Mara, the demoness from Ah! My Goddess, has these; in her case, they seem to emphasize that she's less dangerous than she looks — the series is primarily a romantic comedy, and so she would be out of place if she were a real danger. Plus they let her make a vampire joke in the TV series.
Haruko from AIR has them, even though she is generally depicted as a nice person, albeit with some issues.
Another male example comes in the form of the Medicine Peddler from Ayakashi: Samurai Horror Tales and Mononoke. They're more subtle than usual, so unless he's gritting his teeth or yelling (not something he does a lot) you barely see them. But they're there.
Hachikuji from Bakemonogatari has these, and they see a lot of use, since her standard retaliation when she and Araragi end up fighting is to bite him with all her might.
Valt's younger twin siblings Toko and Nika from Beyblade Burst have a fang permanently poking out of their mouths.
Black Butler: Sebastian frequently sports these in later chapters, alternating between them, a normal smile, and Scary Teeth depending on the emotion he's displaying.
Hiyori Sarugaki of is often teased about her prominent little fang by fellow Vizard Shinji Hirako, and later by Ichigo, at which she promptly lampshades this by saying the fangs are one of her charms. She has a fang and buck teeth, and it makes her even funnier.
Haineko, the manifested spirit form of Rangiku Matsumoto's zanpakuto, has them.
Rin has one, being the son of Satan, in Blue Exorcist after his demonic power awakens. If he's pissed off or goes berserk, it falls under Fangs Are Evil.
Masumi Sera of Case Closed has cute little fangs that show up occasionally when she's smiling, and Conan has even pointed them out as a defining feature of her looks. These also help him to remember that he met Sera and her family in the past.
Index from A Certain Magical Index exhibits these at times, usually when about to bite Touma.
Delmo in Cosplay Complex possesses them, even though she is a bunny girl. Apparently rodent teeth are not as cute though.
Don't Toy with Me, Miss Nagatoro: Nagatoro has these, which are especially notable when she's teasing Senpai. In Chapter 5, she pretends to be a vampire and playfully tries to bite Senpai.
Garlic Jr. in Dragon Ball Z. He may be a villain but it's still cute looking, the way one fang sticks out of his mouth when he smiles.
Aisha Clan-Clan, and presumably other Ctarl-Ctarl, from Outlaw Star has these pretty much every time she opens her mouth or smiles normally. When she smiles before changing into her tiger form for a fight, they become part of something else.
In Fairy Tail, larger fangs are a common trait among Dragon Slayers. While characters like Gajeel, Laxus and Cobra only look more menacing, others like Wendy and Natsu (especially when they're drawn in a chibi style) look cuter with them outside of battle. Among other mages, Milliana displays these as well.
Mordred in the anime version of Fate/Apocrypha has these, to visual cue us their Jerk with a Heart of Gold status. Although it does show her other teeth, but not the other incisor.
Another prominent example would be the Rider of Black Astolfo, who always shows his right fang, even as an outline of his mouth.
Haruko Haruhara in FLCL has these in the baseball episode (possibly others).
Tasuki from Fushigi Yuugi. You can see his fangs just about every time he opens his mouth.
Madarame from Genshiken and his successornote future self in Spotted Flower, though "cute" might not be the word. The fangs emphasize his snake-like qualities.
Hanayamata: Hana, a cute, innocent, enthusiastic girl, often has a pair of upper fangs on display. Being small for her age makes her stand out from the central female cast, as well.
Tsuruya has a small fang that's always visible when she opens her mouth. In a noteworthy variation, the fang actually gives her a speech impedimentnote The fang causes her to mispronounce certain words; it has nothing to do with her sing-song style of speaking. Which just makes her that much cuter.
At least one illustration in the light novels gives Haruhi one.
Seras in the Hellsingmanga and OVA, at least whilst she's not going psycho. And when she is...
Romania from Hetalia: Axis Powers, which has led to fan speculation about him possibly being a vampire or at least liking to pretend that he's one. Belgium has them in some sketches too, but they're not nearly as noticeable.
In the Highschool of the Dead manga, Saya has a fang in just about every image, even when her mouth is closed — the artist seemed intent on displaying it at all times. In the anime it's visible only when her mouth is wide open.
I Love Yuri and I got Bodyswapped with a Fujoshi!: Hoshina always has one poking out of her mouth, to represent her mischievous personality, and to remind the reader which body she is in in a bodyswap story.
The eponymous character from the manga and anime Inuyasha sports these, since he's descended from a dog yokai. In the sequel series Yashahime: Princess Half-Demon, his daughter Moroha also has one fang.
Jewelpet Twinkle☆: Miria has these, presumably cosplay accessories, to complement her cat theme (having two cat Jewelpets).
Kaguya ocasionally had a fang in earlier chapters of Kaguya-sama: Love Is War, though this detail was eventually phased out and instead given to her Shadow Archetypeand cousin Maki. Maki's brother Mikado is also shown to have one.
Seiji from Kids on the Slope, which matches up with his slightly mischievous personality.
Kuro from Kodomo no Jikan sports some fangs to emphasize her feral nature.
Aoi Inuyama from Laid-Back Camp has one, fitting with her surname ("dog mountain"). Due to the manga's art style it looks less like a tooth and more like a flap of skin hanging off her upper lip. Her little sister also has one, suggesting that it runs in the family.
Killla Kill's Ryuko Matoi has noticeably large canines that are evident when she's yelling or in more relaxed moments with her friend Mako. It's a subtle indicator that she's a human infused with life fibers.
Anzai Nobuyuki seems to stick these (or rather a single fang projecting over the bottom lip) on his main characters, especially when they're drawn in a more humorous fashion. It's really noticable on Ginta in MÄR. There is no logical reason given for why they have them.
R Nomura of Marginal #4. He's the sweet fluff of the group, but he's also a very skilled gamer who apparently gets very intense when he plays. His "dark" side can go even further than that, as seen in episode 3 of the anime, when he and his twin turn a demonic hidden camera prank around on the director. R is often drawn with one of these.
Tohru from Miss Kobayashi's Dragon Maid has one. Rather appropriate since her true form is a western style dragon.
Lampshaded in the Hentai manga Mozaiku x San Shimai, where a Tsundere girl's cute little fang interferes with... well, take a guess. Fortunately, no serious pain results.
Daisuke "Beast" Inuki from the yaoi manga My Beast has very pronounced fangs on his lower jaw. These usually make him look more intimidating, but in a few scenes they look very cute.
Suigetsu is a borderline example. While he has one triangular shark-like tooth that sticks out of his mouth while it's closed, that's what all of his teeth look like.
Naruto himself has them to varying degrees in the first few stages of his Kyuubi transformation. Four-tailed and further take a different route.
Negima! Magister Negi Magi: Evangeline A.K. McDowell, given hints about the future plot of the story, may be a rare Western vampire who gets the Cute Little Fangs treatment.
The eponymous Niea from Niea_7 has them, likely because she is an alien. Still, other aliens in the show seem to lack them.
Kirino from Oreimo sports these; they become especially evident when playing eroge.
Sorawo from Otherside Picnic has a fang, despite not fitting the usual "mischievous cutie" archetype at all.
Pokémon: Grookey sports two small fangs in its upper mouth that are occasionally visible, but it doesn't make it look any less cute.
Ponko Tsundere na Osananajimi: Sanae possess one to highlight her Genki Girl nature.
Tomomi Shirakawa of the hentai title Princess 69 has this. It's most prevalent when she smiles mischievously and the "camera" is shown close to her face...
Kyouko in Puella Magi Madoka Magica and Kirika in Puella Magi Oriko Magica. Both play with this trope, Kyouko having two fangs instead of the normal single one, and Kirika most assuredly doesnotfit with the normal personality type the fang tends to signify. At all.
Queen's Blade: Hide & Seek. Elina flashes hers on numerous occasions and is even said to be just like a cat.
Ryôga from Ranma ½. In fact, one reading of "Ryôga" is "Good Fang". These are apparently genetic, as seen when girl-Ranma convinced him she was his sister by wearing fake teeth with her flimsy disguise.
Moka and Kokoa from Rosario + Vampire sport Cute Little Fangs, being vampires. In Moka's case though, it's only Outer Moka who has proper Cute Little Fangs — the more mature-looking Inner Moka has longer, more menacing looking fangs.
Lime from Saber Marionette J and its sequels sometimes seems to have a Cute Little Fang, but it's hard to be sure — it's clearly a tooth, but it's far more rounded and blunt than the usual anime fang.
Saki has Yuuki sporting one these, because she's the resident Genki Girl, and Kana sporting another one of these, because she has that entire Cat Girl schtick going on.
Non-humans in human guise generally have them (Xellos, Filia, and Valgaav), but perhaps the only real humorous application of them is Lina herself, where they range from the "cute little fang" variant to worryingly noticeable◊.
Gourry got them on occasion, in the third season (TRY) of the anime.
Holo from Spice and Wolf, but hers are permanent and natural since she's a wolf spirit. In human form, anyway. In her natural form it's more a case of More Teeth than the Osmond Family — as anyone who's seen the mouth of an even completely ordinary wolf can tell.
Ichikawa in Sukisho has one of these in almost every scene for no adequately explained reason.
You don't get to see them very often, but Ryoko actually has top AND bottom fangs. You can catch the bottom ones on occasion when she screams.
Tenchi Muyo!: Ryoko and Ayeka are the two that display them the most, usually whenever they're bickering. But Kiyone also flashes a pair, or a single fang, when she's either surprised or exasperated by Mihoshi'sairheadedness.
Kiyal, one of Kittan's three sisters in , has a fang. She's the most feral of the three. And yet in the same episode she debuts in, her own brother goes on a rant about how humans don't have fangs, only Beastmen have fangs. Wha-huh?
Hiei also has these when he shows his teeth (which isn't very often) even as a baby!
Francesca from trash. has this, which also adds to her Cute Bruiser quality. Not so cute when you find out that they have a practical use.
Tomo from Tomo-chan Is a Girl! has them. That said, she may be cute herself, but she's certainly not little.
It seems to run in her family, as her mother also has it.
Hana Uzaki, the titular protagonist of Uzaki-chan Wants to Hang Out! has one visible in almost every frame, reflecting her mischievous and energetic nature. However, due to the way it's drawn, it sometimes passes off as being part of her lip, although the anime's second season shows it as a normal fang. Her younger sister Yanagi also shows one often, particularly when she finds something worth teasing.
For a seiyuu example, we have Asami Tano (who plays Sarah Kazuno in Love Live! Sunshine!!; in an odd twist, the character she portrays does not have the cute fang).
Magia Baiser (Hiiragi Utena) from Gushing over Magical Girls in most scenes where she appeared or is mentioned, she appears with one of these and sometimes two of these. They mainly appeared when she was nervous or excited, depending on the situation.
, where she is very bright and cheery... until she pulls out those two pistols.
