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'''''Billy the Cat''''' is a Franco-Belgian comic book series by the Belgian Stéphane Colman and Stephen Desberg. Also an animated cartoon version has been produced for broadcast and is ran through American Broadcasting Company, amongst others. Both comic and cartoon deal with the everyday and secret lives of urban animals, and while the characters are largely the same in both versions, the stories and situations are very different.

The Comic follows the story of Billy, a normal schoolboy who often pranks and bullies animals. However, early in the first comic album, [[MoodWhiplash he is killed when he carelessly runs out in the street and is hit by a car.]] Told that his chances of getting into Heaven are slim due to his misdeeds, he is given a second chance by being returned to earth as a young cat. The comic follows Billy's attempts to adapt to living as a cat and chronicle his misadventures while he interacts with other animals. The comic is notably [[DarkerAndEdgier darker and more dramatic]] than the serialized television show.

Otherwise the television show, created in 1994, follows a similar premise with some major deviations. In the show the transformation is the revenge of an [[MagiciansAreWizards angry magician]] whose cat Billy had bullied, while the magician's cat assumes Billy's form and lives with his family. The cartoon is more episodic and lighthearted than the comic, though it is [[ExecutiveMeddling not completely unexpected.]]

Not to be confused with the UK comic strip of the same name, which ran in ''ComicBook/TheBeano'' and was about a teenage superhero, or with [[ComicStrip/BloomCounty Bill the Cat]].
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!!Shared tropes:

* AccessoryWearingCartoonAnimal: A number of cats wear bows or bowties -- most notably Mr. Hubert, who despite being an alleycat is never seen without his green bowtie.
* AnimalTalk
* {{Animorphism}}
* BananaInTheTailpipe
* BigEater: Mr. Hubert, even more so in the animated series, where he seems to be unable to go for long without a big meal.
* BigBrotherMentor: Mr. Hubert to Billy.
* BrattyHalfPint: Billy as a human, with an equal measure of TheBully.
* CarnivoreConfusion: Given that all animals are sapient and can talk, it potentially causes a few issues. It comes up a lot more in the comic, where most of the cats (even otherwise sympathetic ones) have no qualms trying to eat talking mice or birds. In the cartoon, the cats eat mostly garbage or food fed to them by a kindly old lady, and not their pigeon friend.
* CatsAreMean: Averted. Cats have different temperaments and personalities, just like humans -- in the cartoon, most of them are even implausibly friendly with other animals that real life cats consider food, or at least prey. A lot of Hubert's friends are {{Jerkass}}es to Billy to begin with, but come around eventually. The only cat who can really be considered mean is Sanctifer, who in the comic is KilledOffForReal while in the cartoon has been toned down and goes through quite a bit of DiminishingVillainThreat.
** Interestingly, dogs get a much worse portrayal than cats. As said above, other than the villain Sanctifer, the worst a cat can be is a JerkWithAHeartOfGold. Dogs, however, are not only shown as being dumb brutes, but also as very vicious, highly racist against cats and more than willing to eat them. There are even times where the only reason they chase and try to kill the cat characters is, indeed, only because they are cats. While there are heroic dogs in both the comics and the series, this is one rare occasion where a dog is much more likely to be the antagonist rather than a cat.
* CatsAreSuperior: Mr. Hubert firmly believes in this, especially in the comics. In the eight album, he even tells Billy that no other creature (not even humans) is as well adapted to this world as cats, and claims that, sometimes, he wonders if the entire universe was created just for cats.
* {{Cloudcuckoolander}}: Several characters, though none more prominent than Jumbo the pigeon, who thinks he's an airplane -- or at least that he might become one if he acts enough like one.
** Most of the animal characters also see Billy as this, as his claims of being a human trapped in the body of a cat aren't usually taken seriously.
* FantasticRacism: Between cats and dogs. This is more notable in the animated series. Cats and dogs absolutely despise each other and don't even seem to consider getting along. Also, Mr. Hubert in the series seems to be unable to consider pigeons as anything other than food, and takes a bit of time to accept the pigeon Jumbo as an ally.
** In the animated series, there was also a group of purebred dogs who had sworn to kill not only every cat they come across, but also any dog that isn't a purebred like themselves. Meaning that, yes, these dogs extend their racism to even their own kind.
* FishOutOfWater: Billy has no idea how to survive as a cat.
* GratuitousEnglish: The original French title is "''Billy the Cat''" ([[DontExplainTheJoke an obvious pun on "Billy the Kid"]]).
* {{Jerkass}} --> JerkWithAHeartOfGold: Billy
* KarmicTransformation
* KickTheDog: As a human Billy would ''literally'' do this. Cats and other animals were not exempt from being kicked either.
* NamedAfterSomeoneFamous and PunBasedTitle: Refers to UsefulNotes/BillyTheKid.
* SesquipedalianLoquaciousness: Mr. Hubert.
* YouDirtyRat: In the comics, the servants of Sanctifer are a nasty and vicious colony of rats. In the animated series we have the giant rat King and his group, who still serve as villains.
* YouFightLikeACow: Mr. Hubert, when chased by or fighting bigger, fiercer animals has a knack for make jokes and quips to rile them up even further as he jumps out of their reach.

!!Comic-specific tropes:

* AGodAmI: Sanctifer slips into this -- or rather, drops any pretense that he isn't like this -- towards the end of the first comic after having beaten Mr. Hubert thoroughly and is about to leave him to die:
-->"You see, the difference between us is that you're going to die, and I'm going to live! But that's not all: No one will mourn your passing! There are thousands of cats like you, so alike that they can't even tell one another apart. ''I'' am Sanctifer, the chosen one of the divine cats, the prime example of the ressurection of our immortal powers! I'm the prophet of the rebirth of our kind! I'm the purifier!
* AnimalTesting: ''In the Skin of a Cat'' has a dark, creepy underground lab in an old factory where animals are kept in cages and experimented upon. It's never made clear just what the experiments are for (nor do we see the actual experiments -- just the imprisoned animals, some of whom have been driven insane by the experiments), but it seems to be a shady and most likely illegal business.
* ArtEvolution: The first three comics are drawn in a noticeably different style than the latter ones; it's most noticable with Hubert.
** The pilot comic looks very different; Billy looks nothing like he does in the series proper, and some of the cats are {{Half Dressed Cartoon Animal}}s -- the series has them as {{Accessory Wearing Cartoon Animal}}s at the most.
* BadBoss: Sanctifer towards the rats that serve and worship him. He is quite cruel towards them and doesn´t think twice about killing them should they fail him.
* BadSamaritan: Sanctifer in the first comic. He takes Billy in under his wing, but proves to be a ManipulativeBastard with megalomaniac tendencies.
* CassandraTruth: None of the other animals believe that Billy was ever human.
* DarkerAndEdgier: The comic to the cartoon. There's some genuinely dark stuff here.
* FauxAffablyEvil: Sanctifer can be polite, helpful and friendly, but deep down, he is a very nasty and sociopathic individual, who will get quite agressive if things don't go his way.
* {{Karma}}
* KnightOfCerebus: Sanctifer is quite a frightening and dangerous villain. The comics in which he appears are noticeably darker than the others.
* LoudOfWar: Hell in the pilot comic (even before "in the skin of a cat"). Eternal dance music that's really eternal. A party that never stops! Sounds great, huh? Not really according to Billy...
* MoodWhiplash: Most notably in the pilot comic strip, though happens in the later comics as well.
* RaiseHimRightThisTime: In a subversion, the wrongdoer in question is given a new life as a cat instead of a human.
* {{Reincarnation}}: Oddly, it was bestowed upon Billy by an angel. His second chance is given to atone for all the [[KickTheDog animal cruelty]] he perpetrated in his former life.
* RetCon[=/=]ContinuityReboot: The very first standalone story of Billy had him also getting crushed under a car, but he actually got into Heaven. Noticing that Heaven wasn't that great, he descended to Hell, where an eternal party with loud music was going on. Then, after noticing eternal was really eternal and the music would never stop, he asks a guru to reincarnate him, and as a fluke he's returned as a cat to Earth. This whole plot was scrapped when they started writing "''dans la peau d'un chat''" ("in the skin of a cat").
* SmallNameBigEgo: Hubert has traces of this, mixed with a hint of KnowNothingKnowItAll. While he ''is'' genuinely skilled and competent, he is nowhere near the cultured and intelligent globetrotter he ''thinks'' he is.
* TransformationComic


!!Show-specific tropes:

* AdaptationalHeroism: While Sanctifer is still an asshole, he is no way near as evil as the megalomaniac sociopath he was in the comic.
* AdaptationalWimp: Sanctifer was also far more formidable and dangerous in the comics.
* ArtisticLicenseAstronomy: In the episode ''Happy Starday'', astronomers seem to look for an individual star, visible with nacked eye, and than name it, so it has not been seen. (How do they know, for what they look?) Besides, Mr. Hubert has to move to be in the light of his star, that he already sees. (If hee sees it, its light falls on his eyes.)
* BalefulPolymorph
* ChuckCunninghamSyndrome: The wizard's cat that was transformed into Billy's doppelganger is shown in the opening episode and [[TheyWastedAPerfectlyGoodPlot never seen or mentioned again]]. It wasn't even present in the episode when Billy visits his former home, where the cat should logically be.
* ExpositoryThemeTune
* FreakyFridayFlip
* HowDoIShotWeb: At first Billy has difficulties with his new cat body and doesn't know how to use his retractable claws or even meow.
* HumanityEnsues: The magician's cat is transformed into a human to pretend to be Billy while he is being a cat.
* LeftHanging: The viewer never finds out what happens to Billy in the end. Does he stay a cat forever? Does he get turned back into a human?
* LighterAndSofter: And how. All the darkness and horror of the comics has been exchanged with cartoony slapstick.
* MagiciansAreWizards
* NiceMice: Completely averted in the second episode, where a group of mice torment Billy. They are no better than the rat villains who appear later in the series.
* RaceLift: The second friend of Billy with whom he used to taunt cats with is white in the cartoon. In the comic, he's black, and in original French can't even pronounce the "R" letter.
* SparedByTheAdaptation: Billy, due to his cat transformation being the result of an angry wizard rather than of an untimely death and reincarnation.
** Sanctifer as well, as in the comics, he was eventually KilledOffForReal.
* StatusQuoIsGod
* WhatHappenedToTheMouse: So egregious that it borders into PlotHole territory. In one episode Billy revisits his human home and the magician's cat that took his place is no longer there. And what happened to the magician?
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