History PsychopathicManchild / AnimeAndManga

* ''Manga/{{Berserk}}'': Before the Eclipse, many characters comment that Griffith has an almost childlike innocence about him (though since he would sometimes display this at inappropriate times, certain people would find it creepy rather than endearing). Indeed, one could interpret his dream of obtaining his own kingdom as a boyish fantasy he never did quite let go. Once he becomes [[DemonLordsAndArchdevils Femto]], he still tries to pursue this fantasy, but in a much more ruthless and remorseless way. And just to drive the whole point home, him sacrificing his own mercenaries and raping Casca during the Eclipse is nothing but him throwing a murderous temper tantrum.

* ''Manga/JojosBizarreAdventureDiamondIsUnbreakable'': Despite having an IQ of 160 according to Jotaro and being 35 years old, [[StarterVillain Anjuro "Angelo" Katagiri]] acts less his age and more like a spoiled-rotten, heartless and sociopathic 2-year-old crybaby, what with him raping little children and women indiscriminately, doing unthinkably heinous crimes since the age of 12 that even '''ComicBook/TheJoker''' [[EvenEvilHasStandards would find utterly disgusting]], treats his crimes as [[ForTheEvulz nothing more than a childish game]], does things on a whim and, what sells the deal, is his [[EvilIsPetty attempt of murdering Josuke for interrupting his planned robbery]] which is nothing but a deranged tantrum he throws and, out of spite, plans to rape Josuke's mother Tomoko, his [[DirtyCoward extreme cowardice]] and [[NeverMyFault pathological inability to acknowledge his atrocities]] as shown in the film and his DisproportionateRetribution towards dog owners who allow their canine companions let their poop near him, coming across as a child breaking his own toys. This is all what makes him [[HateSink that much more loathsome]].
* ''Manga/JojosBizarreAdventureStoneOcean'':
** Jolyne's cellmate [[StarterVillain Gwess]]. Upon first meeting her she attempts to [[MoodSwinger brain Jolyne with a chair in a fit of rage]] after she mistakenly attempts to use her bunk before doing a full 180 and acting friendly and treats her [[IncredibleShrinkingMan shrunken victims]] like [[LivingDollCollector a girl playing with stuffed animals]], having them do cutesy animal sounds in the "costumes" she makes for them. She also has them killed when they stop being of interest to her. Her ability is [[PersonalityPowers explained as a manifestation of her desire]] to [[FriendlessBackground make friends]] [[ControlFreak but have power over them]].
** Thunder [=McQueen=] was a MoodSwinger with a LackOfEmpathy, easily brought to tears of despair or joy at the slightest provocation. He's first introduced stealing money from Ermes and the other infirmary patients at the prison, and his boss [[BigBad Pucci]] states that while he holds no malice towards others, his childish EntitledBastard attitude and selfish HisOwnWorstEnemy behavior that drags down those around him makes him "the purest form of evil".

* ''Manga/{{Berserk}}'': Before the Eclipse, many characters comment that Griffith has an almost childlike innocence about him (though since he would sometimes display this at inappropriate times, certain people would find it creepy rather than endearing). Indeed, one could interpret his dream of obtaining his own kingdom as a boyish fantasy he never did quite let go. Once he becomes [[DemonLordsAndArchdevils Femto]], he still tries to pursue this fantasy, but in a much more ruthless and remorseless way.

*** Envy, a {{shapeshifting|Trickster}} ArtificialHuman who's 175 years old is a sadistic, misanthropic psychopath who often acts even less mature than the teenage hero Edward. They're arrogant, impulsive, petty, sarcastic, gloat about the atrocities they've committed like a [[TeensAreMonsters juvenile delinquent or bully]], become a whiny DirtyCoward and throw tantrums when they're outmatched, and of course they’re [[InferioritySuperiorityComplex extremely insecure]]. They also pick a young, cute [[ShapeshifterDefaultForm preferred form]], and their [[TechnicallyNakedShapeshifter "outfit"]] choice looks like they bought it from Hot Topic.

* ''Manga/FullmetalAlchemist'':
** Gluttony is a ridiculously strong ArtificialHuman over 160-years-old (anime)/90-years-old (manga and ''Brotherhood'') with the temperament and intelligence of a young boy and stuck in the infant phase of [[ExtremeOmnivore wanting to shove everything in his mouth.]] Throughout most of the series, he's reliant on his "keeper" Lust to do the thinking for him (his main input being to ask her if he can eat people). He sees her like his mother and [[spoiler:when she dies, the poor guy suffers a nervous breakdown; and though in the manga he is still able to function properly, he did not forget her death, going after Mustang for revenge and tearfully calling for her upon death.]]
** Envy in the manga/''Brotherhood'', another ArtificialHuman who's 175 years old is a sadistic, misanthropic psychopath who often acts even less mature than the teenage hero Edward. They're arrogant, impulsive, petty, sarcastic, gloat about the atrocities they've committed like a [[TeensAreMonsters juvenile delinquent or bully]], become a whiny DirtyCoward and throw tantrums when they're outmatched, and of course they’re [[InferioritySuperiorityComplex extremely insecure]]. They also pick a young, cute [[ShapeshifterDefaultForm preferred form]], and their [[TechnicallyNakedShapeshifter “outfit”]] choice looks like they bought it from Hot Topic. Envy is a downplayed case in ''Anime/FullmetalAlchemist2003'', where [[GenderFlip he's]] a lot more competent and confident than his manga counterpart, but he's even more of a murderous psychopathic bastard. He's also got the motivation of [[spoiler:being abandoned by his father Hohenheim]] and has the lifelong goal of murdering him, which can certainly come off as juvenile; especially when he throws a tantrum when [[spoiler:Dante]] incorrectly tells him [[spoiler:Hohenheim has died]], meaning he didn't get to kill him.
** Shou Tucker is a grown man in his early fifties but displays a complete lack of awareness of other people's feelings, to the point that the idea that anyone would be angered at his [[spoiler:turning his own family into experimental abominations, thereby ruining their lives]] [[EvilCannotComprehendGood did not occur to him]] until it was too late. After being exposed, instead of introspecting his actions, he taunts Edward over the latter's failed attempt at human transmutation and how [[NotSoDifferentRemark it makes them identical]], [[NotSoSimilar which falls flat]] given that Edward actually learned from his mistake and wants to atone for it. It basically comes off as Tucker acting like a child going "Nyah nyah-nyah nyah nyah!" When placed under house-arrest to be decommissioned and subpoenaed, all he does is [[NeverMyFault whine about how no-one understands him]], [[EntitledBastard having expected to be rewarded instead of punished]].
** In contrast to his sophisticated, FauxAffablyEvil philospher manga/''Brotherhood'' counterpart, Kimblee in the 2003 anime is a rude low-functioning SociopathicSoldier who treats the red stones fueling his explosions in genocidal warfare like toys.

** Gluttony is a ridiculously strong ArtificialHuman over 160-years-old with the temperament and intelligence of a young boy and stuck in the infant phase of [[ExtremeOmnivore wanting to shove everything in his mouth.]] Throughout most of the series, he's reliant on his "keeper" Lust to do the thinking for him (his main input being to ask her if he can eat people). He sees her like his mother and [[spoiler:when she dies, the poor guy suffers a nervous breakdown.]]
** Envy in the manga/Brotherhood, another ArtificialHuman who's 175 years old is a sadistic, misanthropic psychopath who often acts even less mature than the teenage hero Edward. They're arrogant, impulsive, petty, sarcastic, gloat about the atrocities they've committed like a [[TeensAreMonsters juvenile delinquent or bully]], become a whiny DirtyCoward and throw tantrums when they're outmatched, and of course they’re [[InferioritySuperiorityComplex extremely insecure]]. They also pick a young, cute [[ShapeshifterDefaultForm preferred form]], and their [[TechnicallyNakedShapeshifter “outfit”]] choice looks like they bought it from Hot Topic. Envy is a downplayed case in ''Anime/FullmetalAlchemist2003'', where [[GenderFlip he's]] a lot more competent and confident than his manga counterpart, but he's even more of a murderous psychopathic bastard. He's also got the motivation of [[spoiler:being abandoned by his father Hohenheim]] and has the lifelong goal of murdering him, which can certainly come off as juvenile; especially when he throws a tantrum when [[spoiler:Dante]] incorrectly tells him [[spoiler:Hohenheim has died]], meaning he didn't get to kill him.

** In contrast to his sophisticated, FauxAffablyEvil philospher manga/Brotherhood counterpart, Kimblee in the 2003 anime is a rude low-functioning SociopathicSoldier who treats the red stones fueling his explosions in genocidal warfare like toys.

** One of the newest members of the [[PsychoRangers Blackbeard Pirates]] [[spoiler:San Juan Wolf]] seems to apply. In his past, he was a Pirate who committed crimes "so atrocious they were effectively erased from history itself", a bounty likely to be in the upper multi-millions, and when caught offscreen, was transferred to the lowest level of [[TheAlcatraz Impel Down]], and to earn his freedom from there, was [[spoiler:forced to kill everyone in his cell on orders from [[EvilCounterpart Marshall D. Teach]] and co.]] Also, he is the largest man alive in the show, easily dwarfing Oars at least four time over, and is compared to a walking Sears Tower. But, in his first appearance, he [[spoiler:peeks out from Marineford HQ's main building like a curious child, has an expression like he was caught stealing from a cookie jar when spotted by Mooks, expressed surprise that a Vice Admiral knew his name, and was scared by Whitebeard and hid while the rest killed him.]]

* Wonderweiss Margela from ''Manga/{{Bleach}}'' fits pretty well. He can't even speak coherently, but heaven help you if you don't let him play with your hat [[spoiler:or aren't Yamamoto]]. Under Aizen's full control, appears to have limited understanding of his actions, will attack Aizen's opponents, but seemingly at random with no real indication he's enjoying the violence as such.

** Yoru [[spoiler:is the [[HorsemenOfTheApocalypse personification of war and violence]]]], which belies the fact that she has the temper and temperament of a child. When Asa and Yoru are inadvertently saved by Chainsaw Man, Yoru has a tantrum screaming about how much she hates him before falling asleep. When Asa calls Yoru stupid for [[DramaticIrony thinking that Denji is Chainsaw Man]], Yoru throws a tantrum until Asa takes the insult back.

** Jan Valentine's a bloodlusted idiot who functions roughly on the same level as an adrenaline-fueled teenager. He also dresses like a chav youth despite being an adult.

** Power combines a Devil's bloodthirst and love of tormenting humans with the personality of a particularly obnoxious 7-year-old, refusing to eat vegetables and rarely taking care of her personal hygiene. [[MagnificentBastard Makima]] even [[LampshadeHanging calls her]] Denji and Aki's "[[AnnoyingYoungerSibling bratty little sister.]]"

** Jan Valentine's a bloodlusted idiot who functions roughly on the same level as an adrenaline-fueled teenager.

** In the LightNovel ''Literature/AnotherNote'', Beyond Birthday.

* Ladd Russo of ''LightNovel/{{Baccano}}'' can get pretty child-like in his homicidal glee, and is usually shown [[https://www.youtube.com/watch?v=VNoITwTJiEM skipping]], babbling excitedly, dancing in pools of blood, or any combination of the three.

** In the LightNovel ''LightNovel/AnotherNote'', Beyond Birthday.

* ''LightNovel/TheDevilIsAPartTimer'': In his first appearance, Lucifer [[LovesTheSoundOfScreaming reveled in the screams he caused]] and treated the fight with Maou and Emi as a big game as he destroyed everything around him.

* Izaya of ''{{LightNovel/Durarara}}''. One of the rare ManipulativeBastard versions. It becomes quite obvious as the series progresses that he sees everyone and everything around him as little more than toys to be played with until they break.

* Gates from ''Lightnovel/FullMetalPanic'' is a mysterious man [[EstablishingCharacterMoment whose first act was to get rid of the subordinate who argued with him by kicking him out of a helicopter]]. An extremely volatile man with a ridiculous TriggerHappy attitude, Gates seems to enjoy big explosions and being cruel to people like a child that likes crushing their toys, but with the difference of being 40 years old and not even bothering to hide it one bit.

* ''LightNovel/SwordArtOnline'':

* Jeremy Agriche of ''Lightnovel/TheWayToProtectTheFemaleLeadsOlderBrother'' attacks, beats, maims and kills people over slightest perceived infractions, only to later run back like an excitable puppy to his beloved older sister for headpats and praise.

-->'''America''': I think it makes use of our strengths in the best way possible! Britain [[LeeroyJenkins goes in suicidal]] -- it's your Charge of the Light Brigade routine! France [[CheeseEatingSurrenderMonkeys gives up without a struggle]]! And for Russia, just keep [[WeHaveReserves sending us your cannon fodder]]! You'll draw the guns away... from me!

** The Future Devil is energetic, cheerful, loves to dance, and seeks to entertain itself... [[FauxAffablyEvil with the horrible fates of its contractors]]. It signs on with Aki purely because ItAmusedMe [[spoiler:[[BewareTheSillyOnes and because his death allowed it to escape]]]], tries to make him shout "The future rules!" before summoning it, and in the anime tells him "your death will ''[[PrecisionFStrike fucking]]'' rule."

** Envy in the manga/Brotherhood, another ArtificialHuman who's 175 years old is a sadistic, misanthropic psychopath who often acts even less mature than the teenage hero Edward. They're arrogant, impulsive, petty, sarcastic, gloat about the atrocities they've committed like a [[TeensAreMonsters juvenile delinquent or bully]], become a whiny DirtyCoward and throw tantrums when they're outmatched, and of course they’re [[InferioritySuperiorityComplex extremely insecure]]. They also pick a young, cute [[ShapeshifterDefaultForm preferred form]], and their [[TechnicallyNakedShapeshifter “outfit”]] choice looks like they bought it from Hot Topic. Envy is a downplayed case in the [[Anime/FullmetalAlchemist 2003 anime]], where [[GenderFlip he's]] a lot more competent and confident than his manga counterpart, but he's even more of a murderous psychopathic bastard. He's also got the motivation of [[spoiler:being abandoned by his father Hohenheim]] and has the lifelong goal of murdering him, which can certainly come off as juvenile; especially when he throws a tantrum when [[spoiler:Dante]] incorrectly tells him [[spoiler:Hohenheim has died]], meaning he didn't get to kill him.

* The villain from the second episode of ''Anime/PumpkinScissors'' shows signs of this, in that he kills the people in his charge as part of a fun game and is hinted to be capricious to the people in his court.

* Tongpu from the ''Anime/CowboyBebop'' episode "Pierrot Le Fou" is an unstoppable killing machine who is terrified of cats and reveals his childlike nature upon being wounded by Spike. Exposition explains earlier on that this mad, efficient killer was [[{{Tykebomb}} the result of experiments to turn him into what he is today]], but the experiments had the unintended side effect of regressing his mind, and Jet remarks (paraphrasing Freud) that [[KidsAreCruel "there is nothing so pure and cruel as a child"]]. His fear of cats is the result of classical conditioning, with the researchers' cat having been constantly visible to him through a window during the experimentation (leading him to associate cat imagery with the suffering he endured), and his reaction to Spike's attack is the first time we truly grasp just how far back he's gone. [[spoiler:The "child" part of his manchild nature is what ultimately becomes his downfall.]]

** America tends to [[RonTheDeathEater get this treatment]] when he shows up in {{Dark Fic}}s...

* The Eleven Scars in ''Manga/MobPsycho100'' are all immensely powerful psychics, believing that their powers make them [[AGodAmI worthy to rule and be worshiped.]] The main characters, who all subscribe to AGodIAmNot, face them and [[spoiler:either subject them to a CurbStompBattle from Mob, Ritsu, or Teruki or a [[BreakThemByTalking verbal smackdown]] from Reigen.]]

** Yoru [[spoiler:is the [[HorsemenOfTheApocalypse personification of war and violence]], which belies the fact that she has the temper and temperament of a child. When Asa and Yoru are inadvertently saved by Chainsaw Man, Yoru has a tantrum screaming about how much she hates him before falling asleep. When Asa calls Yoru stupid for [[DramaticIrony thinking that Denji is Chainsaw Man]], Yoru throws a tantrum until Asa takes the insult back.]]

** Power combines a Devil's bloodthirst and love of tormenting humans with the personality of a particularly obnoxious 7-year-old, refusing to eat vegetables and rarely taking care of her personal hygiene. Makima even calls her Denji and Aki's "[[AnnoyingYoungerSibling bratty little sister.]]"

*** Digitamamon was an EvilFormerFriend to Angoramon that started [[ToServeMan eating people]] while being [[BlueAndOrangeMorality unable to fathom that it was wrong]], and despite being an Perfect-level Digimon had a childlike voice and cry.
*** [=ExTyrannomon=] and [=WaruMonzaemon=] are Perfect-level evil plush toy Digimon much bigger than a normal person, but they are an absolutely nasty duo who manipulates and flatters a young girl to let them wreck havoc and turn them into dolls as they always wanted to.

** The biggest one, however, is [[BigBad All for One]] himself. Underneath his calm, collected and calculating exterior, this man is essentially a petulant child all-grown up, [[ExaggeratedTrope being even more childish than Tomura, Toga and Dabi combined]]. For starters, his goals of becoming an all-powerful demon king is [[spoiler: nothing but a childish fantasy derived from a manga he and his brother used to read as kids]], does atrocities on a whim [[ForTheEvulz for the hell of it]], treats said atrocities like a kids' game, is [[ItsAllAboutMe childishly selfish]], and the ultimate selling point are his {{villainous breakdowns}}. He has one first on the Star and Stripes Arc, during which he reveals his true colors as a SoreLoser and has a hissy fit, the second one being when Jiro and eventually Tokoyami destroy his mask, where his feral meltdown is almost exactly like that of a bawling crybaby breaking his toys in a feral manner. And to really sell it, there's [[RuleOfThree the third one]], when Deku overpowers his TomurAFO form and All for One ends up throwing a violent high-octane childish tantrum.

** The biggest one, however, is [[BigBad All for One]] himself. Underneath his calm, collected and calculating exterior, this man is essentially a petulant child all-grown up, [[ExaggeratedTrope being even more childish than Tomura, Toga and Dabi combined]]. For starters, his goals of becoming an all-powerful demon king is [[spoiler: nothing but a childish fantasy derived from a manga he and his brother used to read as kids]], does atrocities on a whim [[ForTheEvulz for the hell of it]], treats said atrocities like a kids' game, is [[ItsAllAboutMe childishly selfish]], and the ultimate selling point is his {{Villainous Breakdown}} on the Star and Stripes Arc, during which he reveals his true colors as a SoreLoser and essentially throws a violent high-octane temper tantrum alongside his psychological meltdown when Jiro damages his mask, where he acts almost exactly like a bawling crybaby breaking his toys in a feral manner.