Peanut, Wander over Yonder, and Gravity Falls. In the case of the latter, it's plausible as an off-screen moment at the end of "Dungeons, Dungeons, and More Dungeons".
• In the Freakazoid! episode "Quantum Freak", Freakazoid "prevents World War II"^note which had actually been ongoing for two years in the rest of the world by preventing the Japanese assault on Pearl Harbor, then goes back to the present time to see what changes it brought. Similar to the episode's beginning, Air Force One is in peril and its pilot bailed, only this time the president is The Brain, and the staffer trying to fly the plane is now Pinky.
  • Another episode featured Wakko appearing along with the Brain. They all argue over which of their cartoons is Steven Spielberg's favorite. They go to Spielberg himself and ask him to which he simply says, "Who are you people?".
• The George Pal Puppetoon "Jasper Goes Hunting" has Jasper and Scarecrow encountering an ink-and-paint Bugs Bunny, who is ushered in the scene with an ersatz rendition of the Merrie Melodies theme. Bugs soon realizes he's in the wrong picture and dives back into his hole.
• The Dexter's Laboratory episode "Dad Is Disturbed" had Mom interrupting Dad's golf game by talking on the phone with "Betty". Dad gets her to stop by going to the other end, revealing that Mom was talking with a modern version of Betty Rubble from The Flintstones. At the episode's end, he goes back to the same house to watch the game with Barney.
• Futurama:
  • One episode had Fry, Leela and Bender go into the sewers to rescue Nibbler, when Leela pulls up a manhole cover. On the manhole cover was a picture of The PJs as well at the show's title. They returned the favor in the episode "Cliffhangin' With Mr. Super" by having a shot of a milk carton with a "missing persons" alerts on the side. The missing person? Philip Fry, who by that time was cooling his heels in cryo-freeze.
  • A later episode had Bender running into Finn the Human and Jake the Dog and responding to the latter's "What time is it?" with "Time for you to shut up!"
• The crossover between Uncle Grandpa and Steven Universe ends with Uncle Grandpa reading a piece of paper listing characters from current and past Cartoon Network shows- plus, of all shows, the SWAT Kats.
• The Uncle Grandpa episode "Pizza Eve" has a segment in which Uncle Grandpa is giving out "Grampies", and many characters from currently-airing and past Cartoon Network shows are attending. As one might expect when Uncle Grandpa is the host, he sweeps all the awards (including the "best Steven Universe episode" award), which is likely a Take That! to the Kids Choice Awards over on Nickelodeon and how they tend to favor Nicktoons over all other shows.
• An episode of The Powerpuff Girls had the girls battling an evil Imaginary Friend; when their efforts prove fruitless, they realize they need their own imaginary friend. Bubbles starts to suggest the Koosalagoopagoop from Dexter's Laboratory, only for Buttercup to shoot her down by saying "Not that Koos jerk!"
• An episode of Archer had the title character take on the persona of Bob Belcher. The other Belcher family members appear, but only Linda has dialogue.
• An episode of The Flintstones featured Fred and Wilma having a picnic. Their basket is stolen by none other than Yogi Bear.
  • Another Hanna-Barbera instance had Yogi Bear cameoing in an Augie Doggie cartoon.
• Occurs in the Season 5 finale of Ninjago. When Lloyd and Morrow have their battle, they wind up through several parallel realms, one of which being Chima.
• The We Bare Bears episode "Charlie's Halloween Thing 2" features a segment where Charlie turns himself into a human via a magical carnival wishing machine to be able to leave the woods, only to end up flinging himself through multiple strange realities trying to turn back into a cryptid later, including one where Panda, Grizzly, and Ice Bear are Finn, Jake, and Ice King respectively (complete with a Role Reprise from Tom Kenny).
  Ice King/Bear: Ice King in the wrong show.
• The Wander over Yonder episode "The Cartoon" ends on Lord Dominator switching TV channels from the titular cartoon attempt by Lord Hater to "The Mystery Kids' Mysteries", an amalgamation of The Jetsons and Scooby-Doo, Where Are You! starring Captain Ersatzes of the cast from Gravity Falls, complete with their voice actors.
  Alien Dog/Soos: Ruff ruff! Ruff, I'm a dog, dudes!
• In The Cleveland Show episode "Hot Cocoa Bang Bang", we see Comic Book Guy make a cameo appearance.
  "Worst. Cameo. Ever."
• The Casagrandes: In "Croaked", Carl is told on Dia de los Muertos that he has to spread marigold petals to form a path for their ancestors from the "land of the dead", leading him to venture outside the apartment to make a long path to this "land". At the end, when he finally uses up all the petals, he finds himself in front of the Loud residence.
• Naked Mole Rat Gets Dressed: The Rock Special ends with the revelation that the clothes the mole rats discovered came from a truck of doll clothes that was driven by the pigeon from Mo Willem's Pigeon Series.
• Garfield and Friends:
  • "Attack of the Mutant Guppies" ends with the titular Mutant Guppies fleeing into the sewers and being swept to the river when Garfield tries to eat them. In the following U.S. Acres Quickie, the Mutant Guppies pop out of the well where Orson collects water and Wade makes a wish, scaring the pig and the duck out of their wits.
  • The U.S. Acres segment "Thing In The Box" ends with the titular object turning out to be the Garfield character Nermal, who was sent to the farm because Garfield lacked enough stamps to send him to Abu Dhabi. The gang decides to send him back to Garfield.

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