History PsychopathicManchild / AnimeAndManga

*** The FinalBoss is an Ultimate-level that can single-handedly decimate Mega-level Digimon has an extremely simplistic view of "eat or be eaten" towards the Digimon world and cackles like a maniac upon mortally wounding Gammamon and driving Hiro into despair just because [[spoiler:he tricked him into separating from Gammamon]].

* At his core, Licht from ''Manga/BlackClover'' is this, taking a childlike glee in revealing to his human subordinates that he never did care about them and taking out his anger over the elves' massacre on humans who were not even responsible for an event that happened five centuries ago. This is seen when Asta mentally speaks with him after he becomes a dark elf, during which he takes his form as a child before the massacre, showing that he never truly matured after this event.

** ''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 [[YouHaveOutlivedYourUsefulness 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]]. She's so hopelessly insane that Jolyne breaks the longstanding DefeatMeansFriendship tradition and keeps her at arm's length.
*** Thunder [=McQueen=] was a MoodSwinger with a LackOfEmpathy, easily brought to tears of despair or joy at the slightest provocation. His EstablishingCharacterMoment was 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".

** Goku’s BigBrotherBully Raditz who is a total {{Jerkass}} who easily throws a fit and would not hesitate to kill his own baby brother and nephew.

** Goku’s BigBrotherBully Raditz who is a total {{Jerkass}} and would not hesitate to kill his own baby brother and nephew.

** Goku’s BigBrotherBully Raditz who is a total Jerkass and would not hesitate to kill his own baby brother and nephew.

* Naoka Ueno in ''Anime/ASilentVoice''. Even though she is 18 years old, it's clear she retains her childish mindset from grade school. She ridicules and humiliates Shouko, throws temper tantrums when she doesn't get her way, doesn't take responsibility for her actions, and refuses to move on from her past friendship break up. She finally overcomes this by the end of the manga, though [[AdaptationalJerkass not so much in the film version.]]

* ''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, and has hissy fits whenever things don't go his way (as him sacrificing his own comrades and then raping Casca during the Eclipse can perfectly show). Once he becomes [[DemonLordsAndArchdevils Femto]], he still tries to pursue this fantasy, but in a much more ruthless and remorseless way. And to drive the whole point home, there's the fact that, as the series' ArtEvolution progresses, he's drawn to look increasingly more cherubic and childlike despite being at least 2 or 3 years old than Guts is, showing how Griffith hasn't bothered whatsoever to move past his infancy.

* ''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]] (heck, the Eclipse he triggers is basically one long, murderous tantrum), he still tries to pursue this fantasy, but in a much more ruthless and remorseless way. And to drive the whole point home, there's the fact that, as the series' ArtEvolution progresses, he's drawn to look increasingly more cherubic and childlike despite being at least 2 or 3 years old than Guts is, showing how the White Hawk hasn't bothered to move whatsoever from infancy.

* ''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 if him sacrificing his own mercenaries and raping Casca during the Eclipse (which is nothing but him throwing a murderous temper tantrum) drives the whole point home, then there's the fact that interestingly, as the series' ArtEvolution progresses, he's drawn to look increasingly more cherubic and childlike despite being implied to be older than protagonist Guts, showing how deeply infantile the White Hawk really is.

* Naoka Ueno in ''Anime/ASilentVoice''. Even though she is 18 years old, it's clear she retains her childish mindset from grade school. She ridicules and humiliates Shouko, throws temper tantrums when she doesn't get her way, doesn't take responsibility for her actions, and refuses to move on from her past friendship break up.

* ''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, not to mention that, as the ArtEvolution progresses, he's drawn to look increasingly more cherubic and childlike, emphasizing his childish nature even further.

* ''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, not to mention that the ArtEvolution makes him look increasingly more cherubic and childlike.