History Characters / ArakawaUnderTheBridge

!!Kou Ichinomiya a.k.a. Recruit

!!Nino-san

!!The Mayor

!!Hoshi

!Sister

!!Stella

!!Maria

!!The Iron Brothers (Tetsuo and Tetsuro)

!!Toru "Shiro" Shirai

!!P-ko

!!Takai

!Shimazaki

!Seki Ichinomiya

!!Last Samurai

!!Billy

!!Jacqueline

!!Captain a.k.a. "Potachi"

!!Amazoness

!!The Tengu Brothers

!!Kameari

* {{Bishonen}}: Takes it UpToEleven after completing Jacqueline's weight loss program.

* OnlySaneMan: To [[UpToEleven an extreme]], considering the type of place that is the [[{{Cloudcuckooland}} Arakawa's riverbank village]], although at some point he just plays along with them.

* BananaPeel: Her "security" system for her farming consists mostly of banana peels that she is ''sure'' someone will eventually [[SlipperySkid slip with]]. However, due to her clumsiness (and shown in her first appearance), she is the only one who falls for it. It's taken UpToEleven in the live-action drama, too.

Once a master hairdresser and an attractive man, he got sick and tired of his lifestyle and ran away with little more than a katana from his family's house. After an accidental meeting with the Mayor under the bridge, his "samurai spirit" was awakened, and now he speaks in an older Japanese dialect and wears a topknot as he lives with thkkkke community by the Arakawa river. He still uses that same katana to cut the hair of the Arakawa people.

* CoolBigSis: She acts as a cool sister, bordering even at OneeSama territory, although exclusively for the girls and children. The male part of the riverbank's village usually receives a solid portion of bitchiness hidden behind a beautiful smile.

* BerserkButton: He doesn't like being called "Leech", especially once it started to catch out with the rest of the riverbank's villagers. The first time, [[RantInducingSlight he didn't take it well]].

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* YouGottaHaveBlueHair: Her hair is pink, which stands out since everyone else in the cast has realistic hair colors.

* NunTooHoly: Sister takes seriously his position as a nun, although he is a paranoid soldier who threats the Arakawa's community by the gun.

* WholesomeCrossdresser: Sister uses a nun's habit (though his military suit is below it), but there are ocassions (either in {{Imagine Spot}}s or acting scenes) where he will use other feminine clothes such as a schoolgirl outfit, complete with a barette]].

* BeautyMark: She has a mole under her left eye, that indicates one of her many attractive points as a beautiful woman.

* NotSoDifferent: Although he sees Hoshi as a petty person, whenever they team up, Rec becomes as petty as him.

* NotSoDifferent: Hoshi has more in common with Rec than he would expect, especially when it concerns their feelings towards Nino, as they end up acting very childish just to get her attention.

* SuperOCD: He believes that, if he walks out off his white line, his wife and child would become ''chickens''. And since no one can prove him otherwise, the rest of the community don't want to risk it, either.

* NiceGuy: He is probably one of the nicest guys you will ever find in the series, as he doesn't act petty as Rec or Hoshi, and he only gets threaten when he isn't fully walking with his line striper, as it's a SeriousBusiness for him.

* SuperOCD: He believes that, if he walks out off his white line, his wife and child would become ''chicken''. And since no one can prove him otherwise, the rest of the community don't want to risk it, either.

* {{Adorkable}}: Even when P-ko messes up something, she comes up as a very adorable young woman who tries her best.

* WholesomeCrossdresser: Sister uses a nun's habit (though his military suit is below it), but there are ocassions (either in {{Imagine Spot}}s or acting scenes) where he will use other feminine clothes such as a schoolgirl outfit, complete with a [[HairDecorations barette]].

A young girl from England who was raised by Sister in an orphanage. She has a noticeable crush on him and appears sweet in general, but she is actually highly skilled in martial arts and is rather accomplished in several underworld trades. She can also transform herself into a musclebound man three times her size thanks to Sister's training. She serves as a yakuza boss for the community.

Once a master hairdresser and an attractive man, he got sick and tired of his lifestyle and ran away with little more than a katana from his family's house. After an accidental meeting with the Mayor under the bridge, his "samurai spirit" was awakened, and now he speaks in an older Japanese dialect and wears a topknot as he lives with the community by the Arakawa river. He still uses that same katana to cut the hair of the Arakawa people.

* ForceFeeding: Her idea of hospitality around friends and her boyfriend, which is a Venusian trait, is force feeding them the fishes she catch for dinner.

* AmbiguouslyHuman: Nino is presented as someone who could be very human in appearance... unless her unfamiliarity with what a normal human would do (especially a human ''girl'') in a relationship, or the fact that she can ''breath'' under water, drop various hints that she isn't actually human.

* SatelliteCharacter: In almost every single one of her appearances, she appears next to Billy, her lover, because they are an inseparable couple.

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* DoggedNiceGuy: Only to Nino. He has known her for a couple of years, and fell in love with her ''at first sight''. His original plan was approaching her little by little to win her heart... until he hears that Rec (who was just a newbie in the community) is "her boyfriend". Instead of feeling fully rejected, Hoshi attempts to be more spectacular to gain her attention (because he notices that Nino and Rec's relationship doesn't advance too much).

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* LoveAtFirstPunch: He met Maria in the middle of a battlefield when she used one of her attacks to leave him bald. He ''immediately'' fell head over heels in love of her.
%%* LoveMartyr: To Maria.

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* EnfantTerrible: Don't fall for her cuteness... because you will get hurt. And she was trained by Sister, from all people.

%%* LittleMissBadass

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* RoseHairedSweetie: The BitchInSheepsClothing variant, as she's only sweet at first glance. She's actually a sadist who loves to bully others. She can be nice to the girls, though.

* TheSociopath: ComedicSociopathy at most, but in the episode 7 of season 2, she actually goes ''insane'' while locked for several days with the people she feels she shouldn't be bullying (ie. girls).

* TheVamp: Maria comes from the "treat men like shit and they'll be fawning over you" variety. It works perfectly with Sister, who fell in love with her back during their battlefield days.

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A young woman who lives under the bridge during the growing season. While cute, she's horribly clumsy. She has an unrequited love in the Mayor. She runs a vegetable farm for the community.

* OlderThanTheyLook: According to the official info, P-ko is 22 years old, but she looks somewhat younger.

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* LimitedWardrobe: No matter the ocassion, he always uses a pair dressing pants, a white shirt, and his red tie.

* CrazyJealousGuy: Hoshi gets insanely jealous about Rec, because he also has feelings for Nino. Although she barely [[ObliviousToLove notices his own feelings towards her]].

* {{Expressive Mask}}s: Since they do not take their masks out, these always express their emotions. This is, however, subverted in the drama, since they look more as tin-luchador masks and they cannot express the meaning of their words.

* AmbiguouslyHuman: She claims that there is a ''slight'' probability that she is [[{{Cloudcuckoolander}} actually part vegetable]], as her father loves farming, as much as her.

** The second time is when she gets convinced by a fortune teller that she may change her career. However, she becomes rather useful when Rec and the rest of the Arakawa's community is looking for Nino in the last arc of the manga.

* BewareTheNiceOnes: Despite her fragile appearance and politeness, she is still a former yakuza queen who quit her old life to be with Billy. If someone pushes her buttons enough, she wouldn't mind to use her former yakuza's kimono as a way to show her power to the rest of the mobs.

* NoGuyWantsAnAmazon: She believes that no man would love her, because she is too forceful onto the guys she likes. Her "brothers" seem to think otherwise, though, as they only encourage her to become more "girly".

* ValleyGirl: Her Saitama dialect is translated in the anime and the manga as a "valley girl" accent, and her fixation in many accesories that would make her look girly, adds the full "girl of the valley" image.
* YoungerThanTheyLook: Amazoness is likely to be 16 years old, although she is very tall and buff.

* OnlyKnownByTheirNickname: It's never revealed her real name, and she is commonly known as "Nino" or "Nino-san". Her name comes from the tag "Class 2-3" (''Ni-no-san'') on the tracker suit's jersey that she always wears.

* TheAce: He is good at everything, but that also works against his favor in some ways. It is the result of his father's teachings under their family's mantra.

* {{Bookworm}}: He started reading technical books when he was a ''baby''. He is by far one of the smartest members of the Arakawa's community.

* ButtMonkey: Since he is the FishOutOfWater from the Arakawa's community, he is the only one who doesn't get their idiosyncrasies. He is also often made fun by them, because his normal-world's logic doesn't work for ''them''.

* DebtDetester: His family's mantra and principle is "Never put yourself in debt to anyone", as a result, he always pays all debts as quickly as possible... except when he finds himself in a quandry when a venusian who lives under a bridge saves his life.
* EmbarrassingNickname: Who on Earth would like to be known as "Recruit" (especially considering his company's job position)?
* FishOutOfWater: Rec is the only member of the Arakawa's village that applies "normal" logic to everything that happens there.
* IOweYouMyLife: He believes that this is what will happen if he becomes indebted to someone. Except ''that'' is exactly what happens when Nino saves him the first time they meet, becoming lovers as a result.
* IconicItem: His red tie that has the Ichinomiya family's mantra embroidered on it.
* KansaiRegionalAccent: For some unknown reason, it pops up when he becomes ''very'' angry.
* LimitedWardrobe: He always uses a pair dressing pants, a shirt and his red tie.

* NonIdleRich: The Ichinomiyas are practically rich, and he has a high position in their own company. However, since the Mayor doesn't want any of his own money (and Rec doesn't want to be seen as a "leech"), the best he could do is getting a job as a teacher for the younger members of the riverbank's community.
* NotSoDifferent: He sees Hoshi as a petty person, but when they team up, he becomes as petty as him.
* OfficialCouple: He is paired with Nino ever since the first chapter/episode. [[spoiler: They are literally their respective "other halves"]].

* OnlySaneMan: To [[UpToEleven a extreme]], considering the type of place that is the [[{{Cloudcuckooland}} Arakawa's riverbank village]], and at some point he just plays along with them.
* WellDoneSonGuy: This is how Rec sees his relationship with his father. Rec's motivation for doing what he tells him is because he wants him to recognize his own merits, which he often doesn't. (''So much'' that Takai sees himself as his dad's replacement... to a ''creepy'' degree).

Rec's love interest and the reason he lives under the bridge. A {{Cloudcuckoolander}} who believes she's a Venusian (she is actually from Venus, as it is revealed later in the story). She has a strange obsession with fishing some of the creatures that live in the riverbed and provides them for the community.

** Trying to take Rec from her, gets some [[NotSoStoic interesting responses]], too.
* {{Cloudcuckoolander}}: She could be this if you don't buy her Venusian story... [[ArkhamsRazor which turns out to be true]].
* ExpressiveHair: Her hair acts as an antenna for some weird reason.
* ForceFeeding: Her idea of hospitality around friends and her boyfriend, which is a Venusian trait, is force feeding them the fishes she caught for dinner.
* HairOfGoldHeartOfGold: She is a blonde, and her heart is too pure, considering that she is an stranger to normal earthling topics as "relationships". She can also sense from far away when a person is evil or not.
* HeroicBSOD: After she finds out that Hoshi used her cosmic tapes to record a new song (and all the blame is turned against Rec), she gets mad enough that she climbs a telephone pole.
* HiddenBuxom: Since Nino is always seen wearing a tracker suit's jersey, no one could notice that she has big breasts.
* HumanAliens: She is originally presented as an [[AmbiguouslyHuman ambiguous human]] who claims to be from Venus, but actually her claims are true, as she was left behind by her Venusian parents, under the care of the Mayor.
* InnocentBlueEyes: She has a pure heart and soul, and her naïvety is often played with in the rest of the series.

* MasculineGirlFeminineBoy: She is the Masculine Girl to Rec's Feminine Boy, to some extent, as she is unfamiliar with what a normal girl is supposed to be doing in a relationship. That, and that Rec is supposed to have a "heart of a maiden".
* MegatonPunch: Is quite capable of taking out her anger on someone, due to her unnatural strength.

* OfficialCouple: She is paired up with Rec ever since the very start. [[spoiler: They become their respective literal "other halves" at the end of the series.]]
* OnlyKnownByTheirNickname: Her name comes from the tag "Class 2-3" (''Ni-no-san'') on the tracker suit's jersey that she always wears.

* SelectiveObliviousness: She ignores everything Hoshi throws her way, but if [[SingleTargetSexuality Rec does something romantic]], she's touched. That is, of course, "if" she notices it.
* SheCleansUpNicely: Just give her any kind of cute or pretty feminine clothing, and she would look gorgeous under Rec (and Hoshi)'s eyes.
* SingleTargetSexuality: Towards Rec, because not only she saved him from drowning at their first meeting, or because she wanted to be his girlfriend, it's because [[spoiler: Rec ended up being her "other half"]].

* SugarAndIcePersonality: Nino is notably seen as distant with whatever happens around her, unless she enjoys herself. It's even noted by the Mayor that she has ''changed'' once it seems that she fell in love with Rec, as well.
* VictoriasSecretCompartment: Nino keeps a lot of fish in her jersey's jacket.

The head of the Arakawa community. An odd man that constantly wears a kappa suit, he manages to corral and lead the members of the village with a good amount of (misguided) skill.

* ChekhovsGunman: Who could have guessed that a man who believes he is a {{kappa}}, is actually one of the main moving figures behind the whole plot of the series? And only for the sake of Nino and the secrets that lay under the Arakawa's riverbed...
* {{Cloudcuckoolander}}: The Mayor claims he is a real kappa... but his [[PeopleInRubberSuits rubber suit]] differs. And everyone buys the idea that he is a mythical creature (even Rec, if only for a few minutes).
* CrouchingMoronHiddenBadass: He is one of the most mysterious people that live on the Arakawa's riverbank, as he has saved many of the villagers' lives in his lifetime.
* TheFaceless: We never see his real face. Not even when he is doing an illusion-magic performance or when he is out of the kappa suit.
* FullBodyDisguise: Despite his claims as a mythical creature, he is only wearing a disguise.
* LineOfSightName: This is how the Mayor names people once they become members of the community.
* ObfuscatingStupidity: The Mayor has had moments of deep insight at times, belying the aloof nature he normally sports. This is also considering his "man behind the curtains" position, once he leaves the kappa suit aside.
* ObliviousToLove: Everyone knows that P-ko loves him, but apparently (unless he is plainly [[OfbuscatingStupidity ignoring it]]) he doesn't know anything about her crush on him. [[spoiler: At the end, it's implied that they end up together, or at least, live with each other]].
* PapaWolf: The Mayor is very protective to Nino and her well-being, as she was left behind by her biological parents as part of some deal with him.

* TeamDad: He is the highest-positioned member of the Arakawa's community, and although he is always ObfuscatingStupidity, he is always going to support everyone in the riverbank.

* ButtMonkey: Once Rec starts living in the riverbank, he gets on-par moments with him. He starts being the butt of the jokes once he finds out that Nino considers Rec as her boyfriend, but not him.

* CrazyJealousGuy: Hoshi gets crazily jealous on Rec, just because of Nino. Although she barely [[ObliviousToLove even notices]].
* DoggedNiceGuy: Only to Nino. He has known her for a couple of years, and fell in love with her ''at first sight''. His plan was approaching her little by little to win her heart... until he hears that Rec is "her boyfriend". Instead of feeling fully rejected, Hoshi attempts to be more spectacular to gain her attention (because he notices that Nino and Rec's relationship doesn't advance too much).
* EvenEvilHasStandards: He wants and intends to ruin Rec. So, he was initially on board with Rec being hypnotized to "fall in love" with Amazoness... but he helps him break out of it because he prefers to win Nino with his own power, and not playing dirty tricks like this one.

* TheFaceless: We never see how is Hoshi under his mask, we only know from [[AllThereInTheManual sketches]] and short appeareances of his real self, that he often wears sunglasses (due to his former [[{{Pun}} stardom]]'s status) and that he has short red hair.
* FunTShirt: Hoshi has some questionable fashion's tastes and he even does his own t-shirts, one noticeable being "ORE NO T-SHIRT" ("I'm a T-Shirt").

* MomentKiller: Voluntarily (in front of Rec and Nino when they are dating) and sometimes even involuntarily.
* NotSoDifferent: Hoshi has more in common with Rec than he would expect.

* AFatherToHisMen: He used to be in the military, and it is implied he was seen as such in his own squad (and that is also recurrent with the rest of Arakawa's community).

* HugeGuyTinyGirl: He is the tallest man of the Arakawa's community, so he is seen as a Huge Guy to every woman of the village, with noticeable exception to Amazoness.
* LivingLieDetector: He was in the military, so he can easily react towards anyone who may be lying in front of him.
* LoveAtFirstPunch: He met Maria in the middle of a battlefield when she used one of her attacks to leave him bald. He fell for her ''immediately''.

* MadBomber: Has an obsession of throwing grenades everywhere.

* OneManArmy: He is huge, he has a military's past, and is well trained in the arts of camouflage and weaponry.

* PerpetualFrowner: He rarely is seen with a smile on his face, due to his military's training.
* PersonOfMassDestruction: Sister is, perhaps, the most dangerous person in the Arakawa's village.
* PhenotypeStereotype: It's unclear from where exactly is Sister, although Stella's past (as he directed her orphanage) suggests he may be English or European as well.
* ScarsAreForever: Due to his HighPressureBlood coming out from a scar that is across his face, it's evident that it frequently opens, and it will never heal.
* TheStoic: He is a PerpetualFrowner who rarely express emotions... [[NotSoStoic unless his]] [[{{Jerkass}} crush's insults get to him]].
* TriggerHappy: Sister has been described as a "paranoid former soldier" by some of the villagers, so no one has to wonder why he points them out with guns in some "life-or-death" situations.
* WholesomeCrossdresser: Sister uses a nun's habit (though his military suit is below it) almost all the time, but there are ocassions (either in {{Imagine Spot}}s or acting scenes) he will use other feminine clothes such as a schoolgirl outfit, complete with a [[HairDecorations barette]].

* AgeLift: In the drama, Stella is portrayed as a teenager (a bit older than the Iron Brothers) instead of a child.

* LimitedWardrobe: She is mostly seen wearing a cutesy feminine dress, with some obvious exceptions (she also uses pajamas). Her drama counterpart is seen wearing a mixed variety of clothes, one layer over the other.
* PrecociousCrush: She is implied to have a crush on Sister, because he took care of her when she was younger, although it seems that she [[spoiler:changes her opinion once the series is ending]].

* BerserkButton: It's implied that she and Sister were former lovers, since every time Sister slips his tongue into his military's memories, she would attack him with a pair of scissors, ''from across the riverbank''.

%%* DarkActionGirl

* CoolBigSis: She acts as such, bordering even at OneeSama territory, although exclusively for the girls and children. The male part of the riverbank's village usually receives a solid portion of bitchiness hidden behind a beautiful smile.

* IShallTauntYou: Her addiction is insulting every man of the village, until their spirit to continue living, dies as well.
* NotAMorningPerson: She becomes a "monster" if she wakes up earlier.

* RoseHairedSweetie: The BitchInSheepsClothing variant -- she's only sweet at first glance. She's actually a sadist who loves to bully others. She can be nice to the girls, though.
* ShearMenace: Maria threats others with her scissors.

* TheVamp: Maria comes from the "treat men like shit and they'll be fawning over you" variety. It works perfectly with Sister, after all.

* CainAndAbel: Subverted, since Tetsuo and Tetsuro don't hate each other enough to sacrifice one over the other (although it's implied this ''could'' happen since they are growing up, and one of them falls in love with Stella).

* {{Expressive Mask}}s: They do not take their masks out, so instead, these always express their emotions. This is, however, subverted in the drama, since they look more as tin-luchador masks.
* TheFaceless: In a similar case as Hoshi's and the Mayor's, their real faces are never revealed to the readers and the viewers. The few glances of them only happen in the finale.
* HulkingOut: Given the circumstances of training with Sister, they suffer a similar transformation as Stella. Although, they only spend transformed for a while.
* MrImagination: Rec considers that the Iron Brothers are actually "chuunibyou" if they aren't what they claim to be.
* PowerLimiter: Their masks can control their psychic powers, gravity and also shut down the Government's GPS. Or so they claim.
* PsychicPowers: They claim that they have such, but they are never shown in the whole series. Of course, who would tempt them to use them if they are paranoid of the government and according to them, their powers are too ''powerful''?
* PuppyLove: One of the twins is in love with Stella.

* WonderTwinPowers: They imply that if they aren't together, their psychic powers may not work. This is the reason of why they fear if one of them gets caught first.

* DisappearedDad: Hasn't seen his wife or daughter for six years, though they don't seem to mind and they fully encourage his dreams of becoming a champion liner.
* NiceGuy: He is one of the nicest guys you will ever find in the series.
* ObliviousToLove: He doesn't recognize that Shimazaki loves him with a passion.
* {{Salaryman}}: What his former job was, later, he instead wants to become the most recognizable "white lining walker" in the entire world.
* SuperOCD: He believes that, if he walks out off his white line, his wife and child would become ''chicken''. And since no one can prove him otherwise, the rest of the community don't want to risk it.
* SmarterThanYouLook: Despite his looks, or the fact that he was a failure as a salaryman, he is actually one of the smartest members of the community. He even gets in charge of a "Change your job" fair inside the Arakawa's community.

* AmbiguouslyHuman: Or so she claims, as she hints that there is a ''slight'' probability that she is [[{{Cloudcuckoolander}} actually part vegetable]].
* BananaPeel: Taken UpToEleven with SlipperySkid in her first appearance.

* CurtainsMatchTheWindow: Her eyes are red as her hair.
* CuteClumsyGirl: She is ''very'' clumsy, compared to the rest of the girls of the Arakawa's community.

* FieryRedhead: She gets too passionate with her vegetable farming.

* HopelessSuitor: She doesn't mind if the Mayor rejects her or ignores that she has feelings for him, she would always pursue his love. [[spoiler: It's implied to be averted by the end of the manga, as she is seen living with him.]]

* OlderThanTheyLook: She is 22 years old according to [[AllThereInTheManual the official info]] but looks somewhat younger.

* ArrangedMarriage: To Nino, and only because he got (accidentally, thanks to the influence of the Venusian Ghost) "approved" by her parents. He later calls out the wedding ceremony, because he can't ''betray'' Rec and his own principles.
* BrainwashedAndCrazy: He got stuck with Rec in their trip to Venus, although he is shortly eaten by a rabbit-like monster (and this bring several sequels to Rec once he came back to Earth) when they land. He was saved by a Venusian Ghost who brainwashed him afterwards with the only condition of getting Nino back to Venus. He eventually gets better once Rec stops him.
* EveryoneCanSeeIt: Everyone knows he's in love with Rec... whether they want to or not.
* IncompatibleOrientation: With Rec, who is straight.
* ManHug: He goes after them often with Rec.
* PapaWolf: He is ''very'' protective of Rec, ever since he considered himself as his dad's replacement.
* StraightGay: He only acts feminine when he is preparing food or other home made stuff for Rec. It's up to interpretation if he does so because he sees him as his son, or because he wants Rec to see him as a ''potential'' lover.
* SubordinateExcuse: Despite his weird attraction to Rec, he sometimes ''is'' useful.
* YouDontLookLikeYou: Upon his return after his "supposed" death in Venus, his appearance gets drastically different than his usual self -- he looked manly and less StraightGay and affectionate to Rec.

* BeautyMark: She has a mole under her left eye.
* {{Brainwashed}}: She gets known as the "Queen of the Brainwashed" in-series, because she became brainwashed very frequently.
** The first time is when she just suffered a HeroicBSOD, after finding out that Shiro actually has a family and that he hasn't got divorced from his wife. To make matters worse, she is contacted by a Mole who was willing to know and reveal the secrets of the Arakawa's riverbed. Then, she becomes TheMole for him.
** The second time is when she gets convinced by a fortune teller. However, she becomes rather useful when Rec was looking for Nino in the last arc of the manga.
* EnigmaticMinion: Under the Arakawa's community, she becomes TheMole for Rec's dad, since she is more loyal to him than Rec himself. The Mayor then threatens her to finish the research about the riverbank and Nino. She gets later convinced by the same Nino to stay there with the rest of the community.
* TheMole: This is her basic role to obtain information about the Arakawa's riverbed and Nino. Once under Rec's father, and another under the Mole's guidance.
* SingleWomanSeeksGoodMan: After going to the bridge for the first time, she falls in love with ''Shiro'', after he helps her to get out of Sister and Maria's trap. Admittedly, there ''was'' a bit of ComicallyMissingThePoint involved, too.

Rec's father and CEO of one of the most powerful companies in the city, if not Japan. He firmly believes in never being indebted to anyone and has instilled that in Rec, for his entire life. A cutthroat businessman, he gets what he wants when he wants it and proudly stands tall over his accomplishments.

* FourEyesZeroSoul: Subverted. He's very harsh and curt with Rec, but he does have some love for his son.
* HumiliationConga: In a situation that briefly parallels to his own son's first encounter in the Arakawa's bridge, he leaves the place all classy and looking so cool he annoys the policeman.
* PapaWolf: Despite what he claims, he protects his son from the sidelines.
* ScaryShinyGlasses: Due to his strict personality and rare presence in Rec's life, there are times that he gets uncounsciously scared by his glasses-wearing image...

* EverythingsBetterWithSamurai: He is considered as the "last" one of them, as lampshaded in his nickname. He is also a fan of Ryouma Sakamoto (he also writes a blog under this identity).

* ImportantHaircut: He used to be a normal hairdresser, until he got sick of his lifestyle and ran away from home. He cut of his hair as a meaning of "new beginning" once his "samurai spirit" was awakened in the Arakawa's riverbank.
* {{Keigo}}: His formal speech reflects his old-fashioned sense as a "samurai".

* EvenTheGuysWantHim: Or, at least, they cannot help swooning over his manliness in Rec and Hoshi's cases.
* AFatherToHisMen: How the birds' yakuza sees him (he is their "big brother"), since he is always in the peak of sacrificing himself for their sake... or the sake of the riverbank's villagers.
* InterspeciesRomance: Due to their eccentric natures, both him and Jacqueline consider their relationship as this.
* RatedMForManly: He is the ''manliest'' of all men in not only Arakawa's riverbank, but ''also'' in Japan.

* {{Tsundere}}: He is a tsuntsun towards Jacqueline, as he may look aloof from her. But his dere shows off when he ''really'' means she is the world to him.

* DragonLady: Prior to coming to Arakawa, she was a former yakuza queen.
* InterspeciesRomance: This is how she interpret her relationship with Billy, since she is a "queen bee" and he is a bird.
* SatelliteCharacter: To Billy, because they are an inseparable couple.
* SickeninglySweethearts: She is madly in love with Billy.
* SingleTargetSexuality: Jacqueline doesn't have any eyes for any other man than Billy.

* CaptainSpaceDefenderOfEarth: He believes that his real role in the world is that he should protect the world from evil venusians, and his way to warn people about it, is through his sci-fi manga's pages. He ''believes'' Nino is an alien-princess that would destroy the world.

* TheMole: His own desire to defend the Earth is what the Mole's organization wanted to use in their own benefit. Although, he still has some affection to the Arakawa's community. He is self-aware that the Mole is full of "bad" people, but his only motivation to keep doing so was because he just wanted to keep playing as [[TheHero a hero]], no matter what side he takes.

* AmazonianBeauty: Has the body of an Amazon, but the heart of a high school girl.
* HopelessSuitor: She thinks she is this to Hoshi at first, as he still holds his feelings for Nino.
* NoGuyWantsAnAmazon: This is what she believes, because she is too forceful onto the guys she likes. Her "brothers" seem to think otherwise, though.

* {{Stripperiffic}}: Her outfit goes along with the Amazon warrior theme, but it leaves very little to the imagination.
* TinyGuyHugeGirl: To both Rec and Hoshi, as she is taller (and stronger) than them.
* {{Tsundere}}: {{Lampshade|Hanging}}d by Rec and it's as creepy as it sounds, because she can be a violent tsuntsun.

* ValleyGirl: What her Saitama dialect is often translated as.

* AscendedExtra: Who would have expected that the famous idol outside the Arakawa's riverbank would play an important role later into the series? Better yet, making a personal proposal to Rec to join the riverbank's community after he found out he was as ''weird'' as the rest of the villagers?
* EvenTheGuysWantHim: Rec, Hoshi and Last Samurai swoon over him a LOT. They tend to "invoke" their Kameari-tis when they have to think as "teenage girls". No wonder he gets particularly scared of ''this'' when he finally meets Hoshi and Last Samurai in the riverbank.
* MaybeEverAfter: [[spoiler:At the end of the manga, it's implied that he and the Venusian Ghost got together.]]
* WalkingSpoiler: Especially for those that only stayed out with the anime, due to his AscendedExtra appearance late into the manga series and his role as a major player in the last arc.
* WillingChanneler: Kameari accepts being the human host of the Venusian Ghost as part of a deal regarding his nudity's obsession. [[spoiler:It's this possession where he realizes he has a mutual connection with him as his possible ''other half''.]]

* ObliviousToLove: Seemingly everyone knows that P-ko loves him but ''him''. [[spoiler: At the end, it's implied that they end up together, or at least, live with each other]].
* PapaWolf: He is very protective to Nin and her well-being, as she was left behind by her biological parents as part of some deal with him.

* EverythingsBetterWithSamurai: He is considered as the "last" one of them, obviously. He is also a fan of Ryouma Sakamoto (and he also writes a blog under this identity.

* HopelessSuitor: She thinks she is this to Hoshi, as he still holds his feelings for Nino, who is the physical opposite of her.

A list of characters from the anime and manga series ''Manga/ArakawaUnderTheBridge'', a series about an eccentric group of homeless people that have formed a community under a bridge on the Arakawa River. '''Beware of untagged spoilers!'''

A list of characters from the anime and manga series ''Manga/ArakawaUnderTheBridge'', a series about an eccentric group of homeless people that have formed a community under a bridge on the Arakawa River.

* OfficialCouple: With Nino. [[spoiler: They are literally their respective "other halves"]].

Rec's love interest and the reason he lives under the bridge. A {{Cloudcuckoolander}} who believes she's a Venusian [[spoiler:(she is actually from Venus, as it is revealed later in the story)]]. She has a strange obsession with fishing some of the creatures that live in the riverbed and provides them for the community.

* {{Cloudcuckoolander}}: She could be this if you don't buy her Venusian story... [[spoiler: [[ArkhamsRazor which is actually true]].]]

* ForceFeeding: Her idea of hospitality around friends and her boyfriend, which is [[spoiler: a Venusian trait]], is force feeding them the fishes she caught for dinner.

* HeroicBSOD: After she finds out that Hoshi [[spoiler:used her cosmic tapes to record a new song (and all the blame is turned against Rec)]], she gets mad enough that she climbs a telephone pole.

* HumanAliens: She is originally presented as an [[AmbiguouslyHuman ambiguous human]] who claims to be from Venus, but actually [[spoiler: her claims are true, as she was left behind by her Venusian parents, under the care of the Mayor.]]

* InnocentFanserviceGirl: She used to take baths normally outdoors, but after a visit from the cops she began to use a ModestyTowel. [[spoiler: It's later revealed that, since she is actually a Venusian, she doesn't find it "weird" to be naked, but more "natural", although she feels it as a distant memory of her race.]]

* MysteriousPast: Her past and her "I'm a Venusian" claims are deliberately left out of focus earlier into the series. It's later revealed that [[spoiler: she is really an alien, that she was left behind as some part of deal with the Mayor, and that Venusians are always fated to be with their "other halves" (they are always born in a pair of twins, and [[{{Twincest}} devote their love to each other]], but since her twin died in Earth, she was left behind).]]

* OfficialCouple: With Rec. [[spoiler: They become their respective literal "other halves" at the end of the series.]]

* ParentalAbandonment: [[spoiler: Her parents left her behind after her twin brother, her original "other half", died on Earth.]]

* BunnyEarsLawyer: Although he is the ''crazy'' leader of the community, most of his actions [[spoiler:(especially outside the Arakawa's riverbank)]] are very competent in his own benefit. [[spoiler:It's unclear if the villagers are just playing along with him or not at the end of the series.]]
* ChekhovsGunman: [[spoiler: Who could have guessed that a man who believes he is a {{kappa}}, is actually one of the main moving figures behind the whole plot of the series? And only for the sake of Nino and the secrets that lay under the Arakawa's riverbed...]]

* TheFaceless: We never see his real face. Not even when he is doing an illusion-magic performance or [[spoiler:when he is out of the kappa suit]].

* ObfuscatingStupidity: The Mayor has had moments of deep insight at times, belying the aloof nature he normally sports. [[spoiler: This is also considering his "man behind the curtains" position, once he leaves the kappa suit aside]].

* PapaWolf: To Nino. [[spoiler: Especially considering the kind of deal he had with Nino's parents, that end up with him taking care of her.]]

* TheSociopath: ComedicSociopathy at most, but in the episode 7 of season 2 [[spoiler:she actually goes ''insane'' while locked for several days with the people she feels she shouldn't be bullying (ie. girls)]].

* ObliviousToLove: He doesn't recognize that [[spoiler:Shimazaki]] loves him with a passion.

* SmarterThanYouLook: Despite his looks, or the fact that he was a failure as a salaryman, he is actually one of the smartest members of the community. [[spoiler: He even is in charge of a "Change your job" fair inside the Arakawa's community.]]

* AmbiguouslyHuman: Or so she claims. [[spoiler: She hints that there is a ''slight'' probability that she is [[{{Cloudcuckoolander}} actually part vegetable]]]].

* HopelessSuitor: She doesn't mind if the Mayor rejects her or ignores that she has feelings for him, she would always pursue his love. [[spoiler: It's implied to be averted by the end of the manga, as she is seen living with him...]]

* ArrangedMarriage: [[spoiler: To Nino, and only because he got (accidentally, thanks to the influence of the Venusian Ghost) "approved" by her parents. He later calls out the wedding ceremony, because he can't ''betray'' Rec and his own principles]].
* BrainwashedAndCrazy: [[spoiler: He got stuck with Rec in their trip to Venus, although he is shortly eaten by a rabbit-like monster (and this bring several sequels to Rec once he came back to Earth) when they land. He was saved by a Venusian Ghost who brainwashed him afterwards with the only condition of getting Nino back to Venus. He eventually gets better once Rec stops him.]]

* YouDontLookLikeYou: [[spoiler:Upon his return after his "supposed" death in Venus, his appearance gets drastically different than his usual self -- he looked manly and less StraightGay and affectionate to Rec.]]

** The first time is when she just suffered a HeroicBSOD, [[spoiler:after finding out that Shiro actually has a family and that he hasn't got divorced from his wife. To make matters worse, she is contacted by a Mole who was willing to know and reveal the secrets of the Arakawa's riverbed. Then, she becomes TheMole for him.]]
** The second time is when she gets [[spoiler: convinced by a fortune teller. However, she becomes rather useful when Rec was looking for Nino in the last arc of the manga]].

* TheMole: [[spoiler: This is her basic role to obtain information about the Arakawa's riverbed and Nino. Once under Rec's father, and another under the Mole's guidance.]]

* StalkerWithACrush: Once she gets brokenhearted [[spoiler:after finding out about Shiro's family... she becomes obsessed with him so much, that she even kidnaps him]].

* DisappearedDad: He had a rare presence in Rec's childhood (he would rarely eat with him in the table and such), while the "dad" role went to Takai, one of his assistants. It's suggested that he feels [[spoiler:[[TheResenter resenful]] over his wife's death, so he maintains a distance from his son]].

* EverythingsBetterWithSamurai: He is considered as the "last" one of them, obviously. He is also a fan of Ryouma Sakamoto [[spoiler: he also writes a blog under this identity]].

* {{Brainwashed}}: [[spoiler: He gets involved in some conspiracy's organization that promises him to reveal some of Nino and the Arakawa's riverbed's secrets.]]

* TheMole: [[spoiler: His own desire to defend the Earth is what the Mole's organization wanted to use in their own benefit. Although, he still has some affection to the Arakawa's community. He is self-aware that the Mole is full of "bad" people, but his only motivation to keep doing so was because he just wanted to keep playing as [[TheHero a hero]], no matter what side he takes.]]

* HopelessSuitor: She thinks she is this to [[spoiler:Hoshi]].

* TinyGuyHugeGirl: To Rec. [[spoiler:And Hoshi.]]

* AscendedExtra: Who would have expected that the famous idol outside the Arakawa's riverbank would play an important role later into the series? [[spoiler:Better yet, making a personal proposal to Rec to join the riverbank's community after he found out he was as ''weird'' as the rest of the villagers?]]

* WillingChanneler: [[spoiler: Kameari accepts being the human host of the Venusian Ghost as part of a deal regarding his nudity's obsession. It's this possession where he realizes he has a mutual connection with him as his possible ''other half''.]]

* ExpressiveHair: Her hair can act as an antenna for some weird reason.

* HairOfGoldHeartOfGold: She is a blonde, and her heart is too pure, considering that she is an stranger to normal earthling topics as "relationships". She can also sense from a far when a person is evil or not.

* SugarAndIcePersonality: Nino is noted to be distant with whatever happens around her, unless she enjoys herself. It's even noted by the Mayor that she has ''changed'' once it seems that she fell in love with Rec, as well.

* DeliberatelyCuteChild: She is firstly presented as an innocent child (even Rec falls for it)... but she is actually a CuteBruiser.

* CoolBigSis: She acts as such exclusively to the ''girls''.

%%* TheVamp

* {{Adorkable}}: Even when P-ko messes up something, she comes as a very adorable young woman who tries her best.

* ExpressiveHair: Her [[AnimeHair unusual pepper-like hairstyle]] often express her emotions.

* HairOfGoldHeartOfGold: She is a blonde, and her heart is too pure, considering that she is an stranger to normal earthling topics as "relationships", or what exactly is evil in the world. She can also sense when a person is evil or not.

* {{Adorkable}}: She is an adorable young woman who tends to mess up any of her own achievements.

* BrainwashedAndCrazy: [[spoiler: He got stuck with Rec in their trip to Venus, although he is shortly eaten by a rabbit-like monster (and this bring several sequels to Rec once he came back to Earth) when they land. He was saved by a Venusian ghost who brainwashed him afterwards with the only condition of getting Nino back to Venus. He eventually gets better once Rec stops him.]]

* {{Brainwashed}}: She becomes known as the "Queen of the Brainwashed" in-series, because she becomes easily brainwashed very frequently.

* EnigmaticMinion: Under the Arakawa's community, she becomes TheMole for Rec's dad, since she is more loyal to him than Rec himself. The Mayor then threatens her to not keeping with the research about the riverbank or Nino. She is later convinced by the same Nino to keep living there with the rest of the community.
* TheMole: [[spoiler: Her basic role to obtain information about the Arakawa's riverbed and Nino. Once under Rec's father, and another under the Mole's guidance.]]
* SingleWomanSeeksGoodMan: After going to the bridge for the first time, she falls at first sight for [[spoiler:''Shiro'']] after he helps her to get out of Sister and Maria's trap. Admittedly there ''was'' a bit of ComicallyMissingThePoint involved, too.

%%* SatelliteCharacter: To Jacqueline.

* SingleTargetSexuality: He has no eyes for other woman, except for Jacqueline.

* BerserkButton: He doesn't like when Hoshi refers to him as "Leech", especially once it started to catch out in the riverbank. The first time, [[RantInducingSlight he didn't take it well]].
%%* BishieSparkle: In Episodes 8 and 10 of Season 2.

* {{Bookworm}}: He started reading technical books when he was just a ''baby''. He is by far one of the most smartest members of the Arakawa's community.
* BrainwashedAndCrazy: In Episode 8 of Season 2, he was {{charm|Person}}ed by Amazoness's tengu henchmen to [[DevotedToYou fall for her]].
* ButtMonkey: Since he is the FishOutOfWater from the Arakawa's community, he is the only one who doesn't get their idiosyncrasies, and he is often made fun by them, because his normal-world's logic doesn't work for ''them''.

* DebtDetester: His family's mantra and principle is "Never put yourself in debt to anyone", so he always pays all debts as quickly as possible, except when he finds himself in a quandry when a venusian who lives under a bridge saves his life.
* EmbarrassingNickname: Who would like to be known as "Recruit" (especially considering his job's position in his family's company)?

* IOweYouMyLife: He believes that this is what will happen if he becomes indebted to someone. Except, that is exactly what it happens when Nino saves him the first time they meet, becoming lovers as a result.

* KansaiRegionalAccent: Pops up when he becomes ''very'' angry.
* LimitedWardrobe: He is always seen using a pair of suit's pants, a shirt and his red tie.
* LoonyFriendsImproveYourPersonality: Little by little, the more he stays on the Arakawa's riverbank, the better his own personality surfaces.

* NonIdleRich: The Ichinomiyas are practically rich, and he has a high position in their own company, however, and since the Mayor doesn't want any of his money (and Rec doesn't want to be seen as a "leech"), the best he could do is getting a job as a teacher for the younger members of the riverbank's community.
* NotSoDifferent: He sees Hoshi as a petty person, but when they team up, he is as petty as him.

* OnlySaneMan: And UpToEleven, considering the type of place that is the [[{{Cloudcuckooland}} Arakawa's riverbank village]]. Although, he can't really be seen as "sane" if you consider how far he would go to avoid debts.
* WellDoneSonGuy: This is how Rec sees his relationship with his father. Rec's motivation for keep doing as he tells him, is because he wants him to recognize his own merits, which he often doesn't. (''So much'' that Takai sees himself as his dad's replacement... even to creepy degrees).

Rec's love interest and the reason he lives under the bridge. A {{Cloudcuckoolander}} who believes she's a Venusian [[spoiler:(she is actually from Venus, as it is revealed later)]]. She has a strange obsession with fishing some of the creatures that live in the riverbed and provides them for the community.

* AmbiguouslyHuman: Nino is presented to the readers and the viewers as someone who could be very human in appearance, unless you consider her unfamiliarity with what a normal human would do (especially a human ''girl'') in a relationship, or the fact that she could ''breath'' under water.

* {{Cloudcuckoolander}}: That is unless you buy her Venusian story... [[spoiler: which she actually is.]]

* ForceFeeding: Her idea of hospitality around friends and her boyfriend, which is [[spoiler: a Venusian trait]].
* HairOfGoldHeartOfGold: She is a blonde, and her heart is too pure, considering that she is an stranger to normal topics as "relationships", or what is evil in the world. She can also sense when a person is evil or not.
* HeroicBSOD: After Hoshi [[spoiler:records her treasured "cosmic" tape with his song]], and after the responsibility is turned against Rec, obviously.
* HiddenBuxom: She is always seen wearing a tracker suit's jersey, so you can rarely see her big breasts.

* InnocentFanserviceGirl: She used to take baths normally outdoors, but after a visit from the cops she began to use a ModestyTowel. [[spoiler: It's later revealed that her Venusian's nature also makes her feel "natural" to be naked, as a distant memory of her race.]]
* ManicPixieDreamGirl: Nino fills this role for Ric, though her personality doesn't fit very well.
* MasculineGirlFeminineBoy: She is the Masculine Girl to Rec's Feminine Boy, to some extent, as she is unfamiliar with what a normal girl is likely to be in a relationship. That, and Rec is supposed to have a "heart of a maiden".
* MegatonPunch: Is quite capable of taking out her anger on someone.

* ParentalAbandonment: [[spoiler: Her parents left her behind after her twin brother, her original "other half" died.]]
* SelectiveObliviousness: She ignores everything Hoshi throws her way, but if [[SingleTargetSexuality Rec does something romantic]], she's touched. "If" she notices.
* SheCleansUpNicely: Just fit her any kind of feminine clothing, and she would look gorgeous under Rec (and Hoshi)'s eyes.
* SingleTargetSexuality: Towards Rec, because not only she saved him from drowning at their first meeting, or because she wanted to be his girlfriend, it's because [[spoiler: Rec is her "other half"]].

* TheStoic: She is always under a expresionless face, rarely showing a smile. [[NotSoStoic Unless]] she shares a moment with Rec.
%%* SugarAndIcePersonality

%%* BunnyEarsLawyer

* {{Cloudcuckoolander}}: The Mayor claims he is a real kappa... but his [[PeopleInRubberSuits rubber suit]] differs. And everyone buys the idea he is a mythical creature (even Rec, if only for a few minutes).

* ObfuscatingStupidity: The Mayor has had moments of deep insight at times, belying the aloof nature he normally sports. [[spoiler: This is also considering his "man behind the curtains" position, once he leaves the kappa suit out]].
* ObliviousToLove: Seemingly everyone knows that P-ko loves him but him. [[spoiler: At the end, it's implied that they end up together, or at least, live with each other]].

* PeopleInRubberSuits: He is not a real kappa, just a man who is always seen using a rubber suit. Then, HilarityEnsues when Rec is the only one who recognizes this.

* DoggedNiceGuy: Only to Nino. He has known her for a few couple of years, and it was "love at first sight", so he wanted to approach her little by little. But once Rec is mentioned as "Nino's boyfriend", he feels not only rejected, but attempts to be more spectacular to gain her attention (because he notices that there aren't advances in Rec and Nino's relationship).
* EvenEvilHasStandards: He can ruin Rec, even making him the end of the joke, just to get Nino's attention... and yes, he was initially on favor of Rec being hypnotized to "fall in love" with Amazoness... but, at the end, he helps him break out because he prefers to win Nino in his own power, and not with some unfair acts for both parties.
* ExpressiveMask: He wears ''two'' masks to cover his face. How it is even possible to make expressions on them is anyone's wonder...
* TheFaceless: We never see how is Hoshi under his mask, we only know from [[AllThereInTheManual sketches]] and short appeareances of his real self, that he often wears sunglasses (due to his former [[{{Pun}} stardom]]'s status) and that he has wavy short hair.

* MomentKiller: Voluntarily (in front of Rec and Nino) and sometimes involuntarily.
* NotSoDifferent: Has more in common with Rec than you'd expect.

* AFatherToHisMen: He used to be in the military, and it is implied he was seen as such in his own squad (and that is also recurrent with the Arakawa's community).

* LoveAtFirstPunch: He met Maria in the middle of a battlefield when she used one of her attacks to leave him bald. He fell for her immediately.

* NunTooHoly: He takes seriously his position as a nun, although he is a paranoid soldier who threats the Arakawa's community by the gun.

* PerpetualFrowner: He rarely is seen with a smile on his face.
* PersonOfMassDestruction: He is, perhaps, the most dangerous person in the Arakawa's village.
* PhenotypeStereotype: It's unclear from where exactly is Sister, although Stella's past (he directed her orphanage) suggests he may be English as well.

* EnfantTerrible: Don't fall for her cuteness, she was trained by Sister, from all people.

* LimitedWardrobe: She is mostly seen wearing a cutesy feminine dress, with some obvious exceptions (she also uses pajamas). Her drama counterpart is seen wearing a variety mix of clothes one over the other.

* {{Yandere}}: Towards Sister.

* BerserkButton: It's implied that she and Sister were former lovers, and every time Sister slips his tongue into his military's memories, she would attack him with a pair of scissors, ''from across the riverbank''.
%%* BitchInSheepsClothing

* NotAMorningPerson: She can become a "monster" when she is woke up earlier.

->'''Played by''': As Tetsuo, Creator/YukoSanpei (voice, anime), and Takuto Sueoka (drama). As Tetsuro, Creator/RyokoShintani (voice, anime), and Raito Mashiko (drama)

%%* CainAndAbel: Subverted in Episode 10 of Season 2.

* TheFaceless: Their faces, in a similar case as the Mayor's and Hoshi's, are obscured when they describe their past. This is also played in the cover of the 13th volume of the manga.
* HulkingOut: Given the circumstances of training with Sister... just like Stella. They only spend transformed for a while.

* PowerLimiter: Their masks control their psychic powers, gravity and also shut down the Government's GPS. Or so they claim.
* PsychicPowers: They claim that they have such, but they are never shown in the whole series. Of course, who would tempt them to use them if they are paranoid of the government and according to them, their powers are too ''powerful''.

%%* WonderTwinPowers

* ObliviousToLove: He doesn't recognize that [[spoiler:Shimazaki]] loves him with fervor.

* SuperOCD: He believes that, if he walks out off his white line, his wife and children would become ''chicken''. And since no one can prove him otherwise, the rest of the community don't want to risk it.

%%* {{Adorkable}}
* AmbiguouslyHuman: Or so she claims. [[spoiler: She hints that there is a slight probability that she is [[{{Cloudcuckoolander}} actually part vegetable]]]].

* CuteClumsyGirl: She is way too clumsy, compared to the rest of the girls of the Arakawa's community.

* ExpressiveHair: Her [[AnimeHair unusual pepper-like hairstyle]] often express the end of her emotions.

* HopelessSuitor: She doesn't mind if the mayor rejects her or ignores that she has feelings for him, she would always pursue his love. [[spoiler: Implied to be averted by the end of the manga.]]

* BrainwashedAndCrazy: [[spoiler: He got stuck with Rec in their trip to Venus, it's just that he was eaten by a rabbit-like monster (and this brought sequels to Rec once he came back to Earth). He was saved by a Venusian ghost who brainwashed him afterwards with the only condition of getting Nino back to Venus. He eventually gets better once Rec stops him.]]

* {{Megane}}: He is always seen using glasses.

* {{Brainwashed}}: She is rather known as the "Queen of the Brainwashed", because she gets brainwashed so easily.

** The second time is when she gets [[spoiler: easily convinced by a fortune teller. However, she gets really useful when Rec was looking for Nino in the last arc of the manga]].
* EnigmaticMinion: Under the Arakawa's community, she becomes [[spoiler:TheMole for Rec's dad, since she is more loyal to him than Rec himself. The Mayor then threatens her to not keeping with the research about the riverbank or Nino. She is later convinced by the same Nino to keep living there with the rest of the community.]]

** [[spoiler: After she gets brokenhearted after finding out about Shiro's family... she starts acting as a StalkerWithACrush]].

* DisappearedDad: He had a rare presence in Rec's life (he would rarely eat with him in the table and such), while the "dad" role went to Takai, one of his assistants. It's suggested that perhaps he feels [[spoiler:[[TheResenter resenful]] over his wife's death, so he maintains a distance from his son]].

* HumiliationConga: In a situation that briefly parallels to his own son's first encounter in the Arakawa's bridge, he leaves all classy and looking so cool he annoys the policeman.
* {{Megane}}: He uses glasses.
* PapaWolf: Despite what he claims, he is protective to his own son.
* ScaryShinyGlasses: Due to his strict personality, there are times that Rec gets uncounsciously scared by his image.

Once a master hairdresser and attractive man, he got sick and tired of his lifestyle and ran away with little more than a katana from his family's house. After an accidental meeting with the Mayor under the bridge, his "samurai spirit" was awakened, and now he speaks in an older Japanese dialect and wears a topknot as he lives with the community by the Arakawa river. He still uses that same katana to cut the hair of the Arakawa people.

* HopelessSuitor: He has a crush on P-ko, and he later learns that she would never stop loving the Mayor. He sometimes [[{{SelfDeprecation}} self-deprecates himself]] knowing that she would never change her opinion on him.

* AFatherToHisMen: How the birds' yakuza-like-gang sees him (he is their "aniki"), since he is always in the peak of sacrificing himself for their sake... or the sake of the riverbank's villagers.
* InterspeciesRomance: Both him and his lover seem to be insane enough to consider their relationship as this.

* SickeninglySweethearts: He is somewhat {{tsundere}} towards Jacqueline, but he is madly in love with her. That was the reason alone why he betrayed his own mob group.

* {{Yakuza}}: [[spoiler: His claims are actually true, as he is acknowledgeable about the mob's underworld. His comrades have suffered through several incidents. And he even sacrificed himself over his love to Jacqueline, who was also some yakuza's queen.]]

* DamselInDistress: She seems quite helpless, which allows Billy to always come to the rescue.

* InterspeciesRomance: What it looks like her relationship with Billy really is.
* SatelliteCharacter: To Billy.

* CaptainSpaceDefenderOfEarth: He believes that his real role in the world is that he should protect the world from evil venusians, and his way to warn the world about it is through his sci-fi manga's pages. He ''believes'' Nino is an alien-princess that would destroy the world.

* {{Tsundere}}: {{Lampshade|Hanging}}d by Rec and it's as creepy as it sounds.
* UncannyValleyMakeup: Her make up looks straight from a "horror" movie.

* TheFaceless: They hide their faces under tengu masks, and there are rare sights of their faces in some manga panels, when they talk serious about Amazoness.

* {{The Faceless}}es: Their faces, in a similar case as the Mayor's and Hoshi's, are obscured when they describe their past. This is also played in the cover of the 13th volume of the manga.
* HulkingOut: Given the circumstances of training with Sister... just like Stella, they spend a while transformed as such.

* EverythingsBetterWithSamurai: He is considered as the "last" one of them, obviously. He is also a fan of Ryouma Sakamoto [spoiler: he also writes a blog under this identiry]].

Rec's love interest and the reason he lives under the bridge. A {{Cloudcuckoolander}} who believes she's a Venusian [[spoiler:(she is actually from Venus, as it is revealed later]]. She has a strange obsession with fishing some of the creatures that live in the riverbed and provides them for the community.

* MysteriousPast: Her past and her "I'm a Venusian" claims are deliberately left out of focus earlier into the series. It's later revealed that [[spoiler: she is really an alien, that she was left behind as some part of deal with the Mayor, and that Venusians are always fated to be with their "other halves" (they are always born in a pair of twins, and devote their love to each other, but since her twin died in Earth, she was left behind).]]

* OfficialCouple: With Rec. [[spoiler: They become their respective literal "other halves".]]
* OnlyKnownByTheirNickname: Her name comes from the tag "Class 2-3" (Ni-no-san) on the tracker suit's jersey that she always wears.

* PeopleInRubberSuits: He is not a real kappa, just a man who always is seen using a rubber suit.

* ScarsAreForever: Due to his HighPressureBlood coming out from a scar that is across his face, it's evident that it frenquently opens.

* MysteriousPast: It's deliberately left OutOfFocus earlier in the series, especially concerning her "I'm a Venusian" claims. It's later revealed that [[spoiler: she was left behind as some part of deal with the Mayor, after her twin died.]]

* TheStoic: She is always under a expresionless face, rarely showing a smile.

* {{Deliberately Cute Child}}ren:

* MrImagination: Rec considers that the Iron Brothers are actually "chuunibyou", if they aren't what they claim to be.
* PowerLimiter: Their masks control their psychic powers, gravity and that they shut down the Government's GPS. Or so they claim.
* PsychicPowers: They claim that they have such, but it's never shown in the whole series.

* ThemeTwinNaming: They are the '''Tetsu'''jin Brothers.

->'''Played by''':[[Creator/YuichiNagashima Cho]] (voice, anime), and Kazuyuki Asano (drama)

* StraightGay: He only acts feminine when he is preparing food for Rec. It's up to interpretation if he does so because he sees him as his son, or because he wants Rec to see him as a ''potential'' lover.

* DisappearedDad: He had a rare presence in Rec's life (he would rarely eat with him in the table and such), while the "dad" role went to Takai himself, one of his assistants. It's suggested that perhaps he feels [[spoiler:[[TheResentful resenful]] over his wife's death]].

Once a master hairstylist and attractive man, he got sick and tired of his lifestyle and ran away with little more than a katana from his family's house. After an accidental meeting with the Mayor under the bridge, his "samurai spirit" was awakened, and now he speaks in an older Japanese dialect and wears a topknot as he lives with the community by the Arakawa river. He still uses that same katana to cut the hair of the Arakawa people.

* EverythingsBetterWithSamurai: He is considered as the "last" one of them, obviously.

A mysterious Amazon woman who lives down the river, outside the riverbank's community. Her personality constantly shifts from that of an intimidating warrior to a high school girl. She's rarely seen without her cell phone and has a love of all things made in Saitama. She works for an unknown person and is often surrounded by a trio of "tengu" (guys with tengu masks and bikini tops worn over their t-shirts).