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[[quoteright:332:[[Manga/FullmetalAlchemist http://static.tvtropes.org/pmwiki/pub/images/tumblr_2_9687.jpg]]]]

A cute little pet sidekick whose emotions and reactions are closely synchronized with their keeper. The pet serves the function of the traditional ''zany'' from the ''CommediaDellArte'', aping their human's reactions, and frequently revealing attitudes that the main character may be keeping hidden.

When alone, the character could also [[SurrogateSoliloquy talk with this pet]], treating them as a [[TheConfidant separate person]] with the knowledge that would make the pet an extension of the owner's personality.

Related to ExpressiveAccessory, which is the garment version of this trope. Not to be confused with a MoralityPet, which is a character that redeems a villain or dark anti-hero. Compare LoyalAnimalCompanion who may lack this empathy despite their devotion to their owner. {{Mons}} may act in this role, especially the main character's.

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!!Examples:

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[[folder: Anime and Manga ]]

* Guvava from ''Anime/{{Macross 7}}'' (→ Mylene)
* Q-chan, a holograph resembling a floating blob, from ''Anime/{{Vandread}}'' (→ Misty Cornwell)
* Melpo in ''Anime/YesPrettyCure5 GO!GO!''. (→ Syrup)
* ''Manga/FullmetalAlchemist''
** Xiao-Mei for Mei-Chan, to the point that Xiao-Mei also mimics the girl's ''movements''. Added fun for being named "Little Mei" after its owner, Mei of Chan clan.
** Black Hayate → Riza Hawkeye. Like his master, he is quiet, cute, and has a whole lot of persistence and courage packed into a small frame (witness his attack on Gluttony when the latter has Riza cornered).
* Puu from ''Manga/YuYuHakusho'' (→ Yusuke). Justified because he is a representation of Yusuke's soul or 'inner self'. Yusuke is a delinquent and Puu is an affectionate stuffed animal.
* Maya from ''Manga/AzumangaDaioh'', though he shows up much later in the series than most (→ Sakaki)
* Happens in the ''Anime/{{Pokemon}}'' anime a fair deal, but the Mime Jr. species is particularly notable - its very nature means it ''exactly'' duplicates the gestures and expressions of its owner. The fact that one of the main characters happens to own one helps show this.
* ''Manga/OnePiece'': Chimney's Bunny/Cat thing Gonbe. He's probably the most literal example being a second Chimney in every way. He mimics her movements, facial expressions, and even his growls/mews/whatever-the-hell sound he makes are the same number of syllables as every one of Chimney's statements.
* Boogie-kun from ''Manga/{{Karin}}'' (→ Anju) clearly reflects his master's thoughts, even the ones she resents having.
* ''Manga/ZeroSevenGhost'' takes this trope to a whole new level: Not only is Burupya Teito's certified empathy pet as he is also [[spoiler:Mikage's incarnation. Thus making this cuter than cute dragon a mix of pet and best friend, bonus points for the HeroicSacrifice involved]].
* Yumekichi the monkey (→ Keiji) in ''VideoGame/SengokuBasara'' often mimics his master's actions and serves to reflect his true emotions when he enters StepfordSmiler mode.

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[[folder: Comic Books ]]

* Old Lace from ''ComicBook/{{Runaways}}'' is telepathically bonded to Gert [[spoiler:and after her death to Chase]].
* ''ComicBook/{{X-Men}}'':
** Kitty Pryde's dragon Lockheed.
** Doctor Nemesis of ''X-Club'' gets stuck with one after a telepathic starfish [[HeadPet bonds to his head]]. Said starfish broadcasts his thoughts, which he first discovered when the starfish revealed that Nemesis [[MaleGaze often admires his co-worker Doctor Rao's "shapely behind" (while Doctor Rao is standing right next to him).]] The starfish later reveals that Nemesis is jealous of Cyclops' cool costume. It also reveals that while Nemesis doesn't think too highly of his co-worker Jeffries' scientific methodology, he ''does'' crave his friendship. Nemesis understandably wants said starfish gone as soon as possible. [[spoiler: At the end of the series he keeps it because he "[gets] lonely without it."]]
* ''ComicBook/GreenLantern'': Hal Jordan had a pet alien starfish named Itty in his space trucker days.
* Bob the Insecticon serves as this in IDW's ''[[ComicBook/TheTransformersIDW Transformers]]'' comics for Sunstreaker. This leads to a CrowningMomentOfHeartwarming when Sunstreaker is feeling rejected and sad and Bob curls up next to Sunstreaker and comforts him.
* Tank in ''ComicBook/MyLittlePonyMicroSeries'' Issue #2 , even just holding his flag to cheer on Rainbow when the rest of town has given up hope.
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[[folder: Film ]]

* Salacious Crumb from ''Film/ReturnOfTheJedi'' (→ Jabba; for those who don't recognize the name, he's the little "Oh, OHH hohohohohoho!" guy)
* Franchise/DisneyAnimatedCanon examples:
** ''Disney/{{Aladdin}}'':
*** Abu → Aladdin for the theiving and points out his LoveAtFirstSight with Jasmine.
*** Rajah → Jasmine. Watch his reaction to the Sultan talking about the betrothal.
** ''Disney/{{Pocahontas}}'':
*** Meeko and Flit (→ Pocahontas) act out her IWantSong while she sings it.
*** The villain, Ratcliffe, also has one, a pug named Percy, who does a HeelFaceTurn and joins the good guys. Percy, while he is ''meant'' to be an EmpathyPet, doesn't exactly share much in personality with Ratcliffe. All they really have in common is a preference for the finer things in life.
** Djali from ''Disney/TheHunchbackOfNotreDame'', who was from the ''original book'' (→ Esmeralda). With the gypsy 'magic' and the timely rescue at the gallows, one could be forgiven for thinking the goat was her {{familiar}}.
** Pegasus from ''Disney/{{Hercules}}'', was given to Hercules at birth and then accompanied him during all his adventures. It's expected he would know the boy better than he knows himself.
* The dog and cat from ''Film/SwingTime'' (→ the Watsons)
* In ''Film/{{Maleficent}}'' , Diaval can be considered this, especially in the scene where he tells Maleficent about the christening. She doesn't show emotion, while he displays the emotion she ought to feel.

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[[folder: Literature ]]

* Although it would be in the worst taste to label them as "pets", Dćmons (animal avatars of a person's [[OurSoulsAreDifferent soul]]) in the ''Literature/HisDarkMaterials'' trilogy often serve this purpose to their person. Will is disturbed by the idea that someone could learn so much about him just by looking at the animal that follows him around but Lyra, who is used to this sort of thing, says that means his daemon would be an animal that looks like another animal.
* ''Literature/ASongOfIceAndFire''
** The direwolves belonging to the Stark children seem to be capable of feeling the same emotions as their owners. Normally they are capable of discerning whether or not a character is to be trusted but there have been a few instances where the wolves acted aggressively towards a character their owner had been angry at, even if they were trustworthy.
** [[spoiler: Daenerys's dragons]] seem to be empathic as well.
* Dairine from the ''Literature/YoungWizards'' series has a telepathic link with [[MagicalComputer her sentient laptop]], so it makes some sense that he reflects her moods. Exactly ''how'' Spot can do this without a face is a bit of a mystery, but he manages.

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[[folder: Tabletop Games ]]

* The concept of {{Familiar}}s from ''TabletopGame/DungeonsAndDragons''. They are bonded animals that share their partners adventures and trials etc.
* Muses from ''TabletopGame/EclipsePhase'' can fulfill this function. They are [=AIs=] given to transhumans at an early age which remain with them for the rest of their lives. They are designed to help people navigate the ocean of data that is integral to transhuman society, as well as be a confidant, companion, personal assistant, therapist, technical support, researcher, translator, and whatever else the individual may need.

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[[folder: Video Games ]]

* Alice's dolls in the ''VideoGame/{{Touhou}}'' series.
* The dog in ''VideoGame/FableII'' can be trained to act like this.
* During the second chapter of ''VideoGame/TheWorldEndsWithYou'', a pink squirrel-like creature becomes this to Beat. It turns out to be [[spoiler:[[CameBackWrong his sister Rhyme, revived in the only form he was capable of bringing her back in]].]]
* Nanomachine from the VideoGame/GalaxyAngel gameverse (→ Vanilla)
* Cupil from ''VideoGame/SkiesOfArcadia'', who also acts as an EmpathicWeapon (→ Fina)
* Popoi when he's with Ms Accord in ''VideoGame/PuyoPuyo''
* The Archimedes misc item in ''VideoGame/TeamFortress2'' mirrors the Medic's facial expressions, in a cute, birdy kind of way.
* ''VideoGame/PokemonConquest'': Warlords with their Perfect Link Pokémon are accompanied by said Pokémon in cutscenes, whose emotions mimic those of their Warrior.

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[[folder: Webcomics]]

* The cat on Ian's head in ''Webcomic/MacHall''.
* Chester in ''Webcomic/CollegeRoomiesFromHell'' (→ Dave). Of course, he ''does'' have half of Dave's soul, making it a JustifiedTrope.
* Lita, Zii's cat in ''Webcomic/MenageA3''.
* In their definitions Ryuu-Nekos from ''Webcomic/{{Dreamkeepers}}'' are described as having this as an attribute when they bond with or are tamed by their owners in addition to the personality quirks already present in their breed.

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[[folder: Western Animation ]]

* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'': Rarity's cat Opalescence is shown hissing and growling at a set of ugly dresses Rarity made, even as Rarity herself tries to pretend that they are fine.
* An episode of ''WesternAnimation/KingOfTheHill'' revolves around Hank's dog Ladybird being uncharacteristically aggressive to a black man, causing Hank concerns that he might be racist. [[spoiler:He's not. Lady was aggressive because the guy was a repairman, and Hank hates repairmen.]]

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[[folder: Real Life ]]

* The concept is TruthInTelevision; some animals react very markedly to the emotions of their keeper and sometimes others. Though like everything else, fiction obviously exaggerates the effects.

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