History OneSceneWonder / WesternAnimation

* ''WesternAnimation/TaleSpin'': The last Cape Suzette Air Force pilot to get shot down in "Last Horizons" is only onscreen for a minute, but makes a good impression with his incredible piloting skills.

* ''WesternAnimation/TaleSpin'' has many one-shot guest star characters who are popular with the fans.

* For one short scene in ''WesternAnimation/SuperHeroSquad'', Ray Stevenson reprises his role from the movie as ComicBook/ThePunisher, who lets the entire Squad crash in his van for as long as they can stand it. HilarityEnsues as he goes on a Frank Miller-esque monologue.

* From ''WesternAnimation/ThePowerpuffGirls'', two words: Rowdyruff Boys. From ONE episode came a raging torrent of fanfics, raging internet debates, and impassioned pleas to Creator/CraigMcCracken to bring them back, nearly all of them [[MisaimedFandom completely missing the point]] of what the Boys were about. (What they were about: Fight, fight, fight, gross out, fight some more. The Mayor had more depth than that.) And when [=McCracken=] finally gave in and brought them back, ''they hardly changed at all!'' To this day they're some of the most popular PPG supporting characters EVER (even having a dot-net website), despite being essentially just a more powerful and vicious Gang Green Gang.

* Freakazette of ''WesternAnimation/{{Freakazoid}}'', at least according to [[WebVideo/FamiliarFaces CR]] of Website/YouTube and Website/ThatGuyWithTheGlasses (as seen [[https://www.youtube.com/watch?v=dGhYS599xZw here]]). She only appears in about four seconds of an introductory song, but never in the show. CR rags on the creators for never doing anything with the character after putting her ''in a spotlight on top of giant letters spelling her name.'' Yeah, ViewersAreMorons for thinking that she'd actually be in the show, right? [[note]]She was going to appear in a later episode of the series titled "Enter Freakazette!", but it was cancelled before that could happen (thus leaving the script unproduced)[[/note]]

** Joni West seems to be this, in fact she was so loved that she returned in The Lost Web Series

* The inhabitants of the [[TrueNeutral Neutral Planet]] appear in only one episode of ''WesternAnimation/{{Futurama}}'', but their "neutral humor" was a particular favorite of the fans and producer David X. Cohen. A Website/YouTube video of his "I have no strong feelings one way or the other" line has over 600,000 views, but the likes & dislikes are split exactly 50/50.

* In ''WesternAnimation/TurtlesForever'', Tohka and Razar, the duo of {{Ensemble Darkhorse}}s from the ''Film/TeenageMutantNinjaTurtles'' films appears...for all of five seconds as part of the '03 Shredder's Mutant army.

** Creator/JonathanFrakes (or rather his bottled head) appears in the Star Trek parody/homage episode just long enough for ''one line''. And yes, it really is Frakes' voice. That's [[DoingItForTheArt dedication]] for you.

** Vampire Susan and Mary, especially among the anti-''Literature/{{Twilight}}'' fans. The gothic dresses they wear, and their creepy, yet charming dialogue helps.

** Frank Grimes was only in one episode too -- he died. But he's been mentioned many times since, with a RunningGag where Homer forgets that he's dead, and his son (Frank Grimes, Jr.) is a villain in "The Great Louse Detective".

* In the Franchise/{{DCAU}}, there is a show called ''[[WesternAnimation/BatmanTheAnimatedSeries The New Batman Adventures.]]'' In that show, there is an episode titled "Beware the Creeper". And in that episode, [[http://il.youtube.com/watch?v=7T8y3Af3dH0 there is a scene where the Creeper, in all his yellow-skinned, manic glory, gleefully barges into a clothing store in search of a new costume.]] Everyone in the store runs away screaming...except for [[SuperStoicShopkeeper a clerk who remains completely, utterly stoic]] (making [[DeadpanSnarker deadpan comments]] the whole way) as she helps him pick an outfit and passes him through. And she was called: [[FanNickname "Thriftie".]]

* ''WesternAnimation/TinyToonAdventures'' had Julie Bruin. In one very short toon, yet memorable for [[JiggleShow perhaps unwholesome]] reasons, as well as being a spoof of her voice actor, Julie Brown.

** [[http://youtu.be/NSioqk5Gw28 MOAR Krabs]] appears for only a flash second, and it becomes an instant [[MemeticMutation meme]]

* ''WesternAnimation/TinyToonAdventures'' had Julie Bruin. In one very short toon, yet memorable for [[{{Gainaxing}} perhaps unwholesome]] reasons, as well as being a spoof of her voice actor, Julie Brown.

** Can also go for accessories. At one point in the three-part premiere, Optimus and Megatron are fighting on top of a dam. Optimus transforms his arm into a [[AnAxeToGrind glowing energy ax]]. Megatron transforms his into a [[EpicFlail glowing energy morningstar]]. They battle for a minute or two, before Megatron leaves by spinning his morningstar in the air and flying off as if it's a helicopter propellor. These weapons are never seen again. You'd think it'd be a BigLippedAlligatorMoment, but it's so hugely memorable that there have been homages to it ever since, popping up in toys and comics often. It's almost certainly the reason ''WesternAnimation/TransformersAnimated'' Optimus has [[AnAxeToGrind an axe]] as his main weapon.

* For one short scene in ''Super Hero Squad'', Ray Stevenson reprises his role from the movie as ComicBook/ThePunisher, who lets the entire Squad crash in his van for as long as they can stand it. HilarityEnsues.

* ''Franchise/TransformersGeneration1'' has a ton of these due to LoadsAndLoadsOfCharacters [[MerchandiseDriven needing to be sold]] and not loads and loads of time. Some characters make very memorable appearances that are sadly rare and brief. Sixshot, for example, is introduced by Galvatron as a 'one-robot army,' proves it by taking out '''the entire Aerialbot team singlehandedly,''' earning his name by using each of his then-unprecedented six transformations to do it, and is then not seen again.