Characters: Durarara Anime Supporting

This is the supporting character page for the many characters of Durarara!!:

Warning!! The examples below may include spoilers for the light novels, as well as the anime.

If you're only following the latternote , proceed at your own risk!

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    Semyon "Simon" Brezhnev 
Want some sushi? Hey, why are you running away?
Voiced by: Takaya Kuroda (JP), Patrick Seitz (EN)

A Black Russian sushi hawker. Being an immigrant, his Japanese isn't very good and his physical appearance frightens some people. Despite this, he's a kind and intelligent man who only wants customers to visit the restaurant.

Affiliated with the Dollars.
  • The Atoner
  • Anime Accent Absence: Averted, but in the wrong way. His accent sounds like an English speaker's, not a Russian's.
  • Badass: The only man in Ikebukuro who can physically stop Shizuo, and he does it casually and routinely. Luckily, he's very friendly and peaceful, so it stops here.
  • Badass Pacifist: Aside from one memorable incident in which he gave Izaya a black eye, he's one of the most non violent people in the entire show.
  • Dark and Troubled Past: Was in the KGB until the Soviet Union fell, after which he (along with Dennis, the future owner of the Russian Sushi shop he now works at) took a job under Russian weapons dealer Drakon. What exactly he's done under Drakon's orders is vague, but it obviously wasn't good.
  • Eloquent In My Native Tongue: He's deep, eloquent, witty and philosophical (as evident from his inner monologues), but it's hardly visible behind his intimidating appearance and broken Japanese.
  • Face of a Thug: Simon is friendly as all hell, but the fact that he's both a Scary Black Man and a Husky Russkie tends to scare people away.
  • Famous-Named Foreigner: Brezhnev, while not terribly rare, is still a rather uncommon surname in Russia, and will immediately invoke the late Leonid Brezhnev and The '70s.
  • Former Regime Personnel: He and Dennis were former KGB, and true to stereotype, transitioned from that into involvement with The Mafiya.
  • Funny Foreigner: A black Russian with broken Japanese is comical if you're not scared of him. It's heavily implied he is just be playing this for what it's worth.
  • Gentle Giant: He towers over most Japanese people and intimidates them. It must be the power of the Gaijin Smash.
  • Hidden Depths
  • Husky Russkie
  • It's Raining Men: He leaps down from the seventh floor of an apartment building and, of course, lands safely.
  • I Was Just Passing Through: He says that the aforementioned leaping off the building was only because he was making a delivery to a client on the top floor when he saw the fight.
  • The Mafiya: Simon and Dennis (now Chief Chef) are former members of such an organization.
  • Martial Pacifist: Simon doesn't even like talking about violence, and only uses his martial arts skills to either defend himself or break up a fight. He has, however, killed someone in the past.
  • Mother Russia Makes You Strong
  • Obfuscating Stupidity
  • Running Gag: His apparent inability to bring customers to his shop.
  • Scary Black Man: Simon's career as a sushi tout seems to suffer as a result.
  • Static Character: Although we learn more about him, Simon himself doesn't change during the anime.
  • Super Strength: Simon jumps from a building and manages to stop Shizuo's rampage. From the reaction everyone involved give, this evidently happens a lot.
  • Tastes Like Friendship: He espouses the belief that the only reason people fight is because they are hungry. Thus, after breaking up a fight he makes the opponents eat together.
  • "The Reason You Suck" Speech: Punches Izaya in the face and gives him one. The point of it was Simon claims Izaya manipulates people to kill each other but has never done it himself and claims higher moral standing for this. He also warns Izaya not to manipulate people to kill each other again, as it feels terrible.
  • Wham Line: Starts of his "Reason You Suck" Speech to Izaya with one.
    Simon: Have you ever killed people? I have.

    Saburo Togusa 
Go on, just try to even touch his van.
Voiced by: Takuma Terashima (JP), Spike Spencer (EN)

The fourth member of Kyohei's gang, as well as the gang's official driver. Affiliated with the Dollars, by proxy of Kadota.
  • Angrish: Mutters to himself incoherently over Walker and Erika's choice of replacement door for his van. When they ask if he's OK he bellows at them to shut up.
  • Badass: Not averse to getting his hands dirty, especially in a car chase.
  • Badass Driver
  • Berserk Button: Do not damage his van, or kidnap Kaztano.
  • Big Damn Heroes: In epsiode 24 alongside Kadota.
  • Butt Monkey: Wonders why he has this status when Shizuo tears off the side door of his van to use as a weapon.
  • Calling Your Attacks: "Turning LEFT!"
  • Car Fu: Uses his van to fight troublemakers by ramming into them.
  • Defector from Decadence: He's also a former member of the Blue Squares, who left alongside Kadota, after being disgusted by their amoral activities.
  • Drives Like Crazy: When he's particularly pissed he indulges in somewhat maniacal driving. Or even when he's not particularly pissed. Case in point: driving down stairs.
  • Heroic BSOD: Seeing Shizuo tear off a door of his van briefly sent him into shock.
  • Otaku: Unlike Walker and Erika, the object(s) of his obsession are Idol Singer Ruri Hijiribe and his Toyota Tarago.

    Namie Yagiri 
Voiced by: Sanae Kobayashi (JP), Bridget Hoffman (EN)

Chief of the 6th lab of Yagiri Pharmaceuticals and older sister of Seiji Yagiri — with whom she has a rather disturbing romantic attachment to. This has repercussions later on when she tries to capture Mikado in order to get a hold of Mika Harima, resulting in the first First ever Dollars meeting and Yagiri Pharmaceuticals shady business involving kidnapped people being used for medical experiments being exposed which in turn leads to Yagiri Pharmaceuticals being completely absorbed by the American company Nebula, and her out of a job, at least until Izaya offers her one...
  • Adaptation Dye-Job: Brown eyes in the anime and manga, navy in the novels. Both match the curtains.
  • Aloof Dark-Haired Girl: Almost always described as this in the novels. She's tall, has long dark hair, and displays an extremely aloof and cold attitude towards anyone who isn't her brother. She's also quite attractive, even Izaya thinks she's foxy.
  • Big Bad Wannabe: At the time of her introduction, we were led to assume that she was going to be the main villain, but she quickly (and epically) gets shown up by Mikado, of all people, and to top it all off, she's now nothing more than a pawn for the real Big Bad, Izaya.
  • Big Brother Attraction: Inverted since she's the older sibling, but she makes no effort in hiding her disturbing affections for her brother.
  • Broken Ace: She's always described as an incredibly stunning young woman and she has enough smarts to give Izaya a run for his money. She's also rich, as well as the head of Yagiri pharmaceuticals. Oh, and did we mention she's a virtually emotionless Jerkass who's madly in love with her brother?
  • Brother-Sister Incest: Onesided, but her affection for her brother is clearly not platonic. This obsession results in her effectively throwing her father's company away, all to try and keep Seiji close to her.
  • Clingy Jealous Girl:
    • More jealous than clingy. While she makes it a point to drape herself every time she sees Seiji, she doesn't stalk him or go out of her way to see him so much anymore. She just complains about Mika and gushes over Seiji via words.
    • She shows the extent of her clinginess in season 3. Not only does she break a teacup when she hears Seiji is using the First Name Basis with Mika, she actually tries to kill Mika once she starts to consider her a real "rival" for Seiji's affections.
  • Deadpan Snarker: When she's not lusting after her brother, that is.
  • Demoted to Extra: Went from heading R&D at a chemical corporation to stirring soup and serving tea for Izaya.
  • Disproportionate Retribution: After getting humiliated by Mikado, she later tells Horada that he's the leader of Dollars in the hopes that Mikado will be killed by him. Lampshaded by Izaya, who says vindictive people like her are scary.
  • Girl with Psycho Weapon: Often depicted with a cleaver or something in official art.
  • Hypocrite: She likes to rub Izaya's nose in his lack of friends. But while he possesses at least one friend, she doesn't have any.
    • Possibly a subversion seeing as she doesn't seem to want any friends.
    • Her limelight episode starts off with her going on about how fake people are. She believes that people don't love, but just want to be needed and only take but never give. She swears that her love for her brother is different, despite that he only calls her when he needs money or to get him out of a bad situation. He isn't even affectionate to her. Their relationship is a prime example of the "fake love" she looks down upon.
  • Hot Scientist: Until she lost said job.
  • Insane Troll Logic: Listen to her monologue about her "pure" love of her brother. It must run in the family.
  • Jerkass: A slightly subtle version, but Namie doesn't really give a rat's ass about anyone but her brother. She's also not particularly fond of teenagers, and she's constantly insulting Celty, Mika, and Izaya, but you probably won't feel bad for the latter.
  • Knight Templar Big Sister: She'll do anything to keep Seiji safe and happy. Even cover up attempted murder and forcing a teenage girl to get plastic surgery to resemble his sick crush.
  • Lack of Empathy: Being told that she's an awful person for all of the human experiments she's been doing really doesn't faze her at all. If it doesn't hurt Seiji, then she simply doesn't care. However she is aware of empathy, making sympathetic statements about Celty's separation from her head and disturbed comments about her employers immoral actions.
  • Like an Old Married Couple: Appears to live in Izaya's apartment, and often cooks his meals for him. Although she frequently complains about him and tries to annoy him all the time, she probably knows him better than anyone else (and vice versa).
  • Love Makes You Evil: There is nothing she won't do for Seiji's sake.
  • Mad Love: Her relationship with her brother is one of the most disturbing in the series, and that's saying something.
  • Ms. Fanservice: Moreso in the manga, where she's shown naked in the shower for about three pages. Granted, she's bathing her brother, so...
  • Murder the Hypotenuse: Many of the experiments she conducted on Celty's head in the lab involved her trying to destroy it somehow, although the head would undermine her efforts by regenerating from any injuries it sustained. Also, she later attempted to kill Mika in the third season, although she was thwarted.
  • Non-Action Snarker: There are several action girls in Durarara!!' but Namie isn't exactly one of them.
  • No Sense of Personal Space: Once again, to her brother, who she pretty much drapes herself around every chance she gets. If he still lived in the same house as her, she would still be taking baths with him. (That last part was only in the manga.)
  • Ojou: She's the heiress of the highly successful Yagiri Pharmaceuticals, and had become the CEO of the company by the start of the story. Unfortunately, it didn't last.
  • Oral Fixation: Yasuda Suzuhito, the illustrator of the original novel, seems fond of depicting her with something in her mouth.
  • Parental Neglect: Likely the main cause of her...erm, "pure" love for Seiji. It's a little more elaborated on in the novels and the manga than it was in the anime.
  • Promotion to Parent: After their parents lost their jobs, she was expected to take care of her little brother while they argued about what to do. Which she did, happily.
  • Proper Tights with a Skirt: Anime only. She wears stockings in the novels and is bare-legged in the manga.
  • Sassy Secretary: Izaya hires her as his personal assistant after the whole fiasco with Yagiri Pharmaceuticals. Much snark is tossed around between them.
  • Servile Snarker: She would dutifully complete her tasks as Izaya's secretary. But not without finding her own ways to insult and/or irritate him along the way.
  • Sexy Secretary: She becomes Izaya's secretary and he calls her foxy.
  • She's Got Legs: Oh, yes. Her stockinged legs are proudly displayed in any art piece that she's included in. Sometimes, Suzuhito just draws her legs.
  • Single-Target Sexuality: Disturbingly Seiji-sexual.
  • Smug Snake: Up until she was shown up by Mikado, she's very sure of herself despite the fact that she fails so often.
  • Snark-to-Snark Combat: With Izaya on occasion, though he isn't really snarky with anyone else.
  • Stalker with a Crush: She pays Izaya's sisters unbelievable amount of money to spy on Seiji on her behalf.
  • The Stoic: Normally bears a stern expression (unless Seiji is involved).
  • Sugar and Ice Personality: She's generally quite icy, especially in comparison to Izaya, but melts into a puddle of warm, bubbly water when Seiji's around. The manga takes it Up to Eleven.
  • Supreme Chef: She gets a 95% rating for her cooking skills.
  • Sweater Girl
  • Take-That Kiss: She steals a kiss from Mika right before trying to disfigure Mika's face with chemicals.
  • Those Two Bad Guys: When teaming with Izaya. Particularly evident in the Akane arc.
  • Villainous Breakdown: She has quite the breakdown when The Dollars gang up on her and her goons .
  • Villainous Incest: Let's just say her feelings for her brother are creepy and disturbing and leave it at that.
  • Volleying Insults: Her interactions with Izaya tend to subtly fall under this in recent volumes, though usually it's just her threatening to kill him and him taunting her.
    Izaya: I've already had you working on everything that needs to be worked on at this point! Ahh, how boring.
    Namie: ......May I beat you up?
    Izaya: No. What's the matter, am I not paying you a pretty decent salary? I don't think beating up your head man would be a good idea.
    Namie: In that case, I'm going to beat you up once I receive my salary.
  • Yandere: She will do anything for her dear Seiji. She was willing to hide the fact that Mika was almost killed by her brother and get rid of Mikado because he knew too much. In the manga, she tried to destroy Celty's head when Seiji told her he liked it. Later, she tried to get rid of Mika when she decided she was a threat.
  • Zettai Ryouiki: Type A; novel only. Her thigh-highs are often drawn with tears in them, for extra sexy.

    Seiji Yagiri 
Voiced by: Kazuma Horie (JP), David Vincent (EN)

The above mentioned's younger brother. Dropped out of high school on the first day to be with his lover. He has now returned and is now Mika Harima's boyfriend until he retrieves Celty's head once more.
  • Batter Up: He does this to Mika in the manga, after she breaks into his apartment room through the window.
  • Broken Ace: He's handsome, smart... and huge Yandere for a girl's head.
  • Devoted to You: Both Namie and Mika are crazy about him. However, he's only interested in Celty's head.
  • Flat Character: There is nothing to him beyond being a Yandere who has two other Yanderes attracted to him. That's it.
  • Insane Troll Logic: He must have learned it from his sister.
  • Irony: Gives Mikado some constructive advice concerning his love life in the anime.
  • Love at First Sight: Seiji's been in love with Celty's head the moment his sister snuck him in to see it.
  • A Love to Dismember: Dude fell in love with a head. It's like he's competing with Shinra for the title "Lover of the Uniquely Beautiful." Which makes it more funny since technically they ARE competing.
  • Loving a Shadow: Seiji decides to stay with Mika after she confesses that she's not really Celty's head — not because he actually likes her, but because she's a close enough substitute until he can get his hands on the real thing again.
  • Mad Love: His relationship with Mika definitely counts, since he not only tried to kill her once, but even after he agreed to stay in a relationship with her, he outright states he is only using her until he can find the real head of his beloved Celty again.
    Seiji: I'm in love with the scars on your neck...
  • Nightmare Fetishist: Besides being in love with a girl's severed head, he loves horror movies because seeing monsters reminds him of Celty's head.
  • The Pen Is Mightier: Does this to Shizuo, who is more amused though than actually pissed off.
  • Sickeningly Sweethearts: He and his girlfriend are always seen cuddling and acting lovey-dovey. They are actually a subversion, since their relationship is extremely disturbing.
  • The Sociopath: It's pretty clear he only cares about himself and Celty's head. What does he do after he smashes his stalker's head into a wall for seeing Celty's head? He calmly calls his sister to have her take care of it and sits to eat cup noodles. The only thing that bothers him is that Celty's head would be taken away from him.
  • Take-That Kiss: Gives one to Namie for stealing a kiss from Mika and trying to kill her. Needless to say, it has the opposite effect that he intended.
  • Tall, Dark and Handsome: Just enough so that when Kida meets him just before he drops out of school, he suggests that he join him and Mikado in picking up girls.
  • Yandere: Puts three pens in Shizuo for looking at Mika Harima wrong. Strangely enough, it was Celty who grabbed her, not him, then he tries to stab Mikado with a scalpel. And earlier than that he grabbed Mika by the hair and smashed her face into a wall just because she caught sight of Celty's head (which he had stolen from his sister's lab), resulting in Mika having a facial reconstruction which resulted in her face looking like Celty's as part of a ploy by Namie to keep Seiji under her control.
  • You Know Too Much: His reason for trying to kill Mika after she sees Celty's head in his room.

    Mika Harima 
Voiced by: Mariya Ise (JP), Carrie Savage (season 1), Kira Buckland (season 2) (EN)

Seiji's girlfriend. She resembles the disappeared Mika Harima, and has a scar around her neck. She is, in fact, Mika Harima given plastic surgery to have Celty's face and make Seiji like her.
  • All Girls Want Bad Boys: Even after Seiji tried to kill her and telling her he would murder her if she tries to eat Celty's head, Mika is still madly in love with him.
  • Chekhov's Gunman: Shows up in the opening theme, unnamed. Anyone who saw Baccano!'s opener (and the conspicuously unnamed Claire Stanfield) knows she's important.
  • Clingy Jealous Girl: She hides it very well, but in season 3 she reveals her gruesome plans for Celty's head if she ever gets her hands on it.
  • Curtains Match the Window: Before she had the surgery to make her head look like Celty's.
  • Ditzy Genius: According to the manga, Mika is an academic genius who gets straight As in all of her classes. She could have gone to a prestigious high school if she wanted to, but chose Raira Academy instead to be with her friend and foil, Anri.
  • The Fake Cutie: She seems super sweet and adorable...but then we find out what she's really like...
  • Faking Amnesia: She claims that she doesn't have any memory of who she is. She's lying, of course. Namie was actually planning on really giving Mika amnesia after the plastic surgery was finished, namely by removing her memories about Seiji and Celty's head, although Mika manages to escape before she can carry it out.
  • Foil: To Anri.
  • Girl with Psycho Weapon: Hers is a trowel, and she's not afraid to use it.
  • Hidden Depths: Despite her primary character relationships are with Seiji and through him, Namie and Anri, formerly, she's more developed than Seiji is.
  • I'm a Humanitarian: She is planning to eat Celty's head if she ever finds it.
  • Improbable Weapon User: At one point, she picks up a mop and begins bashing the heads of a Girl Posse with it. She also carries around a trowel.
  • Mad Love: With Seiji. Even getting brained by him won't stop her from agreeing to illegal plastic surgery so she can hook up with him.
  • Magic Plastic Surgery: She got plastic surgery to look like Celty's head.
  • Murder the Hypotenuse: Mika has... plans for Celty's real head if she ever gets her hands on it.
  • Nice Hat: She wears a cute white hat adorned with a heart nearly all the time.
  • Obfuscating Disability: Pretends to be mute at first.
  • Obfuscating Stupidity: This girl knows EVERYTHING that's going on: Mikado being the leader/founder of the Dollars, Izaya being stabbed, what Celty is looking for, who's who on Izaya's chat, Anri hosting Saika inside her, etc. She knows it ALL, and more. All because she has tapped EVERYTHING and EVERYONE relevant in the story due to the fact that they are all connected to her love, who she wants to keep safe. The only reason she hasn't revealed all that information to her friends is because Seiji might find out and intervene, getting himself hurt or killed in the process. Now digest that for a second, and then realize she might have more information than Izaya. Thank you.
  • Red Herring: The visible scar around her neck is designed to deliberately throw off both characters in-universe and viewers who are not already in the know about the location of Celty's head.
  • Replacement Goldfish: Once Seiji finds out she's not Celty's head, he lets her stay with him anyway since she's the closest thing he has to Celty's head until he finds the real one.
  • Scars Are Forever: Has a large, jagged scar running around her entire neck. This was part of her plastic surgery in order to fake having a new head.
  • Shipper on Deck: She supports Mikado/Anri and is interested in the progress of their relationship.
  • Sickeningly Sweethearts: She appears to be this with Seiji, since they're always seen cuddling and acting lovey-dovey. Their relationship actually is extremely disturbing.
  • Spoiled Sweet: She is said to be from a rich family, but she's not particularly spoiled or petty, since she befriended Anri during middle school, who was bullied often and had no other friends besides her at that point. Though it's worth pointing out that said friendship was based on Mika befriending Anri so she had someone to look better than in comparison.
  • Stalker with a Crush: Very. She even had stalker tendencies before Seiji came into her life, and since then she has taken her stalking Up to Eleven. She says she's snuck 20 hidden cameras in his room. Later, she reveals she's been wire-tapping everyone remotely associated with Seiji ever in an effort to "protect" him.
  • Stalking Is Love: Apparently, Seiji is not all that bothered by her extreme stalker tendencies. Averted in the manga where he's at least shown to be disturbed by it.
  • Supreme Chef: She gets a 100% rating for her cooking skills.
  • Surgical Impersonation: Of Celty's head so that Seiji would love her.
  • Too Dumb to Live: She breaks into the room of a guy who barely knows her and loudly announcing her presence to him, without maybe considering first that he might be dangerous.
  • Walking Spoiler: Just knowing her name is a huge spoiler for the first arc of the series.
  • Yandere: If you thought actually getting together with Seiji would make her lighten up on the crazy stalking, you'd be wrong. And then there's the fact that she's planning to eat Celty's head if she ever finds it.

    Saki Mikajima 
Voiced by: Misato Fukuen (JP), Cassandra Lee (EN)

"You'll come back. That's how things are. So you can love all the other girls you want, and I don't care. In the end you'll love me more than you love them."

A young woman currently residing in the hospital who is Masaomi's (ex?) girlfriend and follows Izaya's orders to the very letter.
  • Abusive Parents: Implied to have these. They definitely weren't visiting her in the hospital, and it explains her initial dependency on Izaya.
  • Cold-Blooded Torture: Both her legs were broken due to a plan by the Blue Squares' leader to lure Kida out.
  • Curtains Match the Window: After her hair fades to its original colour. In flashbacks, it was dyed brown.
  • Disabled Love Interest: Subverted. It turns out she was faking it.
  • Extreme Doormat: She'll listen to whatever Izaya tells her to do, even if it means endangering her life. Even after she betrays him, she continues loyally obeying him afterward, too.
  • Fangirl: For Izaya until she gets over him.
  • Honey Trap: And Kida knew this from the beginning but went along with it anyway. He even knew that Saki was feigning illness to make him feel guilty, but he also went along with it.
  • I Want My Beloved to Be Happy: Saki is the one that motivates Kida into returning to Ikebukuro for Anri and Mikado ("You can always come home to me, Masaomi. Don't forget that. But I won't be able to help your friends. That's something only you can do, isn't it?")
  • Lazy Bum: Morally so; she pretty much flat out tells Masaomi, "just don't bother making up your own mind because Izaya will take care of everything for you!"
  • My Master, Right or Wrong: Saki worships the ground Izaya walks on, and even admits that if he told her to jump off a cliff and die, she would do so. Subverted at the end when she betrays him out of love for Masaomi, spilling the beans on Izaya's plans to Simon.
  • Official Couple: With Masaomi.
  • Perpetual Smiler: Saki always has a serene smile on her face, no matter what happens to her. The only time she actually stops smiling is when she phones the Russian Sushi and confesses to what Izaya has been doing all along.
  • Satellite Character: To Izaya and Masaomi.
  • Satellite Love Interest: She's seen as this to some people because her background isn't really explained. After all, she was working with Izaya to get close to Kida, thus her personality isn't fleshed out like most of the characters.
  • Understanding Girlfriend: She supports Kida in every decision he makes, including returning to Ikebukuro in season 2.
  • Walking the Earth: Leaves Ikebukuro with Kida at the end of the series after they reconcile.
  • Yandere: The way she talks to Kida about them being "destined" has shades of this but she's a mild example. Unlike others, she's truly ok with him seeing other girls because she believes they're Romantic False Leads.
  • You Can't Fight Fate: Says that she and Kida are destined to each other whether he likes it or not, and so it's ok with her if he sees other girls because no matter what he will always come back to her, because "Izaya says so."

    Kasuka Heiwajima (stage name "Yuhei Hanejima") 
Voiced by: Daisuke Kishio & Kanae Oki (JP), Blake Lewis (season 1), Vic Mignogna (season 2) (EN)

A famous model and actor who got his start after saving a talent scout who made the mistake of attempting to scout his older brother Shizuo. While amazingly talented as an actor, Kasuka's natural demeanor is very robotic and unemotional.

With the occasional mention of his brother aside, Kasuka usually keeps his personal and family life under wraps. Journalists who insist on interviewing his family usually find their cars mysteriously overturned.

Affiliated with the Dollars, by proxy of Shizuo.
  • Accidental Athlete: Accidental actor, actually, but the principle is the same.
  • Aloof Big Brother: Inverted. He's the younger brother. He was rather aloof and unemotional from the very start. Doesn't stop him and Shizuo from being close, though.
  • Ambiguous Disorder: He claims that he feels no emotion and have difficulties understanding other people. The reason he became an actor is so that he can "feel".
  • Awesome, Dear Boy: In-Universe: Kasuka seems to have a soft spot for his B-movie vampire ninja character, Carmilla Saizou. He even quotes his lines in life or death situations.
  • The Beard: In the second season, he and the Idol Singer/Serial Killer Ruri decided to pretend to be couple in order to rile up the reporters that had surrounded the entrance to Kasuka's apartment as a way to keep Nebula's employees from getting close to Ruri.
  • Becoming the Mask: His couple act with Ruri was initially meant to be a temporary ruse, but they develop genuine feelings for each other later on.
  • Birds of a Feather: With Ruri. They're both emotionally distant idols who sync together perfectly.
  • Bishounen: He's a popular actor known for his incredible good-looks. The novels really drive this point by saying that the word "beautiful" might as well be made to describe him.
  • Broken Ace: Brilliant (he managed to turn a million yen into 1.2 billion in a month just from smart investing), talented, does his own stunts, looks like he walked out of a shojo manga, and can even sing. He also admits that he doesn't actually feel emotion at all unless he's in a role — In Ruri's words, he's "a monster who wants to be human."
  • Bunny-Ears Lawyer: Apart from his unnervingly Stoic, there have been anecdotes of strange behavior such as nonchalantly attempting to sever his own pinky finger or unnerving a stalker badly enough to turn themselves in to the police.
  • Cloudcuckoolander: Kasuka is...odd. For example, he assumed that the reason his brother kept changing jobs was because he didn't have enough clothes, so he bought him a whole bunch of bartender uniforms so that he could keep that job.
  • Creepy Monotone: When he's not on the job.
  • Cross-Cast Role: Kasuka's faux-encyclopedia entry notes that he's done a few crossdressing/female roles...
  • Dull Surprise: Kasuka is capable of showing (fake) emotion when he's acting, but in real life...
    Shinra: You need to smile a little bit when you give cats to other people to pet. Otherwise it's just scary.
    Kasuka: ...But I am smiling.
  • Early-Bird Cameo: Cameos in the anime for an episode even though he wasn't properly introduced until volume 4.
  • Emotionless Boy: He can't express any emotion unless he's playing a role.
  • Empty Eyes: Kasuka's eyes are always flat and non-reflective, to further emphasize his incapability to emote.
  • Expy: Kasuka bears an uncanny resemblance to Baccano!'s Charon Walken, which is noted by Saki in volume 8.
  • Florence Nightingale Effect: How he meets Ruri. He finds her after she was sent flying by his brother while she was in one of her Hollywood disguises. He then takes her to his apartment where he takes care of her until she heals (which is fast thanks to her regeneration powers) and promises to not reveal her identity to anyone.
  • I Just Want to Be Normal: According to Ruri, he's a "monster trying to become human".
  • Kindhearted Cat Lover: He loves cats, and owns one that is named Yuigadokusonmaru.
  • Large Ham: While acting, Kasuka really gets into the role.
    • In the second OVA, Simon kidnaps him and his film crew and takes them to Russia Sushi to keep them from filming Celty. Kasuka just rolls with it, and turns it into a kind-hearted critique of the restaurant.
    Kadota: I can't believe they're still filming this.
  • Master Actor: Again, normally he has zero emotion. But you wouldn't be able to tell from his acting.
  • Ninja Pirate Zombie Robot: In his first big movie role he starred as a Vampire Ninja.
  • Old Shame: An In-Universe subversion. Kasuka got his big start as a breakout actor in an otherwise very campy Toku series. While everyone else seems to regard it as an Old Shame (He ranked #3 on a countdown for "Best Actors and Actresses Who Don't Get To Pick Their Roles"), he asserts that Vampire Ninja Carmilla Saizou is an awesome character and insists on reprising the role in the series' movie.
  • One Head Taller: Than Ruri.
  • The Quiet One: Outside of his job, he rarely talks unless necessary.
  • Secret Keeper: He knows Ruri is the serial killer Hollywood, but he promises to not tell anyone.
  • Seen It All: The completely deadpan type.
  • Shout-Out: Some of the items listed on his faux-Wiki page (particularly his manager's claim that he's a thousand-year-old vampire) are suspiciously parallel to a certain real-life performer.
  • Sibling Yin-Yang: He's stoic and unemotional. His brother Shizuo has a Hair-Trigger Temper.
  • Significant Anagram: The kanji used for his stage name can be rearranged to form his real name.
  • Significant Birth Date: His birthday is on the national cat day in Japan.
  • Stage Name: His real name is Kasuka Heiwajima, but he uses the name "Yuhei Hanejima" for his acting career.
  • The Stoic: A razor-sharp contrast to Shizuo.
  • Sugar and Ice Personality: He may be emotionless like a robot, but he really cares about his brother and his girlfriend Ruri and he also has a soft spot for his cat Dokunsonmaru.
  • Teen Idol: Was a celebrity since his early youth.
  • Tin Man: His reason for becoming an actor is because he wanted to feel the emotions that other people feel through his roles.
  • Took the Bad Film Seriously: In-universe; Kasuka has a habit of both a) taking pretty much any role that's offered to him ever, no matter how silly (see the aforementioned Vampire Ninja), and b) acting the hell out of it anyways.
  • Too Spicy for Yog Sothoth: Kasuka once scared a stalker into turning themselves in to the police simply by sitting quietly. For twenty hours.
  • When He Smiles: See for yourself. Too bad it's all fake.

    Rio Kamichika 
Voiced by: Haruka Tomatsu (JP), Stephanie Sheh (EN)

A girl who ran away from home after discovering her father was having an affair and was later kidnapped and rescued by Celty. She was an anime-only character by Narita at first, but then he later used her as a minor character in the novel.

    Tom Tanaka 
* sigh* Shizuo's at it again...

Ikebukuro's resident "Debt Collector" and was Shizuo's Sempai in middle school. He's a pretty nice and normal guy that keeps Shizuo under control when he rages.
  • All Devouring Black Hole Loan Sharks: Subverted; Tom is generally a pretty nice guy and would rather avoid violent confrontation. He employs Shizuo mainly to use his name to scare his clients into paying him back on time, since only a complete idiot would pick a fight with Shizuo Heiwajima. Guess what kind of people a debt collector meets?
  • Alliterative Name: Tom Tanaka.
  • Ambiguously Brown: Has noticeably darker skin than many characters, not to mention the dreadlocks, and his name suggests that he might have some non-Japanese ancestry.
  • Benevolent Boss: One of the main reasons Shizuo is able to keep his job.
  • Brown Eyes: To emphasize how "normal" he is compared to the rest of the cast.
  • Distressed Dude: Back in middle school, some other kids would occasionally get the idea that kidnapping Shizuo's sempai would give them leverage in a fight. This is because they were idiots.
  • Face Palm: Default reaction when someone (usually the person he's getting to pay their debt) pisses Shizuo off.
  • Heterosexual Life-Partners: With Shizuo.
  • Improbable Hairstyle: Sports dreadlocks, very neat ones at that, probably not all that improbable from a maintenance prospective, but is somewhat rare in the world of anime.
  • Kid with the Leash: Subverted, as Tom takes offense at the suggestion — Shizuo is his friend, not his attack dog.
    Tom: The kid's not a dog, and he's not on anyone's side to begin with. You try talking to him and you'll know. He's far more normal than you may think.
  • Kick the Dog and/or Kick the Son of a Bitch: In Izaya's flashback he is seen stepping on the head of Takashi Nasujima-sensei as Nasujima lowers his head begging for mercy. It's also possible he's kicked other puppies collecting from debtors that are are Too Dumb to Live or just dirt-poor. It's strictly professional, of course.

    Shingen Kishitani 
Voiced by: Akio Ohtsuka (JP), Doug Stone (EN)

Shinra's father and source of most of his weirdness, Shingen was living in America up until recently, when he decided to return to Japan and impose himself on his son for reasons he has yet to disclose. Believing Tokyo's air to be terribly filthy and unfit for breathing, he opts to wear a gas mask 24/7.
  • Badass: His introduction involves him stoically mouthing off at three armed members of the Yellow which point they kick the crap out of him. Celty was there to pick him up, and it gave him a false sense of bravado since he thought she would step in. She didn't.
  • Brother Chuck: drops off of the radar completely after episode 14, one episode after he was introduced. He doesn't appear again until season 2
  • Bunny-Ears Lawyer: He's a brilliant doctor by all accounts, but he's obsessed with air pollution, hence the gas mask.
  • Cloudcuckoolander: No one who looks that menacing should act that goofy.
  • Cool Mask: His mask has what look like devil horns, a contrast to the cute-looking cat ears on Celty's helmet.
  • Crouching Moron, Hidden Badass: Was able to wield Saika in the past, without being driven insane by it.
  • Did I Just Say That Out Loud?: A self-acknowledged flaw.
  • The Faceless: His face was never shown in anime.
  • Fan Disservice: Was on the receiving end of an invoked Shower of Awkward by Shinra, who thought it was Celty in the shower.
  • Gas Mask Mooks: Because Tokyo's air is just so terrible. The mask stays on even when he's naked in the shower, as Shinra witnessed to his misfortune.
  • Large Ham: Generally, at the others' expense.
  • Mad Doctor: And for "mad" we mean "totally bonkers" here.
  • Papa Wolf: According to the novel, Shingen cut Celty's head off and selling Saika's sword off to Anri's parents was in order to protect Shinra from Namie's grandfather who threatened to kill Shinra if he didn't.
  • Parent with New Paramour: Vol. 4 reveals that Shingen remarried while he was in America — to a woman younger than his son.
  • Why Couldn't You Be Different?: Why couldn't you not be sexually attracted to headless women, Shinra?

    Kinnosuke Kuzuhara 

A motorcycle cop brought in to Ikebukuro to take down Celty. Often just a little bit too into chasing down suspects, to the point that he causes as many accidents as he prevents.

    Shuji Niekawa 
Voiced by: Rikiya Koyama (JP), Joe J. Thomas (EN)

The father of Haruna and a news reporter writing a magazine story on the strongest person in Ikebukuro (i.e. Shizuo).

    Haruna Niekawa 
Voiced by: Mai Nakahara (JP), Sandy Fox (EN)

A high school student who mysteriously transferred out of Raira Academy after an incident involving her and Nasujima.

    Takashi Nasujima 
Voiced by: Yuji Ueda (JP), Kirk Thornton (EN)

A teacher at Raira Academy who takes an interest in Anri.
  • Butt Monkey: The poor guy is in trouble with lots of people. And constantly finds himself being thrust into worse situations. But, then again, he deserves it... maybe.
  • Curtains Match the Window
  • Hot for Student: Dated Haruna Niekawa, who transferred school supposedly because of their relationship, but changed his preferences to Anri. This changes after he finds out Anri is the original possessor of Saika and runs away in fear following her fight with Haruna, who was thought to be Saika.
  • Mugging the Monster: A panicked Nasujima runs from Anri and tries to rob the first person he sees — who happens to be Shizuo.
  • Stalker with a Crush: He tends to follows Anri around quite a bit during school and even tries to visit her apartment in Episode 16.

Voiced by: Wataru Takagi (JP), Kyle Hebert (EN)

A jerkass member of the Yellow Scarves who becomes an antagonist in the second half of the series.
  • Big Bad Wannabe: Views himself as a credible threat and criminal genius ready to take the the city by storm. While he causes a lot of trouble, he's largely a pawn to Izaya.
  • Butt Monkey: He gets (deservedly) beaten-up a lot.
  • Dirty Coward
  • Ephebophile: Seeing Anri's er, assets, gives him a nosebleed.
  • Expy: Often compared to Dallas Genoard of Baccano!.
  • Hoist by His Own Petard: He and his fellow members of Blue Square managed to join the Yellow Scarves because nobody ever bothered giving them a background check after their old gang disbanded. One of the events leading to his arrest is the revelation that a number of Dollars pulled the same trick on him during his own recruitment drive after kicking out all of the Kida-sympathetic Scarves.
  • Humiliation Conga: He gets an eminently satisfying one in episode 24.
  • Ineffectual Sympathetic Villain: Heavy on the ineffectual, low on the sympathetic.
  • Jerkass
  • Kick Them While They Are Down: Does he ever.
  • The Mole: He was previously a member of the Blue Squares, but joined the Yellow Scarves after his old group was defeated, and gradually infiltrated them with other former Blue Squares.
  • The Starscream: He usurps Masaomi's position as leader.
  • Smug Snake: He's a stupid thug and one of Izaya's pawns, but thinks of himself as a criminal mastermind.
  • Small Name, Big Ego: See Smug Snake above.
  • Too Dumb to Live

    Ryo Takiguchi 
Voiced by: Nobuhiko Okamoto (JP) Sam Riegel (EN)

A fellow classmate of Masaomi, Ryo Takiguchi is just an average joe who likes composing his own music, playing on a harmonica, and just so happens to be a member of Dollars. He is later targeted by members of the Yellow Scarves, who beat him up horribly and leave his unconscious body next to graffiti as part of their self-declared war against Dollars. He considers leaving the organization afterward, but just can't bring himself to do it in the end, and sticks around to help out.
  • Bishounen: Just look at him!
  • Canon Foreigner: A minor character who was only introduced in the anime version.
  • Collateral Angst: Poor Takiguchi gets beaten up brutally by several of the Yellow Scarves who are actually former members of the Blue Squares. However, being a minor character, his suffering is mostly ignored in favor of Mikado's angst about Dollars in general.
  • Curtains Match the Window
  • Defector from Decadence: Takiguchi briefly considers leaving Dollars after realizing they've lost their original non-color ideology, but ends up changing his mind again in a Heartwarming Moment of Team Spirit with the other members of Dollars.
  • Delinquent: Mikado assumes this at first, but it ends up being a misunderstanding.
  • Innocent Bystander: At first, but he later becomes a Heroic Bystander when he's given the chance to help out.
  • Laser-Guided Karma: After getting beaten up by Horada's gang, Takiguchi gets some karmic retribution when he happens to be in front of a stack of boxes in a shop, right when Horada is passing by. Naturally, he "accidentally" pushes them over at this point, and causes the whole pile to fall on Horada and slow him down.
  • Last Name Basis: Everyone who knows him just calls him Takiguchi.
  • Nice Guy: Which makes his subsequent, undeserved assault by the Yellow Scarves even more cruel and painful to watch.
  • No-Holds-Barred Beatdown: The unfortunate victim of one. The beating is so severe, Takiguchi has to be hospitalized for a while afterward.
  • Number One Dime: A subtle example. Moments before he is attacked, his harmonica falls out of his pocket and is subsequently smashed by the bat that one of the thugs brings along.
  • Open Secret: Unfortunately, Mikado and Masaomi weren't the only ones who knew he was secretly a member of Dollars...
  • Peek-a-Bangs: One lock of hair partly covers his left eye.
  • Sitting on the Roof: He is apparently fond of sitting on the school's roof during his lunch break to compose his own music and play his harmonica.

Voiced by: Shiori Izawa (JP) Laura Bailey (EN)

A blonde foreigner who is introduced in the anime version as another member of Dollars. Her real name is unknown, although her username is called Siri. She carries around a "Most Desired Object" sign in Episode 8, asking people to write down what they're looking for in a journal, and later helps Anri escape from Horada and his gang.

Voiced by: Tōru Ōkawa (JP), David Lodge (EN)

An illegal immigrant from Italy. He is friends with Dotachin Kyohei's gang. Affiliated with the Dollars.
  • Anime Accent Absence: Justified in this case — Italian has pretty much the same pronounciation for words as Japanese.
  • Beady-Eyed Loser: The only character with these kinds of eyes.
  • Big "NO!": Sort of. His e-mail address is "kaztanooooooo".
  • Funny Foreigner
  • Guile Hero: Attempts this in his intro episode to escape a kidnapping, but isn't very successful. He gets to be a more successful example when he and the other Dollars work together to save Anri from Horada.
  • The Illegal: He's an illegal immigrant from Italy.
  • Lost in Translation: The dub gives him quite a thick Italian accent while Japanese dialogue is replaced with English, which makes his attempts to pass himself off as Japanese sound utterly ridiculous.
  • The Nicknamer: Kaztano seems to have a habit of adding "no" to the end of names to make them sound Italian, e.g. "Togusano" and "Dotaccino".


A trio of ganguro girls from Raira academy who frequently picked on Anri, until the Slasher attacked them.

Voiced by: Hiroki Yasumoto (JP), Kirk Thornton (EN)

The boyfriend of one of the Ganguros'. He is also a fake member of Dollars.

    Haruya Shiki 
Voiced by: Hochu Otsuka (JP) Dan Woren (EN)

An executive of the Awakusu-kai, Haruya Shiki is also one of its youngest members. He is the only Yakuza who uses honorific speech at all, except to his subordinates, and is the one responsible for dealings with the informant, Izaya. He is briefly seen in episodes 12.5 and 15 of the anime's first season, in the latter when the reporter Shuji Niekawa interviews him about the strongest person in Ikebukuro.

    Sayaka Sonohara 
Voiced by: Ayano Ishikawa (JP), Karen Strassman (EN)

Anri's mother.

    Ran Izumii 
Voiced by: Atsushi Imaruoka (JP), Doug Erholtz (EN) (season 1), Robbie Daymond (EN) (season 2)

The leader of Blue Squares that got into a confrontation with the Yellow Scarves. He was the one that kidnapped Saki and broke her legs in order to get Kida to face his gang directly. He is foiled by Kadota's gang who turn on him and rescue Saki. He is then arrested and convicted thanks to Saki's testimony. After many years, he's out of jail and he wants revenge on the people who betrayed him and ruined his life.
  • Big Brother Bully: The things he did to his brother Aoba are unbelievable. For one thing, he came out unstable at the end of it all.
  • Cain and Abel: He is the Cain to his brother's Abel despite the younger being a Manipulative Bastard.
  • Disproportionate Retribution: He beat up on Aoba just because he thinks he's The Unfavorite of the family. However, Aoba hints that really isn't the case. And then finally, he goes past the limit of physically beating him up and does something else that makes the poor kid snap and set his room on fire. And while Aoba did trick him into becoming the leader of Blue Squares, he NEVER did anything to ruin his life. Before his brother beat up on him, he was acting his normal self but when the beatings started, he started becoming more crazy but even setting the room on fire is nothing compared to what Izumi did.
  • Dumb Muscle: Or maybe not, he did perform his role in Izaya's trolling of Earthworm and Shijima pretty well.
  • Gonk
  • Jerkass
  • Rape Is a Special Kind of Evil: Mikage would have let Izumi smash Earthworm's face in or set her on fire, but not rape her.
  • Revenge: When he gets out of jail, he tells Izaya that he only used the Hot Pot group so he can get information on those he wants revenge on and kill them. He has his eyes set for Aoba, Kida, Kadota, Walker and Izaya. Crosses over with Disproportionate Retribution.
  • Scarf of Asskicking
  • Smoking Is Cool: Subverted. He likes smoking but Aoba uses this to his advantage to set his room on fire. This causes their dad to punch him and shout that it was his fault the room caught fire.
  • The Unfavorite: He thinks he's this compared to Aoba.
  • Unwitting Pawn: Aoba uses him to control Blue Squares. Of course, because he's a dumbass he nearly ruins it for Aoba.
  • Would Hurt a Child: He didn't hesitate to beat his little brother. He was also going to rape a middle school girl after breaking her both legs
  • Would Hit a Girl: Or break her legs for that matter. And fingers. And shove a rag into her mouth and light it on fire.

    Mairu and Kururi Orihara 

Voiced by:
Mairu: Eri Kitamura (JP) Candalee Whitmore (season 1), G.K Bowes (season 2) (EN)
Kururi: Hisako Kanemoto (JP) Candalee Whitmore (season 1), Bridget Hoffman (season 2) (EN)

The younger twin sisters of Izaya.

Mairu is the one on the right, in white. Kururi is the one on the left, in black.
  • Always Identical Twins: Subverted. Mairu and Kururi are fraternal twins despite the matching outfits and creepiness.
  • Annoying Younger Siblings: Izaya does not like them at all. For what it's worth, though, they're not particularly fond of him either.
  • Badass: Both of them.
  • Badass Adorable: Especially Mairu, who she was capable of taking on the Yellow Scarves members single-handedly as seen in the second OVA.
  • Bi the Way: Mairu, though she prefers girls over boys and openly says so. Kururi's heavily implied to be bisexual as well, but not openly so. (But since they're Polar Opposite Twins, it can be assumed that Kururi prefers boys over girls.)
    Mairu: "I swing both ways when it comes to love and sex drive! But I already have a male partner in mind, so forget it. As for girls, there is no limit on how many I can go out with, so keep it in mind when you confess your love!"
  • Brains and Brawn: Kururi's the brains, Mairu's the brawn.
  • Brown Eyes: In the anime. Their irises tends to be inconsistent in the light novels, ranging from gold-colored to blue.
  • Cloud Cuckoo Landers: Probably the biggest ones in the cast.
  • Cool Big Sis: They're quick to take Akane under their wing once she starts training at their dojo.
  • Creepy Twins
  • Custom Uniform: Both of them. Mairu wears a nonstandard black Sailor Fuku, while Kururi wears a gym uniform.
  • Custom Uniform of Sexy: Kururi's uniform emphasizes this aspect, since she opts to wear the school's gym uniform instead. This doesn't seem so bad until one realizes just how skimpy the bloomers are...
  • Cute and Psycho
  • The Dividual: Twindividual to be exact. They don't even consider themselves separate people.
    Shoro: You two are such a great pair. Honestly.
    Mai: We're not a pair.
    Kyo: We're one person. You're insulting the real pairs in this world by saying we're a pair. Though none of them are here to hear you, you should still apologize to them.
  • The Dog Bites Back: Bullying the crazy girls is highly ill-advised. Kururi will probably frame you for arson if you do, and we're still not sure what Mairu did to the last one that tried.
  • Early-Bird Cameo: The twins show up briefly in episode 8 of the Durarara anime note , but don't get properly introduced until episode 25.
  • Establishing Character Moment: In the books, Mairu is introduced reading schoolgirl fetish porn in the middle of class and commenting very loudly on the subject matter.
  • Fangirls: Both of them are raging Kasuka fangirls.
  • I Just Want to Be Special: Or as their brother puts it, "what a pair of intolerable eighth-grade-diseasenote  patients." When asked what he meant by that, he simply suggested googling it.
  • Intergenerational Friendship: With Shizuo, of all people.
  • Kick Chick: Both of them are, since Kururi has no problem with kicking men who are harassing her and her sister right in the groin, and Mairu doesn't mind flashing her panties when delivering her own powerful kicks backed by iron-plated shoes.
  • Lovable Sex Maniacs: Both of them, but Mairu is more obvious about it.
  • Ms. Fanservice: Both of them, but Mairu seems to like invoking this.
    • At one point, the two of them hung out with Aoba at the school pool while the latter had to think. Aoba ends up leaving because seeing them in swimsuits was "too distracting".
  • Morality Pets: To Aoba to the point where he outright states for Blue Squares not to involve them in this Gang War because he has taking a liking to them. Especially Kururi.
  • Noodle Incident: Whatever happened between Mairu and the schoolgirl bully she dragged into the lavatory, especially after Mairu emerges holding the girl's bra, is never explained.
  • Polar Opposite Twins: They deliberately cultivated themselves to be such, going as far as to flip a coin to see who got to have which trait. Izaya says that they don't actually consider themselves to be separate people, and that they're invoking the real-world equivalent of RPG party balance.
    • According to Shinra, this is a direct reaction against some of the emotional abuse Izaya put them through. When they were as young as five, Izaya would, as a social experiment, suggest to them that one of them should just kill themselves if they're just going to be identical, redundant copies of each other. Not quite being like other people, they decided the solution was to get out some dice, assign as many different character traits they could think of between them, and live with these new "personalities" for the rest of their lives.
  • Red Eyes, Take Warning: Just like Izaya, they tend to get depicted with devilish eyes.
  • Sibling Seniority Squabble: Averted. Mairu always addresses her twin as "Kuru-nee" (big sister).
  • Single-Minded Twins: Despite the Polar Opposite Twins personas, Mairu and Kururi don't actually consider themselves as individuals. This is best evidenced by the fact that, on the internet, the two switch roles entirely — Mairu's practically a Lurker while Kururi never shuts up.
  • Trickster Twins: They're called troublemakers by Izaya, and are completely uninhibited by social norms.
  • Twin Banter: Particularly on the internet.
  • Twincest: Mairu and Kururi are close, really close. They kiss on-screen.
  • Twin Threesome Fantasy: Invoked; They have no problem with hooking up with the same guy and they both really seem to like Aoba at the moment.
  • Verbal Tic: Kururi's speech is very brief and somewhat disjointed. She also almost never raises her voice above a whisper. On the internet, she speaks normally.
    • Averted in the second OVA, where she speaks complete sentences in a normal tone of voice.
  • Yuri Fan: After Kida tells a somewhat-dirty joke in the chatroom:
    Kyo (Kururi): Speaking of which, um... if Bakyura-san (Kida) is a female, I would really be confused as to how to react. If two females are to blow the same clarinet...and kind of kiss that would have been just beautiful and elegant and worthy of a place in my permanent memory. Should I say dreamy or unrivaled? Anyway, that's how I would feel.
    Mai (Mairu): So erotic!
  • Attack Hello: Mairu has been greeting Izaya with attempts to break his neck ever since Shizuo jokingly said he'd introduce them to Kasuka if they ever managed to kill him.
  • Big Sister Instinct: Inverted as she's the younger twin, but she has this towards Kururi. When the thugs in the second OVA knocked Kururi down, Mairu's response was to beat the shit out of them.
    • In the second season, she puts Kururi behind her and takes a stance when they encounter an injured Egor.
  • Cute Bruiser: She's skilled in martial arts. If a thug harasses her or her twin, you can bet that she'll kick their ass.
  • Genki Girl: She's the energetic twin and an absolute chatterbox with a manic smile.
  • Meganekko: Subverted. Mairu wears glasses, but she doesn't have the sweet and innocent personality to go along with it.
  • Murderous Thighs: In a fight with some thugs in the OVA.
  • Porn Stash: Mairu has one, although it's hard to call it a stash when she carries at least one porn mag on her person at any given time and reads them in public.
  • She-Fu: As demonstrated in the second OVA.
  • Waif-Fu: Justified because she regularly attends a gym school, where she learns self-defense techniques.
  • Boobs of Steel: Inverted, her bust size is noticeably larger than her sister's and most girls her age, and she is said to have taken the same martial arts classes and is as capable at it as Mairu, but Kururi isn't shown utilizing it like her sister.
  • Cat Smile: In the second OVA.
  • Combat Pragmatist: If she's ever in the middle of conflict, she has pepper spray handy.
  • Emotionless Girl: As the quiet twin, she's laconic and typically inexpressive.
  • A Handful for an Eye: Those who try to mess with her get pepper-sprayed in the eyes.
  • The Quiet One: She generally only talks when necessary and when she does, she only says what she needs to say. When she's in a chatroom, on the other hand...
  • Rapid-Fire Typing: Kururi's fast typing allows her to talk nearly non-stop online, at least until she hits the word limit.
  • Ship Tease: It's heavily hinted that she harbors a crush on Aoba.
  • The Stoic
  • Sugar and Ice Personality: She's inexpressive and quiet most of the time, yet she's affectionate and open to the people she's fond of, such as her sister and Aoba.