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  • 101 Dalmatian Street:
    • Among the pups, Dante is arguably the most popular outside of Dylan and Dolly thanks to his cool character design, hammy personality, and the fact that nearly every time he appears, it's a Funny Moment.
    • Fergus the fox seems to have a bit of a following as well.
    • Deja Vu is arguably the most popular out of Triple D, due to her kooky personality.
    • Da Vinci is a pup who only got spotlight in one episode so far. She got a lot of attention from the fans for being unique compared to the other pups. Her spotlight episode, “Doggie Da Vinci”, is arguably the most popular episode of the series by far.
    • Summer surprisingly got quite a cult following for a one shot character. She is hands down the most popular love interest of Dylan’s that the fans like to ship him with.
    • Deepak has his share of fans as well for a lot of the same reasons as Da Vinci.
    • Delgado has quite an impressive fan base. It could be largely because he’s a Handicapped Badass. He barely did a thing in the series. Rumors also suggest his popularity could come from his voice actor, Jack Binstead, since he was the one who announced the official US launch date of the series.
  • Action League NOW!: The Mayor, for his Large Ham personality.
  • The Adventures of Teddy Ruxpin: One of the Octopede Sailors, Xena, is well-liked by fans, despite her only having five lines in the entire series, likely because she was seen as a love interest by Grubby, one of the main characters.
  • Aladdin: The Series:
  • The Amazing World of Gumball:
    • Rachel Wilson, Tobias' sister. Despite only having one major role, being written out of the show due to the staff members disliking her, and being a jerkass to the other characters, Rachel remains very popular among the fandom; usually relating to her relationship with Darwin and her aforementioned disappearance.
    • Clayton, the ball of clay, is loved for his awesome abilities of shape-shifting.
    • Despite being a blatant Take That! against a Chinese commercial that had ripped off Gumball, Chi Chi's cute design and very meta origins have attracted his own fanbase, oddly enough.
    • Tina Rex is probably one of the more visually interesting characters on the show (being a realistic CG T. rex) not to mention having quite some Hidden Depths touched on during the first season, before she was Demoted to Extra from Season 2 onwards. At this point, she hasn't had a single character focus episode since the first season (whereas almost every other character has gotten a few) yet she is still popular with fans. The same applies to her father, and when he showed up in full in "The Routine", many fans loved that.
    • Gworp from "The Test". He only appears for a few seconds, but his voice, design, and randomness overall caused him to be a popular inside joke in the fandom.
    • Howdy, Frank, and Grady, the titular antagonists of "The Puppets", due to their creepiness as antagonists, the ambiguity surrounding whether or not they're truly alive, and having had Don't Hug Me I'm Scared alumni on-board in creating them. Given that the characters starred in shorts based upon them soon after their appearance, it's likely that writers knew this would be the case.
    • Some minor students, such as Josh and Jodie. They are as visually interesting as most characters in the show.
    • Yuki Yoshida, Masami's mother. Especially because her debut episode features an amazing anime-styled fight with Nicole.
  • American Dad!:
    • Principal Lewis, for being the most outrageous character other than Roger.
    • Greg Corbin and Terry Bates, the gay local news anchors.
    • Michelle, the worst lawyer in the afterlife, enough to cameo in the Series Fauxnale "Rapture's Delight".
    • Stelio Kontos.
    • Many people remember the Majestic, but that's mostly because of its theme song.
  • Amphibia
    • Fanart for Maddie exploded as soon as the character was introduced. Her popularity further increased when "Cursed!" established her as a good person in spite of her looks.
    • Wally is also pretty well liked by fans thanks to his silly and eccentric personality, and his presence ultimately leading to Anne meeting Sprig and ends up living with the Plantars. Fans grew to love him even more in his Day in the Limelight episode "Wally and Anne" and "Swamp and Insensitivity" with both episodes showing him form a sweet Intergenerational Friendship with Anne.
    • General Yunan, Scourge of the Sand Wars, Defeater of Ragnar the Wretched, aaaaand the youngest newt to ever achieve the rank of general in the great Newtopian Army, has gotten a huge amount of love thanks to her Large Ham nature, Blood Knight tendencies, and hamtastic portrayal by Zehra Fazal.
    • Maggie only appeared for less than a minute in the episode "Reunion" with only a handful of lines, but has received quite a bit of attention from fans. Fanart often portrays her as a sort of Sixth Ranger to the trio, or have her be stuck in Amphibia instead of Sasha or Marcy. She's also quite popular in memes, with Kao New Bing being memed to be her Trademark Favorite Food.
    • Mr. X acquired a great following after his debut episode. His eccentric yet menacing personality combined with his use of heelie shoes that contrast his sharp-dressed look made him a well-received and unique antagonist that fans wanted to see more of, despite him being only a secondary villain.
    • Both of Andrias's former friends Leif and Barrel quickly gained popularity among fans shortly after "The Core and the King". Part of the is because of their friendship dynamic being similar to the present Calamity Trio, and Leif and Barrel sharing many similarities with Marcy, which is very likely why the present Andrias wanted to befriend her.
      • Barrel is well liked because of his goofy Nice Guy personality; despite his tough guy appearance. It helps that he's voiced by none other than Jason Ritter, the voice actor of Dipper Pines from Gravity Falls. He ultimately becomes The Woobie of the group after he gets banished by his friend Andrias after his decent into darkness. So who doesn't want to give the poor guy a hug?!
      • Leif is loved by fans because she's a Nice Girl who loves all living things, and loves discovering new ways to interact with animals. Her selfless act to steal the Calamity Box to save Amphibia from destruction ultimately kick starts the events of the series. Even though it meant ending her friendship with Andrias and Barrel and getting exiled from Newtopia forever. After she Starting a New Life, it's revealed that she's also the founding member of the Plantar family home, and is Sprig, Polly, and Hop Pop's distant ancestor who help grant Leif's final wish to help Andrias redeem himself.
  • The Animals of Farthing Wood
    • Sinuous is loved for his design, as well as for his relationship with Adder. Even those who despise Season 3 find him to be one of the few redeeming qualities about it.
    • Friendly has his share of fans too. Even amongst those who find the foxes in general to be overrated.
    • Kestrel is very well-liked too, to the degree that many are annoyed at her unexplained disappearance in Season 3.
  • Animaniacs:
    • Naturally Pinky and the Brain, the biggest darkhorses in the show, who actually achieved Breakout Character status...
      "Gee, Brain! What you wanna do tonight?"
      "The same thing we do every night, Pinky. Try to Take Over the World!"
    • Slappy Squirrel has a lot of fans due to being an entertaining Deadpan Snarker and easily outwitting her foes at all times, not to mention her heartwarming and healthy relationship with her nephew Skippy. The news that she wouldn't be included in the 2020 revival was met with mass disappointment by fans.
    • Rita and Runt, largely due to the fact that their sketch was discontinued after the first season. Rita is popular because many fans find her adorable, plus she has a beautiful singing voice and a cool personality. Then of course, there’s Runt for being a dopey comic relief and an homage to Rain Man. Their segments also get a lot of praise because they're very dear friends regardless of what they go through.
    • Minerva Mink, most likely due to the fact that only two cartoons starring her were made and the rest had to be scrapped due to censorship issues.
    • Wilford Wolf's handsome form is pretty popular, to the point where the majority of fanart shipping him with Minerva depicts him in handsome form.
  • Aqua Teen Hunger Force:
    • The Mooninites are easily the most fondly remembered and quoted villains.
    • The Plutonians are similarly fondly remembered, though not to the Mooninites' extent.
    • The Cybernetic Ghost of Christmas Past from the Future for his utterly nonsensical Exposition Dumps.
    • Jiggle Billy, to the point where his face has reached Memetic Mutation status.
    • Handbanana, for being such a hilariously messed up concept.
    • Shake's Muscles, helps that John DiMaggio voiced him.
  • Archer:
    • Milton has gotten surprisingly popular, despite being a toaster.
    • Despite her minor role, Krieger's holographic wife Mitsuko Miyazumi is fairly popular among the anime and cosplaying fans of the show.
  • Atomic Puppet:
    • Pauline caught on with many viewers big time due to her cute design and sassy personality. "Sword Sisters" definitely helped boost it.
    • Rudolph Mintenberg and Princess War Tickle have a lot of fans as well, although they only appear semi-regularly.
    • Among the Rogues Gallery, Professor Tite-Gripp and Naughty Kitty are probably the most popular, with the latter being rather attractive due to being a Cat Girl based on Eartha Kitt and Sofia Vergara.
    • The redheaded rookie cop seen briefly in "Atomic Hairball" has received her share of fans thanks to her cute design. As did the cat-obsessed brunette with the glasses and the oversized sweater from "AP vs. Disastro".
    • Commander Atomic and Puppet Boy get a lot of fanart for characters who only appeared in a single episode.
  • The Avengers: Earth's Mightiest Heroes:
    • On the villainous side, Grim Reaper won over a lot of the fanbase with his debut appearance- a big Moment of Awesome breakout. While callous, he's also an Adaptational Badass and Creepy Awesome, unlike his comic book counterpart (who was pretty lame).
    • Ultron is very easily one of the most loved villains in the show, despite only acting as an antagonist in four episodes. An unofficial poll deemed him the most popular villain by a longshot.
    • Mockingbird has become regarded by fans as a fun character, despite only making three appearances under that alias. There's a significantly vocal group who wished she became part of the New Avengers. The choice to give her a bigger role in the Secret Invasion arc was actually thanks to Chris Yost noticing the positive reception she got.
    • Doctor Doom won fans over even before his first episode premiered. His actual feats didn't disappoint either; he overcame six Avengers and the entire Fantastic Four in a battle, and found a Skrull among them even before they could. Doom did another guest spot 10 episodes later, in which he helped Iron Man create a weapon to expose disguised Skrulls. Doom explained that he spent so much time trying to prevent the Skrulls from taking over the world so that eventually, he could take it over instead.
    • As Iron Fist and Luke Cage beat up thugs, cracked dry wit, and helped track down the thief of Hank Pym's Ant-Man suit, the viewers wished they could watch these Heroes For Hire kick even more ass in their own show.
  • The Backyardigans: Despite appearing in only three episodes, Sherman the worman is incredibly popular, mostly because of his cuteness.
  • Batman: The Animated Series:
    • The Clock King. Years after the series ended, everyone remembered that one villain who, based on his knowledge of things timely, had memorized all of Batman's moves, nearly got him in a startlingly well-conceived Death Trap, and escaped capture by jumping off of a building, because "the 9:15 is always six minutes early!" After one reappearance in the series itself, his enduring popularity earned him a guest appearance over ten years later in Justice League Unlimited.
    • "Thriftie", an unnamed character with only one minute of screen time.
    • Roxy Rocket only appeared in two episodes (one of which was only a cameo) and yet has gained a strong enough following to become a Canon Immigrant.
    • Baby Doll is arguably the most popular of the BTAS exclusive villains, due to her being very cute, but sad predicament, and her touching episode.
    • And then there's Clayface's "daughter" Annie in "Growing Pains". She even made a cameo in the Li'l Gotham comics!
    • Charlie Collins, a simple motorist who ended up beating The Joker at his own game, remains a popular character despite appearing in only one episode.
    • The Condiment King only appeared as a joke villain in the opening of "Make Em Laugh", but due to the utterly ridiculous nature of the character, he proved popular enough to make appearances in the mainstream DCU and cameos in The LEGO Batman Movie. He even became a playable character in Lego Batman 3
  • Ben 10: Ben is technically an army of Ensemble Darkhorses, being a shapeshifter who can assume various alien forms, across the series he gets a lot of forms that are heavily popular amongst the fans even when not playing an especially major point in the plot or even having limited appearance:
    • The original series had Ghostfreak and the other horror-themed aliens (Benwolf, Benvicktor and Benmummy) amongst others; to an extent, almost every minor alien in the original series has his share of fans.
    • Though the new aliens started being contested by fans (and not just the aliens) in Ben 10: Alien Force, even its most strident haters usually love Rath.
    • The five Andromeda aliens dubbed as "Team Awesome" by the fans are usually recognized as good aliens. The fact they were scanned from actual characters with each one their own stories probably help.
    • Bloxx is already the most popular alien from Ben 10: Omniverse.
    • Articguana and Buzzshock, two of Ben 10,000's aliens, became rather popular, with fans wanting to see them be unlocked. The fans got their wish with Articguana, who finally got used in Omniverse, and Buzzshock a couple of seasons later.
    • Omniverse's Plucky Comic Relief characters are very hit and miss, though the insect plumber Hobble has fewer haters. It helps that he's voiced by Steve Blum and his appearances in the Anur Transyl arc show him to be pretty funny.
  • Blaze and the Monster Machines: Pickle, mainly due to being the big comic relief and just being The Cutie with a hint of the Adorkable nature.
  • Blinky Bill: The entire Dingo family counts as this; Daisy due to the copious amounts of fanservice surrounding her, Danny due to his charm and good looks, and Shifty due to his likable personality and status as The Woobie. Meatball also has his lovable and funny moments, and Ma can be seen as a badass.
    • To a lesser extent, Ruff the frilled-neck lizard may count as well.
  • Bob's Burgers:
    • Regular-Sized Rudy has found many fans for his positive attitude and thrill-seeking tendencies in spite of his asthma.
    • Millie Frock from "Fort Night" gained fans from being so hilarious and disturbing, and they've repeatedly brought her back for more episodes. Thankfully her appearances have been far enough apart she hasn't lost her entertainment value.
    • Marshmallow, for being one of the few positive portrayals of a transgender person in fiction when introduced in Season 1's "Sheesh! Cab, Bob?" from 2011.
    • Nat Kinkle, the limo driver from "V For Valentine-Detta". Fans ate her up after 1 appearance, leading to a return in 2 episodes during Season 10. Even getting her own focus episode in her 3rd appearance.
  • Bojack Horseman:
    • Definitely Vincent Adultman, who, despite making sporadic appearances, has captivated much of the fanbase due to the sheer bizarreness of the concept.
    • Character Actress Margo Martindale, for the sheer violent insanity she exudes.
    • Kelsey Jannings, the snarky director who works with BoJack in Season 2. While she's abrasive and not the most pleasant person to be around, she's fair to those that earn her trust and is one of the few Hollywoo higherups that isn't Only in It for the Money. Fans took a liking to her and were sad to see her subplot abruptly cut off after she was fired.
    • In Season 4, Yolanda gets this spot, due to her becoming Todd's first asexual Love Interest, with the season ending with the implication that they are going to start dating soon.
    • Even if she isn't a real character, a lot of fans seem to like Ruthie for her general perky attitude and cuteness.
    • Flip McVicker got a lot of notice as a spot-on parody of pretentious writers pointlessly obsessed with being "clever" and using True Art Is Incomprehensible as a defense for every problem people bring up with their work. It also helps that he's actually voiced by the star of a show that's been accused of epitomizing this mindset.
  • Bonkers: Wacky Weasel, a one-shot villain actually has a good amount of fanart and screenshots on the Internet.
  • The Boondocks
    • Colonel Stinkmeaner, for being Laughably Evil and a source of quite a few memes as well.
    • Ed III and Gin Rummy, an iconic duo of dumb criminals who have their own wacky misadventures together.
    • Grandmaster Bushido Brown, "the greatest black karate man to ever live". His badass combat skills are highlighted by his fights with Huey Freeman, and later the Hateocracy.
    • Cindy McPhearson. Even though she only appeared in the first few years of the comic strip, and only appears in four episodes of the show, she is a fan favorite.
    • The show's portrayal of Ann Coulter from "The S-Word" as a ghetto, shit-talking lady who acts conservative just to get money is pretty popular.
    • Ming Long-dou from "The Red Ball". Even though she's only a one-shot antagonist, quite a lot of fans noticed her.
    • Jack Flowers from "It's Goin' Down", due to being a parody of Jack Bauer.
    • Lamilton Taeshawn heavily counts because he loves doing bad things.
    • Rollo Goodlove, for always proving himself to be a delightful Magnificent Bastard in his three appearances.
  • Bubble Guppies gives us Nonny, the orange haired guppy that, as of the second season, gets less screen time than the others and is notorious for never smiling.
  • Captain N: The Game Master: Mike, a former friend-turned-bully of Kevin's, only shows up for one of the earlier episodes (sort of; it's really a robot modeled after him), and yet he seems to be well remembered by the fans.
  • Care Bears: Baby Hugs and Baby Tugs started out as dark horses during the early days of the franchise. However, a majority of the Nelvana TV series is focused on them.
  • Casper the Animated Series: Poil. Despite only appearing in a few episodes, she probably has more fans than Casper and the Ghostly Trio combined.
  • Castlevania (2017): Blue Fangs gained a fanbase even from those who weren't Rooting for the Empire (despite only appearing in one episode, of course) the moment he laid a verbal smackdown on, and afterwards killed, the bastard bishop who cemented himself as a very forgettable Hate Sink due to having arranged for Lisa's death and kickstarted Dracula's plans for genocide. Fans even fell in love with one of his famous quotes, "Lies? In your house of God? No wonder He has abandoned you."
  • ChalkZone's Big Bad Skrawl is probably the most popular character in the fandom. It can probably be attributed to his menacing personality and the fact that he is voiced by Jim Cummings. There are a number of people who watch the show solely for him, despite his appearances being infrequently enough to be counted on one hand.
  • Chip 'n Dale: Rescue Rangers:
    • Foxglove, the witch familiar bat from "Good Times, Bat Times" lovestruck with Dale. She only appears in that one episode. But she gets loads of fan art, she seems to appear in more Fan Fiction as the literal Sixth Ranger or at least as Dale's girlfriend than not (mind you she and Dale were shown as a couple at the end of the episode, and a show that airs its pilot as episodes 41 through 45 is nowhere near any chronological order, so this might actually have been the chronologically last episode), and she even has a website dedicated to her with masses of contributions from the olden days of the fandom. She even managed to convert lots of even earlier Rangerphiles from then-dominant Dale+Gadget to Chip+Gadget because she and Dale make such a cute couple. Her immense popularity brought her back as a regular character and the Sixth Ranger in the Boom! comics.
    • Tammy, the teenage squirrelmaid from "Adventures in Squirrelsitting" lovestruck with Chip, but not successfully so. Although she's a Bratty Teenage Daughter at the beginning, she develops away from that (whereas Foxy develops Dale even more than herself), plus she's cute. Came Of Mice and Mayhem which made her the SeventhRanger and for the first time a nurse, and her popularity skyrocketed.
    • Tammy's mom, who is never even named, has gained a fan following as well.
    • Lahwhinie/Lawhinie/Louwhiney. She only appears in "Gadget Goes Hawaiian", but she's essentially Gadget's Doppelgänger, a kind of Gadget in a sarong wearing make-up and a flower in her hair. Yes, she's a villain. No, she is not redeemed in that single episode of hers. But she technically is even more of a looker than Gadget with lots of Fan Art to prove, and she's pure Canon Fodder for the Rangerdom's ever-productive Fan Fic writers: How come there's a mouse in Hawaii that looks almost exactly like Gadget? Even if they don't try to answer the question whether she's Gadget's Long Lost Sibling or even Evil Twin, they can still bring her back as a Gadget impostor.
    • Geegaw Hackwrench. Gadget's Disappeared Dad isn't even a character. He only ever appears in one of the five parts of the pilot, and that's in a framed picture for some two or three seconds. That, and he might not even be alive anymore. "Might" because Disney applied the Never Say "Die" rule in a way that leaves his real fate unclear. What few things we learn about him from Gadget and his old buddy Monterey Jack make him some serious Canon Fodder. He is featured in Flashbacks in the Boom! comics, too.
  • Clarence has many popular minor characters from Kimby, Chelsea, Dustin, Nathan, and Breehn, but none can top Amy Gillis who had only one episode appearance and two brief cameos.
  • Clone High:
    • Van Gogh. After the first episode he only ever appeared in cameos, but it's not hard to find fanart of him.
    • Ponce is a very popular character. Despite being created to mock the Tonight, Someone Dies Trope, his friendly nature, the genuine sadness JFK feels upon his death, and the fact that the best Heartwarming and Tear Jerker moments came from his death makes him a surprisingly popular character.
    • Clone Hitler only appears in a small cameo, but he is liked by the fandom as he seems to have gone on a different path then his clone, wearing a peace sign armband.
  • Despite his scant role in Code Lyoko, Clone William's calm idiocy and "adorable" personality made him a hit with fans — even moreso than William himself.
  • Codename: Kids Next Door:
    • Sector Z! After five minutes of screentime in the movie they won the hearts of a sizeable portion of the fanbase with their badassery. It probably helps that they were the Delightful Children from Down the Lane before they were Brainwashed and Crazy.
    • Numbuh 86 seems to be popular with tsundere fans.
    • Rachel, a.k.a. Numbuh 362, who literally ate her way through broccoli to stop the spread of it. Not to mention, a lot of fans pair her with Numbuh 1, causing her popularity to raise even higher. On the Kids Next Door Wiki, they had a poll where users could vote on their favorite operative. Numbuh 362 had more votes then Numbuh 2, a main member of the team.
    • Tommy Gilligan, a.k.a. The Tommy, Numbuh Two's younger brother. He was a big secondary character later in the series, but only because of his popularity early on.
    • Of the minor KND operatives, the most popular is easily Numbuh 60, who appears frequently in fan works despite small sporadic canon appearances.
  • Courage the Cowardly Dog:
    • The Deadpan Snarker computer with a British accent.
    • Fred the Barber Half the show's references on this site are about him. He was the least dangerous but most memorable villain.
    • Di Lung. To the point where he would appear more frequently during the later seasons.
    • Katz is another example. His popularity may be the reason he appears more often than any other villain on the show.
    • King Ramses' is quite popular despite the fact that many find his episode to be the scariest. In fact, the reason as to why most people assume he is scary is possibly an excuse to make him seem more popular.
    • Kitty and Bunny only appear in one episode, but they are very popular with fans because they're heavily implied to be a couple and the episode they appeared in had a very heartwarming ending.
  • Danny Phantom:
    • Dark Danny gets this despite only appearing in an hour-long movie. There's a variety of fanfics where fangirls sympathize him.
    • Ghost Writer is another one-episode-only character that gets tons of fanart.
    • Clockwork. For a character only appearing in two episodes, he has amassed quite a following.
    • Ember McLain. She is a teen heavy metal star voiced by Tara Strong who's, well, really hot. In-universe, she's even powered by popularity.
    • Desiree, a Literal Genie with a sympathetic backstory, and one of the best bodies in 2-D animation.
    • Not to mention Spectra, Skulker, and The Box Ghost!
    • Freakshow, the only human character who could truly be considered an antagonist. He only appeared as the Big Bad of one episode, and the third TV movie, but is one of the more popular villains, with the general consensus being that They Wasted a Perfectly Good Character.
  • Daria:
    • Stacy Rowe is possibly the best example, as her popularity with the fandom was likely the reason why she got an actual, honest-to-goodness recurring subplot in season five, which, for any Lawndale High character not named Daria, Jane, or Quinn, was really quite a feat.
    • Daria's Cool Aunt Amy, despite only showing up in three episodes (one of which was a cameo).
    • The Burnout Girl is one of the most popular extras because of her interesting design, despite the fact that she has no lines.
  • Doug: Roger Klotz and his gang, the chief antagonists. Also, Doug's older sister Judy Funnie.
  • The Dreamstone: Mech Beav only appeared in one episode, but is popular with many fans due to being a cute machine, having an adorable loyalty to Blob, and being the nearest the Urpneys had to a Mascot Mook.
  • DuckTales (1987) had its own set of darkhorses:
    • Glittering Goldie, who appeared in only one Carl Barks story, appeared in several episodes. The relatively few occasions she appeared showed her as plucky (she even has a pet bear!) and cunning. Pairing her with Scrooge (Scroldie) is still one of the most popular ships in the fandom.
    • Gizmoduck, plain and simple. He turned an accountant into the most powerful array of mechanical components and accessories who is a bodyguard and security guard for Scrooge, as well as a super hero to Duckburg and even went on to help Darkwing Duck protect St. Canard.

    E-H 
  • Ed, Edd n Eddy:
    • Rolf is probably the most popular of the kids, for being funny, quotable, and Crazy Is Cool. Even the show's creator Danny Antonucci said that Rolf was his favorite character and many fans agree with him.
    • Marie, the blue-haired Kanker. She has a much larger fanbase than any other girl in the show and is often considered to be the most attractive one, despite not being intentionally designed as such. Pairing her with the object of her affections/psychosis, Edd, is probably the most popular 'ship in the fandom.
      • Her sisters get this to a lesser degree, but more so to May, who is fairly well-liked for being the most individual of the Kankers, and from the fact that she seems to genuinely love Ed, as evidenced in the Valentine's Day special.
    • Nazz, the Girl Next Door of the Cul-de-Sac. Especially in her later appearances, she's mostly just a supporting character in the show who often tags along with the Kids. Despite this, fans have a huge following for her because of her sunny nature and for being the kindest of all the girls in the show. Additionally, Ship Tease has also elevated her popularity within the fandom, where she's been frequently paired up with the other characters, most especially Kevin and Double D.
    • Plank. Fans who have made stories focusing on that piece of wood make him out to be secretly an evil genius due to apparently being sentient and being only able to "talk" to Jonny. Also, there's a plushie of him.
  • Numerous characters in Family Guy. Includes Ernie the Giant Chicken, Death, the Evil Monkey, Ollie Williams, Seamus, Herbert, Greased-up Deaf Guy, and Bruce (the Performance Artist that has "Oh no!" as a Catch Phrase) are all popular among fans. They were also one time characters before cancellation but due to their popularity they became Recurring Extras soon after.
  • Fanboy and Chum Chum:
  • Fillmore! had a red-herring character in one episode named TQ in one episode; a stoic, Deadpan Snarker Zen student. Apparently, he really caught on with fangirls.
  • Final Space:
    • John Goodspeed, Gary's dad, is surprisingly popular for a minor Posthumous Character.
    • As of Chapter 6, Avocato is Killed Off for Real, which was pretty early in the show's run but that hasn't stopped fans from loving him as much as they do the other main characters.
      • For a character that doesn't show up in a major way until after episode 6, Little Cato has a disproportionate amount of fan-art and is probably the second most popular character after his father, Avocato.
    • The sassy gatekeeper in Bolo's mind from Chapter 8 has been rather well-received by fans as well.
    • Bolo himself also qualifies due to having a cool demonic looking appearance, being on the side of the good guys, and having a brilliant baritone voice due to Keith David being his voice actor.
    • Shannon Thunder has gained popularity amongst the fandom as well for her crush on Tribore and formatting like the Distaff Counterpart of Gary.
    • The early pilot and Gary Space versions of the characters tend to get more fan art than a lot of early conceptual versions of other cartoon characters get, even managing to find a way to intertwine the two prototypes into this show's canon in fanworks.
  • Despite appearing in only five episodes, Cheese from Foster's Home for Imaginary Friends is one of the most well-liked characters, dominating most of the merchandise of the show. However, he later became a Base-Breaking Character for being given increased exposure and having his goofball tendencies flanderized to Millstone levels.
  • Freakazoid! had Candlejack, a one off character. To explain: He's just a boogeyman who kidnaps anyone who says his name but is just a one-off villain rather than being a recurring member of Freakazoid's Rogues Gallery. He ends up spawning a massive Memetic Mutation that even at one point permeated This Very Wiki due to how easily applicable it is within internet wiki/forums until he's contained in the previous Just For Fun link (just click it to see how it works), and thus he became way too memorable for a one-shot villain.
  • Futurama:
    • "MORBO DEMANDS RECOGNITION OF HIS POPULARITY!"
    • "All glory to the hypno-toad!"
    • Calculon and his UNGODLY! ACTING! TALENT!!!
    • Hedonism-Bot apologizes for nothing!
    • Scruffy was a popular character during the interim when Futurama was not producing new episodes. He only made a few appearances in the original run, and was mostly noteworthy for his extreme apathy. Since the revival, Scruffy has had a much larger role, frequently appearing alongside the main cast, almost solely due to his popularity on the Internet.
    • Fry's perennially loyal dog Seymour from memorable tear-jerker episode "Jurassic Bark," to the point of getting One-Scene Wonder placement in The Movie Bender's Big Score and the later episode "Game of Tones," being thrown a bone both times.
  • Garfield and Friends:
    • Wade Duck from the U.S. Acres side is one of these. His cowardice was so over the top, you couldn't help but laugh (believing he would go to prison for removing a mattress tag, that staplers spy on important documents and will take over the world, that football players in a huddle during a game, no less are talking about him behind his back, etc.) Bo was one as well, to a lesser extent given his laid-back attitude and despite the fact that he was not seen nearly as often as his twin sister, Lanolin.
    • Despite only appearing in three U.S. Acres, Aloysius Pig from the same segments has a pretty small following for complaining about activities people wouldn't find troublesome and being voiced by a popular comedian, Kevin Meaney.
  • Generator Rex has Breach, who gained a bunch of fans due to a combination of some tension with the main character, and being attractive while being delightfully creepy at the same time. It got to the point where the fandom had a collective freakout when she seemed to be killed off, then rejoiced when it turned out she was fine.
  • Goof Troop:
    • Max's cousin Debbie only appears in one episode ("Leader of the Pack"), but is almost as popular as the main cast.
    • Mrs. Pennypacker also only appears in one episode ("Date with Destiny") and is also very popular, though not quite as popular as Debbie.
    • One of the Trekkies in A Goofy Movie has reached meme status despite having no name, no plot relevance, and only two lines (spoken by different actors) in the entire movie.
    • Bigfoot. Plenty of people testify that his short suite of scenes were the funniest part of the movie.
    • Beret Girl in An Extremely Goofy Movie is extremely popular, despite having no name and only appearing in four scenes, because of her appearance, her interesting personality, and the fact that she's the final love interest for PJ.
    • Tank is also fairly popular for how big his role was due to his Boisterous Bruiser personality and Heel–Face Turn.
  • Gravedale High: Ask any fan who their favorite character was. 9 times out of 10, you'll get Vinnie Stoker as the answer.
  • Gravity Falls:
    • Gnomes, the first Monsters of the Week, who always have comedic moments. Shmebulock takes the cake among them.
    • Candy Chiu, Mabel's new nerdy friend, has picked up quite a following, most likely because her cute design and Adorkable antics, such [[strapping forks taped to her fingers]]. The fact she's basically a human combination of BMO and Lady Rainicorn (being even voiced by the same actor) also helps.
    • Two of Dipper's clones, Tyrone/Dipper 2 and Paper Jam Dipper. The former is a genuine Nice Guy, who only attacks Dipper due to misunderstanding and they later make up. The latter has a Ugly Cute mashed-up design and funny Verbal Tic. The interactions between those two also help.
    • Sir Lord Quentin Trembley lll, Cloud Cuckoo Lander former president of the United States and the titular town's real founder, has a number of fans for being an eccentric genius and his interaction with Pines Twins.
    • Blendin Blandin, the time traveller who goes after Dipper and Mabel is popular for being a Butt-Monkey Designated Villain. Being voiced by Justin Roiland using his Lemongrab/Morty voice helps the case.
    • Rumble McSkirmish, a Ryu Expy is popular for his unique visual style, being an Affectionate Parody of video games of different genres and also being a Deconstructive Parody on what would happen if such a character would end up in the real world. Being one of the few "monsters" to experience Character Development helps as well.
    • Mermando is arguably the most popular Guy of the Week for Mabel, since they have genuine chemistry and he's actually sincere in his love for her. Plus, he's a hilarious parody of a Paranormal Romance.
    • Carla McCorkle, who only appears in two episodes, and even then, only in flashbacks or memories, and has essentially no bearing on the plot, however she's certainly the fan favourite of Stan's referenced/implied love interests, and their relationship is often portrayed in fanworks as having been extremely significant.
    • Soos' Abuelita, for approaching anything weird with Dissonant Serenity. Being a genuinely good mother figure to Soos and being voiced by Matt Chapman of Homestar Runner fame helps.
    • Bipper (Bill Cipher's possession of Dipper's body) became widely popular among fans, no thanks to the outfit he wears during the climax.
    • .GIFfany, a Dating Sim character who gained sentience and developed Yandere tendencies towards her players. She's probably the most popular Monster of the Week, enough so that Gravity Falls: Journal 3 has her still alive and paired off with Rumble, much to the joy of many fans.
    • Melody, the similarly childish woman Soos hooks up with in "Soos And The Real Girl", gets a lot of love for liking him the way he is and them making a really cute couple.
    • Tad Strange, who is notable for having become an Ensemble Dark Horse months before the episode aired, due to a very popular theory that he's Bill Cipher's secret brother as well as the fact that he's voiced by Cecil Baldwin of Welcome to Night Vale fame. When the episode aired, however, he's revealed to be nothing more than a joke character, which only skyrocketed his popularity further.
    • Several of Bill's Henchmaniacs are just as popular as their boss. The most prominent ones are Zanthar, Teeth, Pyronica and a giant horrifying, sweaty, one-armed human head monster.
  • The Grim Adventures of Billy & Mandy:
    • Fred Fredburger, much in the same vein as Cheese from Foster's Home for Imaginary Friends described above. YES!
    • Jack O'Lantern is quite popular, despite appearing in only one episode.
    • Ain't nobody tell Dracula what he gonna do! Dracula was born knowin' what he was gonna do!
    • The number of episodes Sir Raven appears in can be counted on one hand, but that doesn't stop him from being one of the most popular characters to come out of the show.
  • Grojband: The title band's semi-regularly recurring rivals, The Newmans, are pretty popular with fans despite being just Rule 63 versions of Grojband (although that is probably a major reason for their popularity). Laney's counterpart Larry (later retconned as Lenny by the creators) is especially loved by fans for being shy, nervous, and dainty (in contrast to Laney) with a huge unrequited crush on his band's leader.
  • Hercules: The Animated Series: Several of the secondary gods in the TV series have gotten a fan following, especially Aphrodite.
  • Hilda:
    • While they only appear in three episodes (and have cameo in the series finale), the Marra have easily become the most popular creatures amongst the fandom due to their cool nightmare powers, the fact they're one of the most villainous creatures in the series, and their resemblance to the teenage girls.
    • Kaisa the librarian has gathered many fans due to the mystery surrounding her and the fact that she had been very helpful to Hilda, as well as her interesting, witch-y design. The fact she is a witch also helps the case.
    • The animated series' version of Tildy. She's not only one of the most powerful witches and the former mentor of Kaisa, but she's also a sweet, understanding Cool Old Lady, who offers to teach Frida magic.
    • The Bellkeeper quickly became the series' fan-favourite, thanks to being the Safety Patrol's Token Good Teammate and one of the few characters to avert the usually used Adults Are Useless trope, as well as the fact he has many things in common with Hilda. The latter fact even led to many fans suspecting him to be Hilda's father. While Season 3 gets the theory jossed, the intrigue surrounding his character because of his fainted blue streaks has only raised.
    • Hilda's great-aunt Astrid. Many fans enjoyed her for basically being the Expy of Grunkle Stan without the latter's jerkish qualities.
    • Despite appearing in only one episode, Eugene quickly became Season 3's fan-favourite due to his Ugly Cute design and entertaining showman personality.
    • Despite Louise having major role in only one episode, many fans have ended up loving her due to her quiet and observant personality and her fun dynamic with Hilda, Frida and David. Many fans ended up wishing she got more time in the spotlight.
  • Histeria!: Charity Bazaar is well-liked by for her snarky, melancholic attitude. In fact, the whole Kid Chorus seems to be more popular than the hosts.

    I-L 
  • Atsuko from Inspector Gadget; a one-shot character from the episode "The Japanese Connection," she is basically the Japanese equivalent of Penny, (only with no Brain or Gadget counterparts) a Moe, Gadgeteer Genius who fights a Japanese Dr. Claw Expy. She appears frequently in fanworks as a friend of Penny's so you'd be forgiven for thinking she was a Recurring Character. note  Similarly, Sonya note  the gypsy girl from "Prince of the Gypsies," who is often partnered with the other two, but not to the level of Atsuko.
  • Invader Zim:
    • If you judged this show by the fan works, you'd assume that Tak was a major character; in fact, she only appeared in one double-length episodenote . She had one planned reappearance before the show was Cut Short, but it's certain her popularity would have resulted in many more. Given that she was the first competent Irken we had ever seen, and made a great Foil for Zim, and as a new female character she offers several shipping possibilities.
    • THE MOOSE! Seriously. The Moose has its own fanbase just for being so damn impressive.
    • Minimoose, who only appeared in one episode before the show got cancelled, makes regular appearances in fanart and fanfic, usually as the Woodstock to GIR's Snoopy. He's just so darn cute...
  • Jackie Chan Adventures:
    • Jade's (technical) Superpowered Evil Side, the Queen of the Shadowkhan. Despite only showing up in one episode in Season 2 (and getting a brief mention by Tarakudo in Season 4), there are quite a variety of stories in which she regains the powers and/or personality of the Queen. (See Project Dark Jade.)
    • The Demon Sorcerers also count, though not to the same extent as Queen Jade because they got more screentime. They were a Big Bad Ensemble in the second season, but were never heard from again after their defeat. The fandom loves these guys, who were each given decent and distinct personalities despite only really getting one episode each, plus a few group appearances.
      • In particular Hsi Wu, the sky demon. Somehow the one episode he has a significant role in managed to make him a fan favorite for shipping with Jade. Or else everyone just hates Paco that much...
  • From Jem we have Stormer in the Misfits. Her popularity is fueled by her being the Token Good Teammate of the Misfits, albeit she is capable of having a nasty attitude from time to time. She's the overall creative force behind her band but she never gets credit for it, and usually winds up helping (secretly) the Holograms when she absolutely feels she needs to. Stormer has also been the only Misfit to be offered a place in the Holograms, but she turned it down because she felt the Misfits needed her more. Word of God has it Stormer's first loyalty is always going to be the Misfits regardless note , which really only makes her more likable; she sticks by her friends.
  • Jimmy Two-Shoes:
    • Saffi doesn't appear very frequently, but she's easily one of the show's most popular and well-known characters because of her Cute Monster Girl design, Cloud Cuckoolander personality, and well-received relationship with Beezy.
    • Peep doesn't appear super frequently but he's pretty well-liked in the fandom, because his crush on Heloise, his memorable Cockney accent, and his pickpocket/con artist characterization make him one of the primary reasons for many to watch Season 2 episodes.
    • Despite never appearing on-screen and being mentioned only once in the series, Lucius I is quite popular with fans, due to his reputation as The Dreaded and his intimidating appearance being a vast source of Fanfic Fuel.
    • Apple (the Winged Humanoid Recurring Extra) became very popular in the fandom for her Cute Monster Girl design. Her role in "Scent of a Heinous" increased the popularity tenfold.
  • Johnny Test: Sissy is popular with the fans (especially shippers).
  • Justice League (Unlimited):
    • As she was in her previous appearance in the DCAU (which was back in Batman: TAS), Zatanna is very popular with fans due to her attractive design, voice, cool magical abilities, kind personality, and friendly relationship with Batman.
    • Giganta. Fans find this version of character attractive and adorable. She has also Ship Tease with the fan-favorite Flash in the last episode.
    • Vigilante. Being a superhero cowboy voiced by Nathan Fillion will do that for ya.
  • KaBlam!:
    • Anemia and Iodine from their self-titled short. While only having one short, they managed to gain a bit of a following (the former especially for being a Perky Goth cat girl) and are the only characters from a one-shot short to have gained any fanart online. The fact that the director of the short worked on Rocko's Modern Life and thus the characters had a similar visual style to the show didn't hurt.
    • Among Life With Loopy fans, there's Larry's girlfriend, Stacey. She made her only appearance at the end of "Larry's Girl", late into the series' run, and had only one line of dialogue. Due to her scene being one of the sweetest ones in the show and overall being a very cute character, she became very popular with fans of the short and has received a bit of fanart.
    • Many Loopy fans also really love Raquel and Saffron from "Bull In A China Shop" and "Larry's Girl" respectively, despite them only appearing once.
  • Kaeloo:
    • Eugly the rabbit, who doesn't say or do much in the event that she even appears in the episode. However, a lot of fans like her because she's genuinely kind (most of the characters on this show are jerkasses), and there's a quite a bit of fanart dedicated to her.
    • Ursula, Stumpy's girlfriend. She's mentioned in passing in some episodes and has made a total of two physical appearances on the show, yet she is featured prominently in fanfics.
  • Kim Possible:
    • Electronique was rather popular with fans, more than you'd expect from her single appearance. But then again, she was a Baroness and Gadgeteer Genius with electrical powers, a short temper and a hammy accent from somevhere in zer centre of Europe, so she was a memorably entertaining character, and as a villain in Shego's hometown she had a connection to the fandom's favourite villian.
  • Knick Knack: The pre-Bowdlerization versions of Sunny Miami and Sunny Atlantis have a fan following for obvious reasons.
  • The Lion King franchise:
    • Jasiri from The Lion Guard is this for being a good hyena, and having (arguably) the best song in the show.
    • Cheetata and Cheetato from Timon & Pumbaa. These two sophisticated cheetahs seem to be gaining a fanbase.
  • Littlest Pet Shop (2012) gives us Sugar Sprinkles, the stoner-esque cat who lives in the Sweet Delights truck. After appearing in a single episode in Season 1 and getting as much fan attention as the main pets, she came back for a single episode of Season 2, as well as another episode appearance in Season 3.
  • Looney Tunes:
    • One of the strangest examples: the nameless drunk cat with the red nose, big lips, saggy jowls, dickie shirt with bow tie and bandage on his tail. He only appeared in the Bob Clampett-directed "Kitty Kornered" as a pet of Porky Pig who teamed up with Sylvester and two smaller cats, but he proved popular enough to appear in many of the spin off series of the 1980's and 90's including Tiny Toon Adventures and The Sylvester and Tweety Mysteries.
    • To a far lesser extent, Penelope Pussycat, originally the unlucky nameless cat who would get chased by Pepé Le Pew in his shorts has been gaining her fair share of popularity these days as well.
    • There's also Michigan J. Frog. He appeared in just one seven-minute short, but is one of the more popular and recognizable minor characters in the Looney Tunes universe. He proved popular enough to become the mascot for The WB.
    • Marvin the Martian appeared in a grand total of five shorts during the franchise's golden age, yet he's one of the most popular villains in the franchise due to being Affably Evil, cute, and actually posing something of a threat.
    • Similarly, the Tasmanian Devil (who also only appeared in five of the classic shorts). Eddie Selzer hated him and told Robert McKimson he didn't want Taz to appear in any more cartoons, but relented when he found out that Taz was popular. He proved popular enough to get his own show.
    • Pete Puma appeared in only one cartoon, "Rabbit's Kin", but that one appearance proved so popular that he became a semi-regular character in later series and appeared in at least one '90s theatrical short (the Foghorn Leghorn cartoon "Pullet Surprise").

    M-Q 
  • The Mask: Any Mask personas that appear in one episode other than The Mask
    • Eve is a female version of The Mask and like him she is genuinely insane but good hearted like him as she saves Stanley from Pretorius which makes her popular with the fans and her sweet nature towards him as well makes her even more popular.
    • Masked Dr Neuman is terrifying and scary as he shows what could happen if The Mask decided to become a supervillain instead of a hero but he is popular because of these things and the fact that like The Mask he has his funny moments and being Affably Evil as well which makes him more popular as well.
    • Masked Peggy Brandt is egotistical, vapid and vain but however these things along with the fact that she is very hilarious while being any of those things makes her very popular while still having a good heart like The Mask makes her this even more.
  • Mega Man (Ruby-Spears) had Pharaoh Man, who appeared briefly in one episode and instead of being portrayed as a wisecracking dumbass, was portrayed as smart and competent. His crowning moment was punching Mega Man in the face after having his weapon stolen.
  • Megas XLR: REGIS Mark V is the most popular one-shot villain for being a hilarious and ineffectual Cold Ham with lines delivered courtesy of Michael Dorn.
  • In Metalocalypse, a show about the five members of a death metal band, who emerged as the most popular character? Their manager, Charles Foster Ofdensen. Fending off an assassin and making said assassin stab himself helped.
  • Mickey Mouse:
    • In recent years, Clarabelle Cow has gotten quite a cult following. She’s often depicted as a close friend to Minnie Mouse and Daisy Duck and is sometimes shipped with Goofy. However, she is often excluded from adventures involving the Sensational Six.
    • Horace Horsecollar, one of the OG members of Mickey’s gang, is another underrated character who is often shipped with Clarabelle, but he gets even less spotlight than her.
    • Clara Cluck, who is sometimes viewed as Donald’s “second girlfriend”, has her share of fans too.
  • During the classic era of Disney shorts, Pluto had two girlfriends: Fifi the Peke and Dinah the Dachshund. Both have generated their own fan bases. Since then, they’ve sort of faded off into obscurity, but they both made appearances in a couple of the shorts from the Paul Ruddish era (Fifi moreso than Dinah).
  • Mixels:
    • The fandom loves Scorpi. And Nurp-Naut is climbing in the ranks just as high as him.
    • After Mixel Moon Madness, the Glowkies (Well, Globert and Vampos at least.) are very popular in the fandom.
    • Vaka-Waka is one, probably due to his funny German accent and having two heads with different personalities that makes him a funny and likable character.
    • Some of the background Mixels in Every Knight has its Day are this, particularly Booger, Phosphee, and the Teacher, who is the first female Mixel on the show.
  • Many recurring and/or minor characters in Molly of Denali are popular with fans, such as…:
    • Shyahtsoo, due to her being Grandpa Nat's friend during his time at the Boarding School of Horrors, and having kept his drum safe.
    • Nina, due to her design and love of science.
    • Oscar because of his adorkableness.
    • Jake, mostly because of the novelty of him looking like Sean, and because his character got expanded later on in the show, since he is revealed to have a fear of creepy crawlies.
    • Vera is popular due to being a bit tomboyish, having a love of dinosaurs, and providing Filipina representation to the show.
    • Kenji, Tooey's dad, is very often designated as a "DILF" by fans who love his soft voice and kindness, making him a male, cartoon example of a Yamato Nadeshiko. The producers caught on, but took him away.
  • My Little Pony 'n Friends: Downplayed due to the show's relative obscurity as compared to its, er, somewhat more popular successor, but Reeka, Draggle and Hydia, a trio of bumbling witches, stand out from the heroes by being both endearingly incompetent and having actual conflict, unlike the bland and interchangeable Ensemble Cast protagonists learning some Stock Aesop or other and getting New Powers as the Plot Demands.
  • OK K.O.! Let's Be Heroes:
    • Red Action was quickly embraced by fans, thanks to her rather Animesque design, cool factor, and interactions with Enid. Red's following substantially increased after "Back in Red Action" aired, revealing her backstory as a Sentai-inspired runaway from the future with a heavy dose of romantic overtones with Enid.
    • Thanks to Drupe's thick hips and thighs, there's been a lot of fan art of this strawberry girl.
    • Succulentus only appears for a few minutes, but fans were drawn in by his numerous nu-metal references. Helps that he's voiced by Korn lead singer Johnathan Davis.
    • When Cosma made her debut, people immediately fell in love with her thanks to her design and her Pragmatic Villainy attitude when she points out the problem of Boxman constantly attacking the plaza. Not to mention she's voiced by Marina Sirtis, who played Deanna Troi in Star Trek: The Next Generation.
    • When Enid's Parents were introduced, fans immediately fell in love with them, due to being an incredibly sweet, polite, and cool vampire/werewolf couple. The fact that they're both pretty attractive has also won them some points.
    • Miss Pastel and Koala Princess have quickly garnered love for their Animesque designs and Pseudo-Romantic Friendship vibes.
  • PAW Patrol:
    • Everest, spawn off a huge fan base before her debut episode even aired! She only appears in some but not all episodes, which places her in Ensemble Dark Horse territory. She’s mostly popular for being a really sweet girl with an optimistic attitude.
    • Chickaletta surprisingly has a big fan base too.
    • Tracker was announced over a year before his debut, but at first, the fans didn't talk about him very much. After his debut in "Tracker Joins the Pups", however, he became very popular and was gladly welcomed into the fandom.
    • The Mer-Pups, who have so far only appeared in two episodes, have also gained a fairly impressive fan base.
    • Sweetie quickly became a fan favorite and now currently stands as the show's most popular antagonist.
    • Another antagonist pup, Arrby, has become quite popular with the fans as well. Even though he is a sidekick to the antagonist, Sid the Pirate, he still acts like a nice guy, which helped make him a very adorable character from the fans’ perspective.
    • Sid Swashbuckle has garnered a decent fan base for being a Jerk with a Heart of Gold/Large Ham.
    • Katie’s pet cat, Cali, also has a surprisingly big fan base as she tends to be somewhat popular in fan art.
    • Rex caught a lot of attention from the fans, mainly for being a disabled pup, which makes him unique.
    • One particular one shot character, a pup named Sylvia, who barely did anything at all in her episode, surprisingly got a huge cult following amongst some fans of the series, especially on DeviantArt.
  • Paw Paw Bears: Eugene the Genie is well-liked for his snarky personality and being voiced by Scatman Crothers.
  • The Penguins of Madagascar:
  • Phineas and Ferb:
    • With the fanbase the size as it is, a case can be made for most (if not all) secondary characters, with the Fireside Girls (Gretchen in particular, since some fans pair her with Ferb) being the most prominent examples.
    • Eliza Beckham Fletcher, it is unlikely she will show up again yet she already got a sizable fanbase following less than 2 days after the one episode in which she does aired.
    • As for background characters, the female backup dancer with the brown hair in the "S.I.M.P." song and "A Real Boy" has gotten a lot of attention. To the point where she got a speaking role and a Fanservice Pack in the Halloween special "Night of the Living Pharmacists". Apparently her name is Dana.
    • Planty the Potted Plant has accumulated a large fanbase too, including members of the staff who tried getting him more screentime. Unfortunately his scenes were mostly cut.
  • The PJs: Smokey, the lovable crack addict.
  • Pound Puppies (2010):
    • While most of the pups in the show were intended to be one-shot characters, some have gained some big fan bases. For instance, the puppy known as Pepper became a mega fan favorite (most likely because of her tough girl personality) so much that she was brought back in a Season 3 episode working with the Super Secret Pup Club.
    • Taboo for having a very familiar-sounding voice.
    • Lucky's father, Slik, has an impressive fan base, mainly due to his striking resemblance to Tramp from Lady and the Tramp.
    • Cupcake started out as a dark horse. Everyone (both the fans and the show's creators) found her to be so cute that she quickly became a permanent recurring character starting in Season 2, except with a more down-to-earth personality rather than an innocent cute kid.
    • Lucky's owner, Dot, introduced in the Season 1 finale, has become likable enough that she would recur more often in Season 3.
  • The Powerpuff Girls (1998):
    • The Rowdyruff Boys. Who were evil male counterparts to the titular three main characters who were intended to appear only once due to being killed off. However, mere days after the episode first aired, the Internet was swamped with dozens of fanfics and fanart pieces devoted to them. Entire websites — exhaustive websites, full of art, episode transcripts and bustling forums — were created in their honor. The fans were almost unanimous in the desire to see the boys come back. After four years of demand, they finally returned in Season 5.
    • Bunny only appeared in one episode, due to being Killed Off for Real, yet is a popular character.
    • Dick Hardly also only appeared once, but he's rather popular for being a surprisingly evil villain.
  • The Powerpuff Girls (2016):
    • Silico is the most popular of the new villains, due to a strong first appearance and surprisingly menacing nature.
    • DupliKate won over some fans with both a cute design and likeable personality that is the perfect kinda Ham and Cheese for the show. The fact she actually does give the girls a challenge helped.
    • A few fans found the butter boy aka "Butterfingers" pretty interesting. A villain whose motivation was wanting to be a superhero but resorted to un-superhero like methods (i.e. stealing Buttercup's body) because the power he gained wasn't to his liking. The fact that he has a very skewed perception of superhero-ing (solely just fighting bad guys for action rather than protecting people) and willing to kill to keep Buttercup's body was a factor too.
  • Quack Pack:
    • Despite often playing second fiddle to Huey, Dewey, and Louie, many find Donald and Daisy to be more compelling characters, in large part because the show successfully adapted them to the more contemporary setting while still staying true to their classic personalities (with Donald remaining an Unlucky Everydude and Daisy being updated to a careerwoman), while the triplets are generally seen as paint-by-number 90s kids archetypes. It also helps that Daisy is nicer here than in her other animated appearances.
    • One-shot character Nelly the dragon from the episode "Leader of the Quack" is very popular on DeviantArt, at least among fans of chubby cartoon characters.

    R-V 
  • Randy Cunningham: 9th Grade Ninja: Many side and background characters are popular with fans, like Debbie Kang, Heidi Wienerman, Juggo, etc. Heck, even a nameless background character (dubbed "NG" for "Nameless Girl") is adored by some!
  • Ready Jet Go!:
    • Dr. Bergs, due to his interesting personality, dynamic with the other DSA scientists, and love of coffee.
    • Amy Mainzer from the interstitial segments is one herself due to not talking down to children and for being a good role model. In fact, some people only watch the show just for her segments.
    • Face 9001 has only appeared in one episode, yet he's loved due to his cockiness and rivalry with his brother.
  • Recess:
    • King Bob, for his hammyness and Mundane Made Awesome attitude.
    • Hustler Kid, especially with the female fanbase.
    • Cornchip Girl, Butch, and Lawson also have sizeable fanbases.
    • Miss Grotke, for being a Moe Hippie Teacher with hints of Sensei-chan here and there (and was pretty popular among the show's older male fanbase)
    • The "Bad Kids" consisting of Conrad Mundy, Greg Skeens, Sue Bob Murphy, Kurst the Worst, and Lazy Kid are quite popular despite only having large roles in a few episodes. It isn't too hard to find fanfics with these guys in it.
  • Regular Show:
    • The baby ducks became quite popular over the course of their two appearances.
    • Techmo for his cool design and the one-and-only Steve Blum providing his voice.
    • Stef, the woman Mordecai met and later married in the finale, became popular as soon as her name was revealed.
  • Robot Chicken parodied this when Rick Berman (producer of Star Trek: The Next Generation) tried to create a character more annoying than Wesley Crusher, Snirkles. The response? "Kill Wesley. Keep Snirkles." Oops.
  • Robotboy:
    • Robotgirl is easily one of the most popular characters in the show, despite only appearing in two episodes. You’d think she would have a bigger role judging by all the fan art she gets.
    • Protoboy, who appeared in four episodes is nearly just as popular as her. Being almost unanimously the most beloved villain due to being Robotboy's older brother, being more serious then most of the other villains and being considered cool. He was originally a one-shot villain, but his return later on may have been in-part of his popularity.
    • Outside of Protoboy, Bjorn Bjornson and Bjornbot are also quite popular among the villains, likely due to factors such as their tie to Professor Moshimo, funny moments, and Large Ham-tendancies in the case of Bjorn himself.
    • Felonious Hexx is the most popular villain introduced in season 2, possibly due to his entire existence being basically a Take That, Scrappy! towards Gus.
    • Tommy's mom, Deb Turnbull, due to her Hartman Hips. There's a lot of pinup fanart of her online.
    • Despite being only appearing twice, one being a cameo, Mona Lethal manages to be quite popular.
    • Agent Kalashnikov, if only for one reason.
  • Ruby Gloom:
    • Morose. One episode was all it took for her to become popular. Perhaps her voice might have helped?
    • Heck, Misery's cousins in general are quite popular, but special mention, aside from Morose, goes out to Malady and Malaise — their popularity was probably helped by not only having had appeared in an earlier "Misery family" episode, but also for actually being rather kind to others compared to, say, Mildew or Migraine. Makes Misery's description of them being "cold" all the more ironic, huh?
  • Sagwa, the Chinese Siamese Cat: The Alley Cats for their over the top hilarious moments, as well as the one shot characters.
  • Samurai Jack:
    • The Scotsman. A big, loud, barrel-chested walking stereotype with a huge Scottish claymore and a machine-gun for a leg who picks a fight with Jack for no real reason at all. Usually when a baddie does this he's curb-stomped by Jack in one blow, but fans were shocked and delighted when The Scotsman instead evenly matches Jack, fights him for a straight day, and the battle ends in a tie when they are both too exhausted to continue. The guy went on to return in a later episode, then gets A Day In The Lime Light episode where he saves Jack's life repeatedly over the course of a two-part episode. The Scotsman's daughters, who were introduced in Season 5 also deserve special mention for being an Amazon Brigade of young and hot but heroically built ladies.
    • Demongo got a pretty big fan base as well despite only appearing in one episode, enough to even get him a profile on Cartoon Network's site at one point in their old shows archive. He also makes an appearance on the game FusionFall.
    • The Guardian of the time portal is well-loved by fans for being the only character to unambigously and truly defeat The Hero Samurai Jack and fans are hoping that he reappears in Season 5 with a rematch with the more experienced samurai. Unfortunately he did, and when we mean unfortunately, we mean being Killed Offscreen by Aku without much fanfare, to the dismay of many fans who were hoping that another rematch would have happened.
    • Exdor, who seemed very similar to Dexter. He later appeared in the 2004 video game.
    • X9. His episode was an excellent noir episode, and he had an excellent 1920's mobster theme. Shame he was forced to go against Jack... which only meant one thing.
    • Ikra, Aku's female alter ego, is popular enough to be shipped with Jack.
    • Da Samurai has also been picking up some steam as well. People seemed to enjoy his change towards the end of his episode, and some even hope he comes back for Season 5. They got their wish as he makes a cameo in the sixth episode.
    • Despite appearing only in the opening scene of Season 5, the unnamed family of humanoid dog aliens referred to as the Emoji Family is quite adored by the fanbase for being cute and adorable due to using emoticons to communicate with each other, and they spawn a lot of fan art.
    • Scaramouch partly for being the comic relief to break up the heavy drama and tension for the rest of the episode, and for how his fight with Jack is the perfect blend of intense, creative and ridiculous. His popularity would skyrocket the moment he uttered one dirty word that caught every viewer by surprise because it would never get away with it in previous seasons and it turned into an instant Memetic Mutation.
  • SpongeBob SquarePants:
    • Tom the fish spawned an Internet meme of him saying "CHOCOLATE! CHOCOLATE!"
    • Squilliam Fancyson. He is supposed to be a Hate Sink, but he's so full of himself and loving every moment of it that people love it every time he appears on screen.
    • Where's Old Man Jenkins?!
    • Fred the "My leg!" guy.
    • Smitty Werbenyagermanjensen: HE WAS NUMBER ONE!
    • The Ugly Barnacle has a huge following. Or it would if it didn't kill everyone.
    • On the topic of "Chocolate With Nuts", Mary's mom also counts for providing one of the funniest scenes in the show's history.
      Mary's mom: I remember when they first invented chocolate. Sweet, sweet chocolate. I ALWAYS HATED IT!
  • Star vs. the Forces of Evil: Mariposa Diaz became popular even before she was born (back when she was known as Marco Jr.). Plenty of fans took an interest in her potential as a best friend and Foil to the reborn Meteora Butterfly, which was only fueled further when the episode "Gone Baby Gone" showed the two as teenagers with a close bond.
  • Star Wars: Clone Wars (2003 Micro-Series by Genndy Tartakovsky. Not to be confused with the series that started in 2008):
    • Shaak Ti became a fan-favorite after her arc of protecting the Chancellor. Not only did she have the unenviable task of going up against General Grievous and his Magna Guards back when they were considered The Dreaded, (Grievous alone defeated a group of six Jedi fighting him at once earlier), but she managed to really hold her own against their onslaught due to clever tactics, and as a result ended up being the only Jedi who survived the ordeal. The cool fighting, her caring personality, the selfless sacrifice she made to save the group (even if it ultimately didn’t work), and her cute design all endeared her to fans. So much so that it seems she inspired the choice to create another Togruta Jedi, Ahsoka Tano, to be the apprentice of Anakin Skywalker himself and a main character in the 2008 series. (Shaak Ti could not fill that role herself due to her background appearances in the first two prequel movies establishing her as a Jedi long before Anakin ever became a Jedi Knight himself.)
    • Durge was ultimately a Starter Villain in the series who got taken down by Obi-Wan very early on. However, as a Bounty Hunter with cool regenerative abilities and a menacing presence, he became so popular to fans that Disney has ultimately made the decision to bring him back into the Star Wars canon long after the series itself was removed from it.
    • Asajj Ventress was ultimately a Disc-One Final Boss who was meant to die after her fight with Anakin to push him further toward The Dark Side. However, due to being a creepy yet cool Dark Action Girl who dual-wielded with style, she became popular enough to get saved in other expanded universe works, and even became a prominent character in the 2008 series with many more storylines of her own.
    • At the time, General Grievous achieved this status for being a nearly-unstoppable Hero Killer who was at the center of what many fans considered to be the best fight scenes. Notably, out of the nine Jedi he was seen fighting, only four of them survived, two of those survivors were hospitalized, and only one of them actually defeated him (Mace Windu, who happens to also be the only Jedi who possibly defeated Darth Sidious himself.) Unfortunately, severe Villain Decay hit him after this and he is now loved more ironically than genuinely, but this incarnation of the character has remained beloved nonetheless.
    • Very minor Jedi Sha’a Gi is remarkably popular due to being an Expy of Shaggy Rogers, who has quite the fanbase himself.
  • Storm Hawks: Suzy Lu and the Absolute Zeroes have some of a fanbase, due to their memorable Cloud Cuckoolander antics and taking their Canadian pastiche to amusing levels, while Suzy Lu herself is a rather likeable Cool Big Sis-type character. It helps that the Blizzarians' unique design helps them stand out despite their limited screen time.
  • Superjail!:
    • While only appearing in four episodes, Ultraprison's Mistress became surprisingly popular among the fandom.
    • Charise also receives this treatment, due to her relationship with Jared and being seen as cuter and innocent compared to Mistress and Alice.
    • The Twins' older brothers also gained their own following of fans.
  • Sym-Bionic Titan:
    • Tashy 497, a lovable squishy space squid who showed up in a single episode of the same name, is every bit as beloved as the main cast. His death at the end of the episode is widely considered one of the most devastating moments in the show.
    • Xeexi is well loved, considering their 2 minutes of screen time.
    • Barb, for being a hilariously creepy stalker with zero sense of personal boundaries.
    • Mirabel. Her popularity may have stemmed from people settling that Ilana was free again because Jason and Mirabel hit it off, even though that was never confirmed.
    • Kristin is extremely popular due to her cool attitude and Ship Tease with Lance. It's to the point that, apart from Ilana, she's the character who's most often shipped with Lance. Many fans are disappointed that they didn't get the chance to flesh out her character. Helping her popularity is her resemblance to a little girl in the Dexter's Laboratory episode "Eye Eye Eye's".
    • Todd has become popular due to a stellar performance by an avid RPer who took his little 30 second run and made an interesting character.
    • Baron from the episode Shadows of Youth. Despite clearly being written as a Hate Sink, he obtained a great deal of popularity, with him often being shipped with Ilana (despite the two never interacting). It's to the point where many wanted him to show up again.
    • Mike Chan from the episode "Roar of The White Dragon" is well-liked for his self-centered, arrogant attitude and tension with Lance. His girlfriend, dubbed June, also has a following despite only having a few seconds of screentime.
    • Meat is also popular for his wacky antics and nonsensical dialogue. It helps that he's voiced by Bill Fagerbakke.
    • The other cheerleaders, Monica, Amber, and Tiffany, are well-liked, despite not having much character aside from being Kimmy's friends.
  • TaleSpin has quite a few One-Scene Wonder characters with fan followings, including cowgirl Clementine Clevenger (Wildcat's Love Interest in "Citizen Khan"), Princess Lotta Lamour ("The Road to Macadamia"), and Adventurer Archaeologists Katie Dodd ("For Whom the Bell Klangs") and Myra ("In Search of Ancient Blunders").
  • Teen Titans Go!: Despite only making three major appearances, Rose Wilson is one of the most popular characters, due to being one of the show's few serious villains, having great interactions with fan favorite Raven, and having an overall badass design and fighting style. It helps that she lays a verbal smackdown on the Titans.
  • Teenage Mutant Ninja Turtles:
  • Thomas & Friends:
    • For secondary characters, Duck wins by a landslide, followed by Oliver, the Scottish twins, and Bill and Ben.
    • Salty and Cranky of Brendam Docks locale were among the first key supporting characters created specifically for the show. They became popular enough to stick around throughout the entire series, in spite of several attempts at cast streamlining demoting even key Railway Series characters.
    • Paxton, a non-speaking background character introduced in 2011's Day of the Diesels, was given a much larger starring role in Blue Mountain Mystery which solidified his odd but well-meaning personality. Fans liked the character so much that he's since received several starring roles in Series 17 and 18.
    • Plenty of fans were excited to know that the Flying Scotsman would make his first proper appearance in The Great Race, and hope he will appear again after that.
    • For a literal (probably) non-sentient slab of rock, the Boulder from "Rusty and the Boulder" is considered very memorable by the fans, in part because of how bizarrely frightening its episode is.
    • Derek has a good number of fans due to being an accurate portrayal of his basis.
    • Molly is one of the better-loved characters during the HiT Entertainment era due to her Shrinking Violet personality, which makes her stand out in a crowd of what were otherwise generic Nice Guy newcomers (aside from the occasional Hate Sink like Dennis or Billy). Her popularity might have been why she made more speaking appearances then most of the 9-12 characters, who usually only appeared once with a few cameos later on. To say nothing of how she was a common request for a returnee during the Brenner era - though that unfortunately never came to pass.
    • Despite only appearing in one episode, Smudger has become popular thanks in no part to his use in YouTube Poops, his very memetic laugh, and his surprisingly horrific fate.
    • Granted he was only created for the Wooden Railway line, but Logan became a popular character in many web series and fanfics that often depict him staying on Sodor and becoming friends with Hector, who works with him at the Crosby Coaling Plant.
    • Hiro doesn't appear often in the show itself, but is popular with fans for his backstory and pacifist badassery. He's especially huge in Japan, where he is merchandised and promoted as much as Thomas himself.
    • Despite his extremely limited screentime in "Big World! Big Adventures!" and lack of appearances in the show proper, Beau tends to get love as a Cool Old Guy. He was the first character from the "Big World! Big Adventures!" era of the show to get a Bachmann model, beating both Nia and Rebecca to the slot.
  • The Tick has the outrageously funny and silly The Evil Midnight Bomber What Bombs at Midnight (Yeah, baby, yeah!). His hilarious patter and outrageous behavior made him a fan favorite.
  • Tiny Toon Adventures:
    • Fifi LaFume. She appears infrequently in episodes and only has 4 shorts of her own, but is by far the most popular character with the fandom, for obvious reasons, and many fans wish that she had a bigger role. Being a Ridiculously Cute Critter and a sympathetic character also helps. This is probably also why she got cameos in Animaniacs.
      • Lampshaded in ''Night Ghoulery".
        World's Biggest Fan: And when is Fifi going to get her own series?
    • Furrball is also one of the more popular ones too, in no small part thanks to being part of the Fan-Preferred Couple with Fifi, and being a general woobie.
    • Julie Bruin, who only appeared in one episode but is quite popular.
  • Top Cat fans often choose Choo-Choo as the fave. So much he got picked to be Top Cat's partner in the Fender Bender 500 series, even though Benny the Ball is typically TC's right hand.
  • Madame Catastrophe from T.U.F.F. Puppy.
  • VeggieTales: The Peach only has a speaking role in a couple Silly Songs, but is still a memorable character.

    W-Z 
  • Odlaw from Where's Waldo? seems more well-liked than Waldo himself. To a lesser extent, Woof could qualify as this.
  • Winnie the Pooh:
    • The Heffalumps and Woozles from The Many Adventures of Winnie the Pooh. Canonically, they only appeared in one 3-minute musical segment and were never mentioned again within the film. In addition, they have rarely ever appeared in the Disney Crossovers and for the ridiculously few times that they were, they were just a pass-by Halloween segment or mooks at best! Despite this, they have gained love (and/or terror) from fans of every shapes and sizes due to the segment's love of anything that comes out of a LSD hookah.
    • Probably the most overlooked character in the whole franchise is Gopher, a character who is very humorous and likable. What makes him so unique is the fact that he was made specifically for the Disney franchise and was not from the stories by A.A. Milne (he even jokes about it by saying, "I'm not in the book.").
  • Winx Club: Mainly from the first four seasons.
    • Brandon, Helia, Timmy, and Nabu for the guys. Riven used to be this, until he Took a Level in Jerkass and became one of the series' biggest Base-Breaking Characters.
    • Darcy from the Trix.
    • Mirta for being The Woobie and adorable and cute Perky Goth. Her friend Lucy gets a lot as well for defying the usual cookie-cutter face/body molds as all the other girls.
    • Diaspro and Chimera count too, at least in their first appearance when they really looked threatening.
    • The Wizards of the Black Circle, due to being the most competent villains in the series, and the only ones to permanently kill one of the Heroes. The fan base was pissed at how easily they were defeated.
    • Daphne is beloved for being a Cool Big Sis, having a unique backstory, and having a really interesting design, though many were upset when her backstory was changed and she was revived.
    • Dark Bloom is incredibly popular, with far more fan art than her good personality.
    • Among all the fairy forms, the Enchantix seems to be the most popular, not only for being cute, but also because the requirement necessary to unlock it is a source of development and interesting storylines. Many fan-created original transformations out there are clearly based on Enchantix or include its main characteristics (like having shinier wings, sporting elaborate jewelry, and going barefoot or in some kind of sandals). The announcement that Enchantix would return in Season 8 made fans very happy, until they saw how it had been changed.
    • Voice acting wise, among the first Nickelodeon cast, there are those who really like Romi Dames as Musa, mostly from how she sounds very similar to her predecessors yet she still adds a bit of spark to stand out.
  • Le Mime from Xiaolin Showdown only appeared in one episode, but still has his fair share of fangirls, particularly when he's paired with Jack Spicer.
  • X-Men: The Animated Series:
    • Morph was in the first episodes entirely for the purpose of being killed off so the writers could show how serious the series would be. However, his unexpected popularity led to him being revived in the second season.
    • Nightcrawler's episode was so well-received they wrote a second one just to bring him back and the writers seriously considered having him join the X-Men after "Bloodlines." Which would have been quite appropriate, seeing as how Nightcrawler was part of the original New X-Men lineup from the 70s — alongside Wolverine and Colossus.
  • Yuck from Yin Yang Yo! is the evil counterpart of Yin and Yang who's both a Manipulative Bastard and a Jerkass. He only appears in six episodes total throughout the whole series yet that doesn't stop him from having a much larger fanbase than the main characters. Though other villains such as Carl and Smoke are fairly well liked, he is arguably the most popular. His tension with Yin in "Falling Yin Love" and Heel–Face Revolving Door in "Upstanding Yuck" only add on to this.
  • Young Justice (2010)
    • While people are divided about the characterization of most of the cast, particularly Superman and The Joker, there's one character nobody dislikes: Captain Marvel. He's the most fun character in the cast and seems to be as popular with the fans — and even non-fans — as AQUAMAN was.
    • The runaways who were experimented on by the Reach (Eduardo Dorado, Jr., Tye Longshadow, Asami Koizumi, and Virgil Hawkins) achieved this after "Runaways". Virgil already had a built-in fanbase, being one of the most hoped-for characters since the show premiered. But Eduardo, Tye, and Asami, derived from Superfriends, have already garnered plenty of fans on their own. That they're all True Companions already helps.
    • Stephanie Brown. She only has a cameo in "Before the Dawn," and her identity is All There in the Script, but fans were still happy, especially since she was not being used in the comic books at the time. Thankfully, she appeared in season three in her heroic identity, Spoiler.
    • "Coffee Pot Guy", the unmasked manta trooper who offers Tigress a fresh pot of coffee in "Complications".


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