History EstablishingCharacterMoment / FanWorks

** During Kayaba's speech to the captive players at the start of the death game, he's AffablyEvil with his victims, makes movie references [[PopCulturalOsmosisFailure they don't get]] and has to quickly bring up media to make his points, and generally rambles and makes mistakes like accidentally muting himself. It's a pretty big hint that [[spoiler:he's not a villainous mastermind, but someone [[ExhaustionInducedStupidy loopy from sleep deprivation]] and desperately slapping together an "EvilPlan" to cover for the fact that he just discovered a game glitch that kills people.]]

* [[spoiler:Summer Rose]] [[MamaBear makes her personality quite clear]] with the very first words she says in her official debut. For context, Team RWBY has just been thoroughly wiped out by [[spoiler:Briar Breeze, the Maiden of Summer.]]
-->'''[[spoiler:Summer Rose]]:'''"Don't you touch her, you hot-headed ''[[PrecisionFStrike bitch]]."''

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* ''Fanfic/CrimsonAndEmerald''
** Hawks shows himself to be proactive as he goes to Hosu to help the local pros capture Stain out of his own volition. He then shows himself to be a cautious ReasonableAuthorityFigure as he listens to Tokoyami's concerns that his classmate might be in danger when Tokoyami is sent his classmate's coordinates without explanation. Hawks worries that Tokoyami's might be hurt or being attacked so he accompanies Tokoyami to classmate's coordinates.

* ''Fanfic/PerfectionIsOverrated''

** Shizune kills [[spoiler:the defenseless Toki]], and then immediately prays that she hopes her victim goes to Hell.

* ''Fanfic/{{Essence}}'': Ash arrives at Professor Oak's lab 30 minutes early. This shows his dedication and excitement at becoming a Pokémon trainer. When he meets Growlithe, he calmly decides to stare it in the eyes and get on eye-level with it, which shows Growlithe that he wants respect and views it as a partner, not something to look down upon. Growlite likes Ash's compassionate nature.

[[AC:''Franchise/{{Danganfonpa}}'']]

* ''Fanfic/MassEffectHumanRevolution''

* Claymade's sequel to ''FanFic/TheDarkLordsOfNerima'' introduces the new BigBad by having him casually defeating an assassin trying to kill him (that he had hired himself), who had already easily torn through his security forces.

* In the ''Anime/GirlsUndPanzer'' and ''{{Manga/Saki}}'' crossover, ''Fanfic/NecessaryToWin'', which can be found [[https://www.fanfiction.net/s/10130193/1/Necessary-To-Win here]], there are quite a few.

* Being a crossover between two popular series (Manga/RanmaOneHalf and Anime/SailorMoon), ''FanFic/FistOfTheMoon'' has characters that the audience already knows, but their establishing moments for each other are quite potent.

* The first episode of ''[[FanFic.ChristianWestonChandlerInSurvivorKujiraJima Christian Weston Chandler in Survivor: Kujira-Jima]]'' gives moments to most of the cast:
** The [[IntroDump introductory scene]], while nominally one for everyone, is especially one for [[BasementDweller C]][[CasanovaWannabe h]][[FatIdiot r]][[HairTriggerTemper i]][[UnsympatheticComedyProtagonist s]], who harasses the other castaways throughout the whole sequence.

-->'''Jude:''' Clowns to the left of me. Degenerates to the right.

[[AC:''Franchise/DanganRonpa'']]

* In FanFic/JusPrimaeNoctis the readers already know Louise's character, but she gets an in-universe one for [[spoiler: Saito's mother Ayako]] when she's the only one to stop Ayako from beating up her son.

* In ''FanFic/ChristmasWithACorduroy'': Lynda Pines is established as a [[{{Jerkass}} mean-spirited]] and [[NervousWreck neurotic woman]], when she flips out at Wendy for leaving a mud stain on the floor, instead of ,you know, welcoming a guest into her house.

* ''FanFic/QueenOfShadows'': Each of the Oni Generals, as well as each of [[HeroAntagonist Lord Rokutaro's]] inner circle, get their general personalities made quite clear within their first scenes.

[[AC:''Anime/MaiHime'']]
* ''Fanfic/PerfectionIsOverrated''
** Hitomi uses her MindControl powers to rob people, and is quickly getting bored with how easy it is.
** Toki expresses her intent to change the past to get together with Hayate, without being able to adequately describe what Hayate means to her.
** Shizune kills [[spoiler:the defenseless Toki]], and then immediately prays that she hopes her victim goes to Hell.

* In ''Fanfic/WhatAboutWitchQueen'', Prince Ferdinand is established as a good counterpart to Hans and a honorable man when he apologizes to Anna for his brother's actions. The same scene, moments earlier, also sets him up as borderline {{Adorkable}} with his inability to form the apologies coherently:

** [[SadClown Jaune]] is introduced several sentences later, when he comforts Pyrrha and makes her laugh ([[{{Adorkable}} at his expense]]) despite that.

* In the second chapter of ''Fanfic/HopeForTheHeartless'', an unnamed girl gazes at the moon, remembering one of the fairytales she loves. It leads her to wonder how the deceased [[TheDreaded Horned King]] could have become the monster he was known as. Despite herself, [[SympathyForTheDevil she finds herself pitying the warlord with all her heart]]. This girl turns out to be [[PurityPersonified Avalina]] and she becomes the [[ResurrectedForAJob resurrected]] Horned King's MoralityPet.

* [[DemonSlaying Nat's]] first introduction in ''Fanfic/TheUltimateEvil'' includes her attacking a demon that's about to eat its victim, killing it without mercy with her [[WalkingArsenal various weapons]], calling an ambulance, leaving the spot, taking an interest in the reports of Jackie's encounters with the Demon Sorcerers and deciding to do a little "clean up".

* As soon as [[KnightTemplar Commander Hildread]] first appears in ''Fanfic/LovedAndLost'', she makes her arrogance and hatred toward Shining Armor crystal clear before she proceeds to beat up the former captain with sadistic pleasure in his cell. Her {{Foil}} and subordinate [[MinionWithAnFInEvil Lieutenant Shackle]] in turn acts like a professional guard toward the imprisoned heroes before the appearance of her commanding officer whose orders she nervously follows. She also turns her pitying gaze away from Shining Armor's torture.

** The [[IntroDump introductory scene]], while nominally one for everyone, is especially one for Chris, who harasses the other castaways throughout the whole sequence.

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[[AC:''Disney/{{Frozen}}'']]

[[AC:''Anime/Yu-Gi-Oh!'']]

[[AC: ''Manga/{{Bleach}}'']]

[[AC: ''Series/BuffyTheVampireSlayer'']]

[[AC: ''Franchise/DanganRonpa'']]

[[AC: ''Anime/MaiHime'']]

[[AC: ''VideoGame/StarWarsTheOldRepublic'']]

[[AC: ''Franchise/{{Superman}}'']]

[[AC:ComicBook/XMen]]

--> Usagi: “We know her, Mars. She rescued three children and two senshi, putting her life on the line. We know her very well.”

* In the second chapter of ''Fanfic/HopeForTheHeartless'', an unnamed girl gazes the moon, remembering one of the fairy tales she loves. It leads her to wonder how the deceased [[TheDreaded Horned King]] could have become the monster he was known as. Despite herself, [[SympathyForTheDevil she finds herself pitying the warlord with all her heart]]. This girl turns out to be [[PurityPersonified Avalina]] and she becomes the [[ResurrectedForAJob resurrected]] Horned King's MoralityPet.

* ''Fanfc/WhereTalentGoesToDie''

** [[HarryPotter Dumbledore]] is introduced [[ATasteOfTheLash whipping a student]] [[KickTheDog for praying]], establishing himself as close to an aversion of DesignatedVillain as most of the fic's cast gets.