History LoveAtFirstSight / WesternAnimation

* ''WesternAnimation/AThousandAndOneAmericas'': Chris often falls in love with the girls he meets in his dreams as soon as he sees them: Alicora in the first episode, Papalotl in the fifth, and Tiau in the eighth. Notably, with Papalotl the crush is mutual. In the real world, however, he already has a LoveInterest (his classmate Monica, who's introduced in the twelfth episode).

* 'WesternAnimation/LiloAndStitchTheSeries'': Stitch falls in love with [[DistaffCounterpart Experiment 624]], also known as Angel, in "[[Recap/LiloAndStitchTheSeriesS1E30Angel Angel]]" when he first meets her face-to-face. She actually intended for him to react this way so she could use him to find reformed experiments and convert them to evil, but LoveRedeems as she develops feelings for him in return over the course of the episode.

** It's implied that Ron's feelings for Kim stem back to their childhood, possibly when they first met back when they were in preschool.

** The very first episode of the series has a few as all the contestants are being introduced, foreshadowing some of the relationships to develop over the season. [[PerkyGoth Gwen]] blushes a little when [[ChickMagnet Trent]] (who clearly takes interest in her too) comes next to her; [[SurferDude Geoff]] lights up and eagerly introduces himself when [[GranolaGirl Bridgette]] comes over; and [[{{Nerd}} Harold]] is awestruck by [[SassyBlackWoman Leshawna]] when she arrives and expresses it in his own awkward kind of way.

* [[Franchise/LiloAndStitch Stitch]] falls in love with [[EnthrallingSiren Experiment]] [[DistaffCounterpart 624]], also known as Angel, in the ''WesternAnimation/LiloAndStitchTheSeries'' episode "[[Recap/LiloAndStitchTheSeriesS1E30Angel Angel]]" when he first meets her face-to-face. She actually intended for him to react this way so she could use him to find reformed experiments and convert them to evil, but LoveRedeems as she develops feelings for him in return over the course of the episode.

* Yakko, Wakko, and Dot’s defining trait in ''WesternAnimation/{{Animaniacs}}'' is that they immediately fall for any attractive person of the opposite gender.
* ''WesternAnimation/AvatarTheLastAirbender'':
** It's implied, and later confirmed by 'Avatar Extras,' that Aang fell for Katara when he first saw her after being freed from the iceberg. However he doesn't seem to recognise his feelings as romantic until episode 9.
** And Sokka for Yue, though that may very well have been mutual.
** Avatar Kuruk fell in love with Ummi at first sight, and Avatar Roku falls in love with Ta Min the same way.
* ''WesternAnimation/TheLegendOfKorra'':
** According to Shiro Shinobi, Korra fell in love with Mako the moment she saw him.
** Bolin explicitly tells Korra he fell for her the moment he saw her. [[EstablishingCharacterMoment The first time we see him]] was him [[FunnyBackgroundEvent spotting Korra across the room]] and smoothing back his hair, and immediately after he walks up to her he starts implying to Toza that they are a couple (which Korra is quick to [[JustFriends correct]]).
** [[TallDarkAndSnarky Mako]] falls hard for [[UptownGirl Asami]] within seconds of their CrashIntoHello, as communicated by [[CardiovascularLove cartoon heart bubbles]].
** [[spoiler:Ultimately [[DeconstructedTrope deconstructed]]. None of the above relationships work out by the end of the series and each pair remains [[BetterAsFriends platonic partners]]. The only relationships that do work require work to keep it that way (Bolin and Opal) or build up based on preexisting, strengthening emotions that eventually become romantic (Asami and Korra).]]
* In the ''WesternAnimation/ChalkZone'' episode "The Crush", Rudy develops a crush on Queen Rapsheeba's creator, Trina, as soon as he sees her for the first time. Complete with a chorus singing, ''"Love at first sight!"''

* The first time Berry lays eyes on Bloo in ''WesternAnimation/FostersHomeForImaginaryFriends'' she goes wide-eyed and sees BishieSparkle around him. So begins her {{Yandere}}riffic love for him.

* Played with and blown to smithereens in ''WesternAnimation/InvaderZim'' with the advent of Tak (the not-so-hideous-new-girl), who manages to both [[ThrowTheDogABone endear herself to Dib]] and (accidentally) convince Zim she's in love with him. Cue [[InNameOnly Falling In Love Montage]] with Zim courting Tak, only to be violently rejected. Turns out, [[spoiler: she's a much-more-skilled Irken who's vowed revenge on Zim (and completely hates him). Naturally, she and [[TheChewToy Dib]] can't be friends either.]]

* Quack Quack and Eugly from ''WesternAnimation/{{Kaeloo}}'' fell in love with each other the moment they saw each other. In a very short time, they become an OfficialCouple.

* Although it's presented in a low-key way, it's pretty clear in ''WesternAnimation/{{Paperman}}'' that the man and the woman are smitten within seconds of seeing each other. [[spoiler: The ending sees them happily getting to know each other in a café.]]

* Happens when [[PrecociousCrush Ferb sees Vanessa]] for the first time in ''WesternAnimation/PhineasAndFerb.'' Isabella to Phineas (although we don't know ''[[NoodleIncident when]]'' it happened) is possibly the same case.

* One of the Ork bikers asks this to Velma in ''WesternAnimation/ScoobyDooMysteryIncorporated'' after she fixes one of their bikes. Velma, being the DeadpanSnarker, bluntly tells him that she doesn't find him attractive.

* In the ''[[WesternAnimation/TeenageMutantNinjaTurtles2012 2012 Teenage Mutant Ninja Turtles]]'' cartoon, Donatello falls in love with April O'Neil the instant he sees her.

* In ''WesternAnimation/VoltronLegendaryDefender'' [[spoiler:Pidge finally finds her brother, Matt,]] and when he is brought to the castle, he's instantly fallen for Allura. Even his vision turns heart-shaped.

* The first time Berry lays eyes on Bloo in ''WesternAnimation/FostersHomeForImaginaryFriends'' she goes wide-eyed and sees BishieSparkle around him. So begins her {{Yandere}}riffic love for him.

* In ''WesternAnimation/TheRaccoons'', Bert instantly falls for Lisa the instant he sees her. However, when he makes his big play professing his love, Lisa, caught off guard of a new friend going ''way'' too fast, unsuccessfully tries to gently cool his romantic aspiration for someone he just met. However, when she returns home, troubled at upsetting Bert, writes an affectionate letter later which lifts his spirits with the implied promise of a relationship that can develop in its own time.

* ''WesternAnimation/CodeLyoko'': Heavily implied with William, who shows a keen interest in Yumi from the first day he knew her, and later claims that he's ''always'' been in love with her.
-->'''Sissi:''' Have you been crazy about Yumi for a long time?\\
'''William:''' Forever.\\
'''Sissi:''' You've only been here for a couple of months!\\
'''William:''' Don't you believe in destiny with a capital D? Two people who have never met, but are made for each other?
* Discussed in ''WesternAnimation/TheSimpsons'' episode "The Two Mrs. Nahasapeemapetilons" prior to Apu's ArrangedMarriage:
--->'''Apu:''' Manjula and I have not seen each other for 20 years. Two people cannot fall in love, sight unseen.\\
'''Moe:''' Hang on there. I'm counting in that.
** As shown in the episode "The Way We Was," Homer fell for Marge the first time he saw her.
* On ''WesternAnimation/JimmyTwoShoes'', [[BetaCouple Beezy and Saffi]] fall in love the moment they see each other.
* Happens when [[PrecociousCrush Ferb sees Vanessa]] for the first time in ''WesternAnimation/PhineasAndFerb.'' Isabella to Phineas (although we don't know ''[[NoodleIncident when]]'' it happened) is possibly the same case.
* One of the Ork bikers asks this to Velma in ''WesternAnimation/ScoobyDooMysteryIncorporated'' after she fixes one of their bikes. Velma, being the DeadpanSnarker, bluntly tells him that she doesn't find him attractive.
* ''WesternAnimation/HeyArnold'':
** The first time Helga truly meets Arnold at the age of three outside the Pre-K as he holds an umbrella over her head. Justified, as she puts all of her emotions and neglective parent's behavior into this one act of kindness. Word of God, however, states that they're meant to be.
** In "Arnold Visits Arnie" during Arnold's NightmareSequence Lulu falls in love with Arnold at first sight and so does Hilda with Arnie.

* ''WesternAnimation/KaBlam'': Henry for Dawn, a one-shot character from the episode "A Nut In Every Bite". Dawn is the granddaughter of Mr. Stockdale, who comes from Switzerland to visit the show. Henry falls for her almost immediately (much to June's dismay), but she doesn't quite share the love. However, he does manage to charm her... by hurting himself. At the end of the episode, Dawn goes back to Switzerland, but by this point Henry is actually relieved (he's hurt himself so much he's covered in casts and bandages, and bound to a wheelchair).
* Played with and blown to smithereens in ''WesternAnimation/InvaderZim'' with the advent of Tak (the not-so-hideous-new-girl), who manages to both [[ThrowTheDogABone endear herself to Dib]] and (accidentally) convince Zim she's in love with him. Cue [[InNameOnly Falling In Love Montage]] with Zim courting Tak, only to be violently rejected. Turns out, [[spoiler: she's a much-more-skilled Irken who's vowed revenge on Zim (and completely hates him). Naturally, she and [[TheChewToy Dib]] can't be friends either.]]

* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** In [[Recap/MyLittlePonyFriendshipIsMagicS1E1MareInTheMoon the first episode of the series]], Spike falls in love with Rarity the moment he first sees her.
** In "[[Recap/MyLittlePonyFriendshipIsMagicS4E13SimpleWays Simple Ways]]", Trenderhoof becomes utterly infatuated with Applejack within seconds of seeing her for the first time.
* Although it's presented in a low-key way, it's pretty clear in ''WesternAnimation/{{Paperman}}'' that the man and the woman are smitten within seconds of seeing each other. [[spoiler: The ending sees them happily getting to know each other in a café.]]
* In ''WesternAnimation/WinxClub'', two villains, Icy and Tritannus, meet each other in the prison of Andros. The two are instantly enamored with each other. Icy likes how Tritannus tried to assassinate his brother in order to become crown prince and Tritannus feels that Icy is the only one who gets him. When they break out, the two decide to take over the Magic Dimension together and become emperor and empress.

* In the ''WesternAnimation/ChalkZone'' episode "The Crush", Rudy develops a crush on Queen Rapsheeba's creator, Trina, as soon as he sees her for the first time. Complete with a chorus singing, ''"Love at first sight!"''
** Also happens to a lesser extent at the beginning of "Rudy's Story" when Rudy is watching Penny give her "What I Did On My Summer Vacation" report in front of the class, and is clearly shown to have a crush on her.
* ''WesternAnimation/StevenUniverse'' frequently address the concept, but always denying that it is ever as simple as actually being love at first sight. Every time the characters ''think'' they have fallen in love easily it is revealed that [[LovingAShadow they had no idea what they were really getting into]].
** In the episode "Love Letters", Jamie is rendered speechless at the sight of Garnet [[SexySurfacingShot emerging from the ocean]] and writes her a letter proclaiming his love and asking her out. Garnet turns him down--bluntly--and explains that love takes time and work and that love at first sight doesn't even ''exist''. You need to know one another, and Jamie literally has no idea who (Or ''what'') Garnet is.
** A flashback episode reveals that this is how Greg Universe and Rose Quartz met, but a different flashback episode [[{{Deconstruction}} deconstructs]] that. After getting together the two of them have fundamental issues because of how different they are, and they need to spend time understanding what they mean to themselves and each other before they can be happy together.
** "Last One Out of Beach City" has Pearl struck senseless by the 'Mystery Girl' when she walks into the same room, and she is so overcome that she is awkward and clumsy. However, in the next scene Steven--in a panic--[[ReplacementGoldfish points out how the Mystery Girl looks an awful lot like his mother, whom Pearl has spent millennia working and devotedly in love with.]]
* ''WesternAnimation/{{Doug}}'' fell in love with Patti the moment he saw her.
* In [[WesternAnimation/MiscellaneousDisneyShorts The Saga of Windwagon Smith]], Captain Smith is so love-struck when he first sees Molly Crum, the mayor's beautiful daughter, he absent-mindedly takes a bite out of his plate.
* Quack Quack and Eugly from ''WesternAnimation/{{Kaeloo}}'' fell in love with each other the moment they saw each other. In a very short time, they become an OfficialCouple.

* [[Franchise/LiloAndStitch Stitch]] falls in love with [[EnthrallingSiren Experiment]] [[DistaffCounterpart 624]], also known as Angel, in the ''WesternAnimation/LiloAndStitchTheSeries'' episode "[[Recap/LiloAndStitchTheSeriesS1E30Angel Angel]]" when he first meets her face-to-face. She actually intended for him to react this way so she could use him to find reformed experiments and convert them to evil, but LoveRedeems as she develops feelings for him in return over the course of the episode.
* Yakko, Wakko, and Dot’s defining trait in ''WesternAnimation/{{Animaniacs}}'' is that they immediately fall for any attractive person of the opposite gender.
* In the ''WesternAnimation/MiraculousLadybug'' episode "[[Recap/MiraculousLadybugS03E11Desperada Desperada]]", Adrien confesses that he's loved Ladybug "since the moment our eyes first met", although the OriginsEpisode implies that he ''realized'' it a few hours later (when he saw her defy Hawkmoth). Ladybug reciprocates his feelings, but the trope doesn't apply to her...perhaps because she was too angry when she first met him to make proper eye contact.

* In the ''WesternAnimation/MiraculousLadybug'' episode "[[Recap/MiraculousLadybugS03E11Desperada Desperada]]", Adrien confesses that he's loved Ladybug "since the moment our eyes first met", although the OriginsEpisode implies that he ''realized'' it a few hours later (when he saw her defy Hawkmoth). Ladybug reciprocates his feelings, but the trope doesn't apply to her...perhaps because she was too angry when she first met him to make proper eye contact. Or that her anger ''resulted'' from the trope, because she fell in love with someone she had wanted to hate...which would explain her later {{Tsundere}} antics.

* In ''TheRaccoons'', Bert instantly falls for Lisa the instant he sees her. However, when he makes his big play professing his love, Lisa, caught off guard of a new friend going ''way'' too fast, unsuccessfully tries to gently cool his romantic aspiration for someone he just met. However, when she returns home, troubled at upsetting Bert, writes an affectionate letter later which lifts his spirits with the implied promise of a relationship that can develop in its own time.

** [[TheCutie Zoey]] and [[{{Adorkable}} Mike]] (especially from Mike's side) have one in the very first episode of season 4.

** [[spoiler:Ultimately [[DeconstructedTrope deconstructed]]. None of the above relationships work out by the end of the series and each pair remains [[BetterAsFriends platonic partners]]. The only relationships that do work require work to keep it that way (Bolin and Opal) or build up based on preexisting, strengthening emotions that eventually become romantic ([[BiTheWay Asami and Korra]]).]]

** It's implied, and later confirmed by 'Avatar Extras,' that Aang fell for Katara when he first saw her after being freed from the iceberg.

* One example from each generation of campers in ''WesternAnimation/TotalDrama'': [[{{Goth}} Gwen]] and [[NiceGuy Trent]] in season 1 and [[TheCutie Zoey]] and [[{{Adorkable}} Mike]] (especially from Mike's side) in season 4.

* ''WesternAnimation/KipoAndTheAgeOfWonderbeasts'': From Benson introduction, there are little hints that he might be Kipo's love interest. This even gets to the point where she confesses to him, but he turns her down because he is gay.

* WesternAnimation/KimPossible on Eric and Eric on Kim in ''WesternAnimation/KimPossibleMovieSoTheDrama''. Well, she needed anyone except Ron ([[BrokenAesop because of the rules]]) and Eric [[spoiler:was a drone made to let Kim fall in love with him]].

* Discussed in ''TheSimpsons'' episode "The Two Mrs. Nahasapeemapetilons" prior to Apu's ArrangedMarriage:

** In the episode "Love Letters", Jamie is rendered speechless at the sight of Garnet emerging from the ocean and writes her a letter proclaiming his love and asking her out. Garnet turns him down--bluntly--and explains that love takes time and work and that love at first sight doesn't even ''exist''. You need to know one another, and Jamie literally has no idea who (Or ''what'') Garnet is.

** "Last One Out of Beach City" has Pearl struck senseless by the 'Mystery Girl' when she walks into the same room, and she is so overcome that she is awkward and clumsy. However, in the next scene Steven--in a panic--[[ReplacementLoveInterest points out how the Mystery Girl looks an awful lot like his mother, whom Pearl has spent millennia working and devotedly in love with.]]

-->'''Donatello:''' She's the most beautiful girl I've ever seen.
-->'''Raphael:''' Isn't she the ''only'' girl you've ever seen?
-->'''Donatello:''' My point still stands!
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'': In the first episode of the series, Spike falls in love with Rarity the moment he first sees her.

* One of the Ork bikers asks this to Velma in ''ScoobyDooMysteryIncorporated'' after she fixes one of their bikes. Velma, being the DeadpanSnarker, bluntly tells him that she doesn't find him attractive.