History Characters / HarryPotterAnimalsAndPets

'''[[Characters/HarryPotterTheTrio The Trio]]''' ([[Characters/HarryPotterHarryJamesPotter Harry James Potter]] | [[Characters/HarryPotterRonBiliusWeasley Ron Bilius Weasley]] | [[Characters/HarryPotterHermioneJeanGranger Hermione Jean Granger]])\\

* HeroicSacrifice: He takes a Killing Curse for Dumbledore in ''Order of the Phoenix.'' Since he's a phoenix, he gets better.

* HeroicSacrifice: He takes a Killing Curse for Dumbledore in ''Order of the Phoenix.'' [[spoiler:Since he's a Phoenix, he gets better.]]

* SacrificialLamb: She's the first character to get petrified by the Basilisk in ''Chamber of Secrets''.

* LovableCoward: Fang's as nice as can be, but when faced with a cloaked figure drinking from a unicorn's corpse, he will not stay by your side. He ''will'', however, attack an Auror for Hagrid.

* WhatHappenedToTheMouse: Whether or not Fang survived the battle of Hogwarts is unknown. As Hagrid showed no signs of mourning over him, it's presumed he's alive, though there has been no actual word on it. He's definitely [[ForegoneConclusion dead]] after the nineteen year timeskip, though, unless he has hitherto unmentioned magical abilities.

[[Characters/HarryPotterTheWeasleyFamily The Weasley Family]] | [[Characters/HarryPotterMinistryOfMagic Ministry of Magic]]\\

* SatelliteLoveInterest: In ''The Crimes of Grindelwald'', she has little to do other than giving Credence emotional support during his journey to find his family. [[spoiler:However, it seems to be subverted by the end, since she does not join him to follow Grindelwald, instead staying with the heroes.]]

* AmbiguousSituation: How exactly did she go from somewhat decent woman to an animalistic monster serving Voldemort? Was this something that she did willingly, or was she brainwashed by him? Or did her mind regress to an animalistic state where she's little more than a tool?
* {{Animorphism}}: Nagini is a Maledictus, an individual who has a genetic anomaly that allows them to transform into an animal (in Nagini's case, it's a snake). What separates them from an Animagus is that the transformation will eventually and irreversibly become permanent.

* InvoluntaryShapeshifting: Nagini can still control her transformation into a snake in the 1920s, but the ultimate fate of a Maledictus is that they will eventually become a beast for the rest of their life, which Nagini undergoes by the time of the ''Harry Potter'' series.

* MercyKill: When we first meet Nagini in the 1920s she’s a human woman suffering from a genetic condition that will ultimately turn her into a full snake yet willing to fight against Grindelwald in the First Wizarding War. By the time we meet her again during the 4th book of the main series not only has she permanently become a snake but has been reduced first to Voldemort’s personal “pet” and then his personal soul vessel most likely against her will (as the books hint that despite her condition Nagini managed to retain at least a little of her human intelligence). One could make the argument that being decapitated by Neville Longbottom in the 2nd phase of the Battle of Hogwarts was the kindest thing anyone could’ve done for her ever since the transformation became permanent.

* OffWithHerHead: Gets beheaded by Neville with the Sword of Gryffindor in the Battle of Hogwarts. When it’s latter revealed that she was once human permanently transformed into a snake it’s now seen as a MercyKill.

* ReptilesAreAbhorrent: Nagini acts like a straight-up horror villain in Book 7.
* RightHandAttackDog: Voldemort will frequently injure people and leave Nagini to finish them off and consume the remains. It’s unclear if that is by Nagini’s own will, a snake’s instincts, or Voldemort’s usage of Parseltongue to compel her to do so.

* TookALevelInJerkass: Goes from a kind and goodhearted witch who opposes Gellert Grindelwald himself to a murderous serpent who wholeheartedly and sadistically supports the even worse dark wizard Lord Voldemort. Downplayed slightly as its unknown just how much “humanity” Nagini had left in the end.

* WasOnceAMan: As revealed in ''Film/FantasticBeastsTheCrimesOfGrindelwald'', she was formerly a human witch. She is a Maledictus, having inherited a curse from her mother that led to her eventual and [[ShapeshifterModeLock permanent transformation]] into a snake.

* WhatHappenedToTheMouse: Hermione doesn't take him on the Trio's journey in ''Deathly Hallows''. Crookshanks' last appearance in the series is at the Burrow, a few days before Bill and Fleur's wedding, so it can be assumed he stayed there during the events in the rest of the book.

* TheDreaded: With the exception of roosters and the Heir, everyone is terrified of her. [[HorrifyingTheHorror Even]] ''[[HorrifyingTheHorror Acromantulas]]'' [[HorrifyingTheHorror refuse to speak of her]].

* WouldHurtAChild: Its victims are all young children.

* WasOnceAWoman: As revealed in ''Film/FantasticBeastsTheCrimesOfGrindelwald'', she was formerly a human witch. She is a Maledictus, having inherited a curse from her mother that led to her eventual and [[ShapeshifterModeLock permanent transformation]] into a snake.

* DarkAndTroubledPast: Nagini was forced to work in a [[TheFreakshow freakshow]] under a ruthless and abusive owner. Having had enough, she ran away with Credence, [[spoiler:only to lose him when he decided to choose Grindelwald's side, which she refused to do. And of course, being a Maledictus meant that she eventually turned into a snake decades later.]]

* WasOnceAMan: As revealed in ''Film/FantasticBeastsTheCrimesOfGrindelwald'', she was formerly a human witch. She is a Maledictus, having inherited a curse from her mother that led to her eventual and [[ShapeshifterModeLock permanent transformation]] into a snake.

* TropeyComeHome: Halfway through POA, Scabbers goes missing and is presumed dead, devastating Ron.

Voldemort's pet snake from book four onwards, ready to kill and eat any who threaten her master. She appears in the ''Fantastic Beasts'' series starting with the second instalment, in a time in which she can still control her transformation. She's revealed to be a Maledictus, a carrier of a blood curse that will eventually turn her to a snake permanently.[[note]]This was apparently meant to be introduced in the last book since "Curse of Nagini" was trademarked by WB in 2005 after Rowling gave them a list of rough titles. For whatever reason, it didn't make the final product.[[/note]]

* [[TheDogWasTheMastermind The Rat was the Mastermind]]: Well, not a mastermind, [[spoiler:but it turns out that Scabbers was the main antagonist of ''The Prisoner of Azkaban'', a very much alive Peter Pettigrew who framed Sirius for his crimes.]]

The Weasleys' communal rat who is [[spoiler: actually Peter Pettigrew]]. he's handed down to Ron much to his embarrassment.

* DemotedToExtra: He appears much less after his first appearance.
** does appear in the film adaptation of ''Prisoner of Azkaban'', but his role in befriending and helping Sirius, as well as going after [[spoiler: Scabbers/Pettigrew]] is strangely AdaptedOut. This is likely due to his decline in prominence after said book.

* WhatHappenedToTheMouse: He completely disappears after the fourth book.

* WhatHappenedToTheMouse: After he leaves Hogwarts, he’s never seen or heard from again.

* ItWasHisSled: It’s hard to talk about him [[spoiler: without bringing up who he actually is]].

The Weasleys' communal rat; he's handed down to Ron much to his embarrassment.

* DemotedToExtra: He does appear in the film adaptation of ''Prisoner of Azkaban'', but his role in befriending and helping Sirius, as well as going after Scabbers/Pettigrew, is cut out.

* MercyKill: When we first meet Nagini in the 1920s she’s a human woman suffering from a genetic condition that will ultimately turn her into a full snake. By the time we meet her again during the 4th book not only is she permanently a snake but has been reduced first to Voldemort’s personal “pet” and then his personal soul vessel against her will (as the books hint that Nagini retains at least some retains some of her previous self’s intelligence). One could make the argument that being decapitated by Neville was the kindest thing anyone could’ve done for her ever since the transformation became permanent.

* OffWithHerHead: Gets beheaded by Neville with the Sword of Gryffindor in the Battle of Hogwarts.

* RightHandAttackDog: Voldemort will frequently injure people and leave Nagini to finish them off and consume the remains.

* TookALevelInJerkass: Goes from a kind and goodhearted witch who opposes Gellert Grindelwald himself to a murderous serpent who wholeheartedly and sadistically supports the even worse dark wizard Lord Voldemort.

* BadassBaritone: As befits his giant size and authoritative nature, he has Julian Glover's famous commanding voice.

* BerserkButton: He doesn't take kindly to [[BullyingADragon Malfoy calling him a "great ugly brute"]]. It's a Hippogriff thing. Go up and insult one, it'll probably be the last thing you'll ever do.
** Don't attack Harry in front of him, either. He very nearly kills Snape for (seemingly) doing that.

* NoSell: Hermione blindsides her with Stupefy in ''Deathly Hallows Part 1'', but Ron's desperate casting against her dissipates on impact in ''Part 2''. In the book, Voldemort cast a protective aegis to see her through the final battle unscathed; in the film, while Voldemort still made mention of keeping her safe, this visual indicator was omitted in favor of the implication that [[spoiler:her status as a horcrux]] has rendered her immune to such mundane methods of killing.