Cloudcuckoolander/Western Animation


 * A very large proportion of the cast of Adventure Time. Some individuals stand out in particular.
 * The people of Lumpy Space (especially Lumpy Space Princess) seem to abandon all shreds of sanity when they "turn lumpy."
 * Tree Trunks attempts to have tea with and seduce monsters (Tentacle monsters) when they attack her. Finn and Jake seem to consider Tree Trunks's idiosyncrasies to be due to senility, however.
 * Ice King later turns out to be a rather horrifying deconstruction of this trope. His strange behaviour actually stems from having had his mind warped and his memory erased by an Artifact of Doom. The process was slow and extremely painful, destroying his relationships with his fiancee and surrogate daughter, and it's implied that most of his actions are a subconscious attempt to replace them. By the time the main series takes place, he's barely a shadow of his old self and is miserable due to his inability to form normal relationships. And, it's implied that without the mental remnants of his old self restraining him, he would be just a violent madman rather than an ineffectual Cloud Cuckoo Lander. When this control occasionally slips, he is much more disturbing.
 * Tilly Green of Big City Greens lives by the beat of her own drum. This is a girl who once entered a goat into a dog show because she claimed it had the soul of a dog!
 * Bob's Burgers: While all three of the Belcher kids are pretty out there, Gene takes the cake with his outlandish ideas, short attention span, and Attention Whore tendencies.
 * Daffy Duck. Especially prominent in earlier shorts (though even his later, more egotistical persona isn't all that stable).

Daffy: WOO, HOO!!! HOO, HOO!!!

"I'm the bike pixie! Catch me if you can!"
 * Ed, Edd n Eddy:
 * Jonny 2x4, whose best friend is a wooden plank with a crude face drawn on it, is also an apparent expatriate of Cloudcuckooland. Taken to the extreme in "Shoo Ed", where he acts crazier than normal.


 * Ed might have left Cloudcuckooland the same day...

Ed: Yeah, Double-D, an elephant never forgets, but I forgot what the elephant remembered.


 * Rolf, the wacky foreigner, says weird things all the time and his culture has some very strange customs.
 * Len from Ruby Gloom fits this trope very well. He is known for being dumb and missing the point of almost all jokes, analogies, ect. He makes odd mistakes, such as mixing up irony and onomatopoeia. He is also shown to have odd and silly traits, like enjoying peanut butter and egg sandwiches. He's oblivious, often missing the obvious, and doesn't make good decisions.
 * Leni Loud from The Loud House is a sweet-natured Dumb Blonde whose train of thought goes to some very odd places at times. In "Left in the Dark", she thought she'd gone blind when she just forgot to open her eyes, and when Lynn tries to teach her martial arts in "Lock 'n' Loud", Leni tries flirting with the training dummy.
 * OK K.O.! Let's Be Heroes:
 * K.O. is a hyper-active and naive young boy (heavily based on kid Goku from the original Dragon Ball) who is eager to a fault when he sees a new challenge or meets someone new, not feeling the slightest bit of fear or suspecting the least bit of danger or adversarial intent.
 * Crinkly Wrinkly is an elderly were-fox who hangs around Lakewood Plaza Turbo, telling passers-by rambling stories about the old days, or indulging in weird behaviors like talking to his reflection in a window.
 * Pinky of Pinky and the Brain is a notorious Cloudcuckoolander, most commonly during the Are You Pondering What I'm Pondering? exchanges. One mini-episode that was done entirely from Pinky's perspective (to the point of having his snout in the camera view at all times) revealed the train of thought that led to one such exchange. It didn't come across any less weird for the explanation. Many of the Brain's schemes seem to originate from Cloudcuckooland. A giant clothes dryer?
 * Pops from Regular Show fits this trope perfectly. He's from somewhere called Lolliland where lollipops are currency. Not only that, in the eighties he was hit by a speeding golf cart carrying himself from the present (It's a Long Story) which seemed to have done a bit of brain damage. It's also hinted that he may have a brain tumor.
 * Stimpy of The Ren & Stimpy Show is an example of this. When he gets an idea, it's usually very far-fetched but due to the nature of the show sometimes it's plausible; these are evident with his theories on a simple question like, "why do kids go to school?" He responds with the answer that the kids' parents are aliens, "And while you're at school, they shed their human skins and breathe dryer lint!" When Ren hears about some of these ideas, he usually slaps him or tells him he has too big of an imagination.
 * Solar Opposites: Terry is the only one who doesn't see that humans have a problem with them at first.
 * Steven Universe:
 * Steven himself is an excitable young boy whose thought processes are a little weird sometimes.

Steven: I guess I'm just too tough to cry.

Pearl: Just today, you were crying about snakes.

Steven: (teary-eyed) They don't have any arms...


 * The "Pensive Moments with Steven Universe" series of online shorts showcases his odd thought processes.
 * Ronaldo Fryman is a Conspiracy Theorist who thinks the weird events caused around Beach City are the result of "snake people", when they're actually caused by the Crystal Gems. When Steven finally makes him realize the truth in "Keep Beach City Weird", he quickly revises his theories to revolve around a race of "polymorphic sentient rocks."
 * Total Drama:
 * Sierra puts the 'loony' in Loony Fan! Witness her idea of a wonderland: "Let me take you to a magical place full of Codies...some are giant. Some are small enough to fit in your pocket, and others are chocolate-covered marshmallows!" Which begs the question of just WHY she would consider that last bit so nice, and whether or not she's a vore enthusiast. Her "laptop computer" is a pizza box with a live rat for a "mouse."
 * Izzy's defining character trait, as can be seen from her label, "The Psycho Hose Beast".

Leshawna: Is it just me, or is that Izzy girl some kind of crazy?


 * Owen. His thought process is very unusual, often performing spontaneous, bizarre antics like getting naked and dancing.
 * Uncle Grandpa takes this trope Up to Eleven, where he is always making completely insane adventures for children.