Top 15 Halloween Episodes from the Animated Shows That Defined Our…

Gravity Falls – “Summerween” (Season 1, Episode 12)

Only Gravity Falls could pull off Halloween in the middle of July and make it feel perfectly normal. “Summerween” flips the calendar upside down, proving that costumes, candy, and mild terror don’t need cold weather to thrive. The town celebrates with jack-o-melons instead of pumpkins and a creepy creature called the Summerween Trickster who shows up to make sure Dipper and Mabel respect the spirit of the holiday. It’s funny, a little freaky, and somehow heartfelt – the kind of episode that makes you nostalgic for that sweet mix of sugar rush and fear. “Summerween” isn’t just another themed special; it’s a reminder that Halloween is more about energy than the date on the calendar. | © Disney Television Animation

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Chowder – “The Spookiest House in Marzipan” (Season 3, Episode 2)

If there was ever a cartoon that could turn a haunted house into a buffet of chaos, it’s Chowder. In “The Spookiest House in Marzipan,” our eternally hungry hero is sent to deliver a meal to a creepy mansion that looks like it’s been decorated by a ghost with questionable taste. Everything inside either moans, jumps, or tries to eat someone – and Chowder reacts exactly how you’d expect: with wild panic and slapstick brilliance. It’s both spooky and hilarious, and perfectly captures the kind of Halloween that feels like running through a funhouse after too much candy. It’s weird, messy, and impossible not to enjoy – much like Chowder himself. | © Cartoon Network Studios

Camp Lazlo – “Hallobeanies” (Season 2, Episode 1)

There’s something delightfully strange about Halloween at a summer camp. “Hallobeanies” throws the Bean Scouts into a holiday they barely understand, and it turns into a comedy of errors involving costumes, candy, and Scoutmaster Lumpus trying (and failing) to keep his sanity. The episode plays with every campfire horror cliché in the book, then twists it into pure silliness. There’s a certain charm in watching the campers try to make sense of trick-or-treating in the middle of the woods – and even more charm in seeing how disastrously wrong it all goes. It’s the kind of episode that makes you wish your camp had a “Hallobeanies” night too. | © Joe Murray Productions / Cartoon Network Studios

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Craig of the Creek – “The Legend of the Library” (Season 4, Episode 1)

Every kid who grew up with a favorite hangout spot will instantly connect with this one. In “The Legend of the Library,” Craig and his friends explore a spooky story about their local library being haunted – and of course, they can’t resist checking it out for themselves. The result is a perfectly balanced mix of suspense, heart, and adventure, where flickering lights and echoing halls replace traditional monsters. It’s less about jump scares and more about that delicious childhood thrill of believing every rumor might be true. Craig of the Creek turns curiosity into courage, and the ghost story becomes a celebration of imagination itself. | © Cartoon Network Studios

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Ed, Edd n Eddy – “Ed, Edd n Eddy’s Boo Haw Haw” (Special Episode)

Nobody did Halloween chaos quite like the Eds. “Boo Haw Haw” takes the trio’s usual candy-obsessed antics and cranks them up to eleven with a full-blown haunted adventure. After hearing about a mythical town that gives out endless sweets, they set off to find it – only for Ed to spiral into a monster-filled hallucination after watching too many horror flicks. What follows is pure, unfiltered Ed, Edd n Eddy mayhem: bizarre visuals, offbeat humor, and a candy quest gone completely off the rails. It’s wild, it’s nostalgic, and it captures that manic energy of being a kid on Halloween night when the world feels both silly and just a little bit spooky. | © Cartoon Network Productions

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The Amazing World of Gumball – “Halloween” (Season 2, Episode 9)

Only Gumball could turn a simple Halloween party into a full-on supernatural disaster. In “Halloween,” the Watterson family’s celebration goes sideways when their ghostly classmate Carrie invites them to her haunted house, and things quickly escalate into body-swapping chaos. The episode juggles wacky humor, eerie visuals, and that perfect balance between the silly and the spooky that Gumball nails every time. It’s got jump scares, slapstick, and a reminder that even ghosts deserve a little fun. The whole thing feels like Halloween night itself – a little weird, a little messy, and absolutely unforgettable. | © Cartoon Network Studios / Boulder Media

Dexter’s Laboratory – “Filet of Soul” (Season 2, Episode 8)

Dexter, a boy genius, and the supernatural – what could go wrong? In “Filet of Soul,” it all starts with a simple misunderstanding: Dexter thinks his beloved pet fish has come back to haunt him. Naturally, Dee Dee makes things worse (as always), and the episode spirals into an over-the-top ghost hunt inside the lab. The mix of science, sarcasm, and slapstick fear is classic Dexter’s Lab – a perfect example of how the show turned even the simplest premise into organized chaos. It’s spooky without being scary, smart without being smug, and completely timeless in its cartoon absurdity. | © Hanna-Barbera Cartoons / Cartoon Network Studios

Johnny Bravo – “Bravo Dooby Doo” (Season 1, Episode 3)

Before crossover episodes were a trend, Johnny Bravo teamed up with the Scooby-Doo gang – and it was glorious. “Bravo Dooby Doo” throws Johnny into a classic haunted mystery, complete with foggy mansions, fake monsters, and jokes that fly faster than you can say “Jinkies!” It’s both a parody and a love letter to old-school cartoons, with Johnny’s clueless machismo clashing hilariously against the gang’s polished mystery-solving routine. The result? A Halloween treat that’s part nostalgia trip, part pure comedy gold. It’s one of those rare episodes that manages to celebrate two eras of animation at once. | © Hanna-Barbera Cartoons

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We Bare Bears – “Charlie’s Halloween Thing 2” (Season 4, Episode 18)

We Bare Bears takes a surprisingly cinematic turn with “Charlie’s Halloween Thing 2,” a Halloween special that plays like a monster movie marathon inside a kids’ cartoon. Charlie, everyone’s favorite awkward cryptid, hosts his own spooky anthology filled with mini horror tales starring the bears. It’s self-aware, packed with meta humor, and still somehow wholesome in that We Bare Bears way. Each short story brings a new flavor of Halloween fun – from funny to freaky – proving that even the gentlest shows can get delightfully weird when October rolls around. It’s cozy, clever, and just the right amount of creepy. | © Cartoon Network Studios

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The Grim Adventures of Billy & Mandy – “Billy & Mandy’s Jacked-Up Halloween” (Season 2, Episode 15)

Nobody does Halloween quite like Billy & Mandy. In “Jacked-Up Halloween,” Grim accidentally unleashes Jack O’Lantern, an ancient prankster with a vendetta – and chaos naturally follows. Between Billy’s candy obsession, Mandy’s deadpan disinterest, and Grim’s undead panic, the episode hits every note of the show’s darkly funny personality. It’s filled with monsters, mischief, and more Halloween energy than a pillowcase full of chocolate bars. The gothic humor and over-the-top animation make it a seasonal must-watch, perfectly blending the creepy and the ridiculous in that way only Billy & Mandy could. | © Cartoon Network Studios / Williams Street

Adventure Time – “The Creeps” (Season 3, Episode 12)

Only Adventure Time could take a whodunit mystery, add ghosts, and still make it feel like an emotional fever dream. In “The Creeps,” Finn and Jake get invited to a spooky mansion for a fancy dinner party, which quickly devolves into a haunted mystery straight out of a ghost novel – except, of course, everyone’s a weirdo from the Land of Ooo. The episode plays with horror tropes in the most Adventure Time way possible: part parody, part heartfelt chaos. Between jump scares, fake murders, and actual ghosts, it’s the kind of Halloween story that’s both genuinely eerie and oddly cozy. It’s like watching a kid’s version of Clue… if Clue had talking candy people. | © Cartoon Network Studios / Frederator Studios

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Codename: Kids Next Door – “Operation: T.R.I.C.K.Y.” (Season 3, Episode 11)

For a show all about kids fighting adult oppression, Halloween was basically their Super Bowl. “Operation: T.R.I.C.K.Y.” sees the Kids Next Door facing off against none other than the evil Mr. Wink and Mr. Fibb – plus a mysterious villain who’s a little too good at scaring them. There’s candy, gadgets, disguises, and that classic mix of humor and heroics that made the series so iconic. What’s fun is how the episode captures that “Halloween night as a mission” feeling every kid had – when trick-or-treating genuinely felt like saving the world. It’s action-packed, perfectly weird, and pure nostalgic joy from start to finish. | © Curious Pictures / Cartoon Network Studios

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Cow and Chicken – “Halloween with Dead Ghost, Coast to Coast” (Season 2, Episode 2)

You’d expect nothing less than utter insanity from Cow and Chicken, and this Halloween special delivers exactly that. “Halloween with Dead Ghost, Coast to Coast” is part horror spoof, part surreal fever dream, featuring Cow’s unstoppable optimism clashing with the show’s usual grotesque chaos. There are monsters, bad costumes, and The Red Guy being his usual delightfully inappropriate self. It’s loud, absurd, and somehow still manages to nail that offbeat Halloween atmosphere – like a sugar rush that never ends. It’s one of those episodes that makes you laugh, cringe, and wonder how this ever aired on kids’ TV (in the best way possible). | © Hanna-Barbera Cartoons / Cartoon Network Studios

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Regular Show – “Terror Tales of the Park” (Season 3, Episode 4)

When it comes to Halloween specials, Regular Show went above and beyond. “Terror Tales of the Park” kicks off a now-beloved tradition – the gang sitting in a car telling scary stories that spiral into wild, supernatural chaos. Each mini-story is weirder than the last, from haunted houses to cursed tapes, all wrapped in that perfectly deadpan Regular Show humor. It’s like an anthology movie packed into eleven minutes, balancing genuine creepiness with ridiculous fun. What makes it work so well is how it treats Halloween like an event – something you laugh through, scream through, and remember long after. | © Cartoon Network Studios

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Foster’s Home for Imaginary Friends – “Nightmare on Wilson Way” (Season 5, Episode 10)

Every Halloween, Bloo finds a new way to turn Foster’s upside down – but “Nightmare on Wilson Way” might be his masterpiece of mischief. Determined to outdo everyone, Bloo plans the ultimate haunted house, complete with scares that even imaginary friends can’t handle. Of course, it spirals into total pandemonium, with every room turning into a chaotic set piece of spooky hilarity. The episode nails that perfect Foster’s formula: big-hearted characters, brilliant animation, and humor that somehow manages to be both chaotic and charming. It’s a Halloween gem that reminds you being scared with friends is always more fun. | © Cartoon Network Studios / Boulder Media