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.


!Recruit (Kou Ichinomiya)

!!!!!!Voiced by: Creator/HiroshiKamiya
The main character. He is a straight-laced young man who is good at everything he tries, but also follows his family's mantra, ''“Never put yourself in debt to anyone”'' to the letter. Unfortunately, this is what lands him in the strange community of Arakawa. He's a teacher in the river village.
* TheAce
* BerserkButton: When Hoshi's song came out, Kou had his name quickly switched to “Leech”. [[RantInducingSlight He didn't take it well.]] They changed it back.
* BishieSparkle: In Episodes 8 and 10 of Season 2.
* {{Bishonen}}: Takes it UpToEleven after completing Jacqueline's weight loss program.
* {{Bookworm}}
* BrainwashedAndCrazy: In Episode 8 of Season 2, he was {{charm|Person}}ed by Amazoness's tengu henchmen to [[DevotedToYou fall for her]].
* ButtMonkey
* TheComicallySerious
* CurtainsMatchTheWindow
* DebtDetester
* EmbarrassingNickname
* FauxlosophicNarration: At the beginning of each episode.
* FishOutOfWater
* HeroicBSOD: Got quite a nice one that revoked him into his childhood when [[spoiler:Shimazaki returned to the riverbed with another mission, that was also involucrating a trade of him for Nino's information]], much to the others (but Takai)'s dismay.
* IOweYouMyLife: What happens if he ever becomes indebted to someone, though he will try to rectify that as quickly as possible.
* IconicItem: His tie with his family's mantra embroidered on it.
* KansaiRegionalAccent: Pops up when he's really angry.
* LimitedWardrobe
* LoonyFriendsImproveYourPersonality
* MasculineGirlFeminineBoy: Feminine Boy to Nino's Masculine Girl, to some extent.
* NeatFreak
* NoGuyWantsAnAmazon: Literally, his reaction to Amazoness wanting to date him.
* NonIdleRich
* NotSoDifferent: As the time goes, he starts teaming up with Hoshi sometimes and being just as petty.
* OfficialCouple: With Nino.
* OneHeadTaller: To Nino.
* OnlySaneMan: [[UpToEleven Up To Eleven]]
* TeacherStudentRomance: [[ItMakesSenseInContext He teaches Nino.]]
** Also has a [[Manga/MinamiKe 'Sensei and Ninomiya-kun']]-like episode with Amazoness. [[{{Squick}} Yes, it's gross]].
* WellDoneSonGuy


!!!!!!Voiced by: Creator/MaayaSakamoto
Recruit's love interest and the reason he lives under the bridge. A {{Cloudcuckoolander}} who believes she's from Venus [[spoiler:or as implied later, she indeed is from there]]. She has a strange obsession with fishing some of the creatures that live in the riverbed and provides them for the community.
* AmbiguouslyHuman
* AttentionDeficitOohShiny
* BerserkButton: Listening to her tapes without permission makes her mad enough to climb a telephone pole.
** Trying to take Ric from her gets some [[NotSoStoic interesting responses]], too.
* {{Cloudcuckoolander}}
* ExpressiveHair
* ForceFeeding
* HairOfGoldHeartOfGold
* HeroicBSOD: After Hoshi [[spoiler:covers that "cosmic" tape with his song]]. With responsibility going to Ric, obviously.
* HiddenBuxom
* HumanAliens: If you buy that Venusian story, [[spoiler: that appears to be true as the plot continues to happen]].
* InnocentBlueEyes
* InnocentFanserviceGirl: She used to take baths normally outdoors, but after a visit from the cops she began to use a ModestyTowel.
* ManicPixieDreamGirl: Nino fills this role for Ric, though her personality doesn't fit very well.
* MasculineGirlFeminineBoy: Masculine Girl to Kou's Feminine Boy, to some extent.
* MegatonPunch: Is quite capable of taking out her anger on someone.
* MysteriousPast
* NoSenseOfPersonalSpace
* OfficialCouple: With Ric.
* OnlyKnownByTheirNickname: Her name comes from the tag "Class 2-3" (Ni-no-san) on the sweatsuit that she always wears.
* ParentalAbandonment
* SelectiveObliviousness: While she ignores everything Hoshi throws her way, but if [[SingleTargetSexuality Ric does something romantic]], she's touched. If she notices.
* SheCleansUpNicely
* SingleTargetSexuality: Towards Ric.
* SnotBubble
* TheStoic
* SugarAndIcePersonality
* TeacherStudentRomance: [[ItMakesSenseInContext Well, she is a student in Kou's class.]]

!The Mayor/Village Chief

!!!!!!Voiced by: Creator/KeijiFujiwara
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.
* BunnyEarsLawyer
* [[spoiler: ChekhovsGunman]]
* {{Cloudcuckoolander}}
* CrouchingMoronHiddenBadass
* TheFaceless
* FullBodyDisguise
* LineOfSightName: How The Mayor names people once they become citizens of the community.
* ObfuscatingStupidity: The Mayor has had moments of deep insight at times, belying the aloof nature he normally sports.
** [[spoiler:At one point, you know he takes seriously his role as 'village chief' as the man behind the curtains, just to protect Nino and some other secrets of the riverbed.]]
* ObliviousToLove: Seemingly everyone knows that P-ko loves him but him.
* [[spoiler:PapaWolf: To Nino. Her parents gave him the responsibility of taking care of how this 'special child' is.]]
* PeopleInRubberSuits
* TeamDad


!!!!!!Voiced by: Creator/TomokazuSugita
A former musician who hit rock bottom and now lives under the bridge. He's always seen wearing his trademark star mask. He's also in love with Nino and always tries to make Kou look stupid in front of her. Under the bridge, he provides all the music for events.
* ButtMonkey: He's on-par with Kou.
* TheChewToy: He ends up being put in a lot of painful situations.
* CrazyJealousGuy
* DoggedNiceGuy: Only to Nino. A Type 2, but has hints of Type 1 in his actions at times.
* EvenEvilHasStandards: [[spoiler:In Episode 8 of Season 2, he helps Ric break out of his hypnosis because he wants to win Nino with his own power.]]
* ExpressiveMask: He uses TWO of them. How can he even...?
* FunTShirt: ORE NO T-SHIRT.
* HopelessSuitor
* {{Jerkass}}
* KarmaHoudini: He messed up Nino's tape and Ric gets blamed for it.
* MomentKiller: Voluntarily (in front of Ric and Nino) and sometimes involuntarily.
* NotSoDifferent: Has more in common with Kou than you'd expect.
* TheResenter: Towards Ric, oh so much.
* SecretIdentity: Hoshi used to be a singer that even made it to the Oricon charts, but he lost his inspiration (his management never let him use his own songs) and became Hoshi to get away from everything.


!!!!!!Voiced by: Creator/TakehitoKoyasu
A former soldier that became a man of the (wrong) cloth once he came to Arakawa. He constantly carries all manner of guns with him and clearly still holds a military mindset. He provides church services under the bridge.
* AFatherToHisMen
* HighPressureBlood: Out of his scar
* HugeGuyTinyGirl: To every woman in the village. Amazoness is a notable exception.
* LivingLieDetector
* 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.
* LoveMartyr: To Maria.
* MadBomber
* NunTooHoly
* OneManArmy
* OnlyKnownByTheirNickname
* PerpetualFrowner
* PersonOfMassDestruction
* PhenotypeStereotype
* RealMenWearPink: ...Or nun habits. And he run orphanages and feed the community with cookies.
* ScarsAreForever
* TheStoic
** but NotSoStoic when his {{Jerkass}} crush's insults get to him, which results in HighPressureBlood.
* TriggerHappy
* WholesomeCrossdresser


!!!!!!Voiced by: Creator/ChiwaSaito
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.
* ClingyJealousGirl: She ''doesn't'' take it well when she finds out about Sister's feelings for Maria.
* DeliberatelyCuteChild
* [[DragonLady Dragon Girl]]: Humorously subverted.
* EnfanteTerrible
* GirlishPigtails
* HairOfGoldHeartOfGold: Subverted. She's young, cheerful and cute, but she's quite the EnfanteTerrible.
* HulkingOut
* JapanesePronouns: In Japanese, her way of speech is quite antiquated. She refers to herself with "washi", the pronoun old men use.
* LittleMissBadass
* LimitedWardrobe
* PrecociousCrush: On Sister.
* {{Yandere}}: Towards Sister.


!!!!!!Voiced by: Creator/MiyukiSawashiro
A former spy who came to live under the bridge. A sadist at heart, she delights in emasculating every man in the community, especially Sister, with whom she has a history. She runs a sheep farm for the community.
* BitchInSheepsClothing
* TheBully
* DarkActionGirl
* DoubleStandardAbuseFemaleOnMale
* CoolBigSis: But to the ''girls'' exclusively.
* FauxAffablyEvil
* IShallTauntYou: Her addiction.
* NotAMorningPerson
* PetTheDog: Her treatment of Stella after their "duel".
* 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
* 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)]].
* TranquilFury
* TheVamp
* YouGottaHaveBlueHair: Her hair is pink, which stands out since everyone else in the cast has realistic hair colors.

!The Iron Brothers, Tetsuo and Tetsuro

!!!!!!Voiced by: Creator/YukoSanpei (Tetsuo), Creator/RyokoShintani (Tetsuro)
A pair of brothers always seen wearing iron helmets. They claim to have been experimented on and have psychic powers, which are only kept in check by the helmets. They are very lively and run an oil drum bathhouse under the bridge.
* [[spoiler: CainAndAbel]]: Subverted in Episode 10 of Season 2.
* {{Deliberately Cute Child}}ren
* {{Expressive Mask}}s
* HulkingOut: In Episode 10 of Season 2. Given the circumstances of training with Sister... just like Stella.
* PowerLimiter: Their masks. Or so they claim.
* PsychicPowers: Or so they claim.
* ThemeTwinNaming
* WonderTwinPowers

!Toru "Shiro" Shirai

!!!!!!Voiced by: Creator/HochuOtsuka
A former salaryman who now lives under the bridge. He can't go anywhere unless he's able to walk on a white line, so he always walks with a field striper.
* CrouchingMoronHiddenBadass
* DisappearedDad: Hasn't seen his wife or daughter for six years, though they don't seem to mind and fully encourage his dreams of becoming a champion liner.
* NiceGuy
* ObliviousToLove: From [[spoiler: Shimazaki]].
* SuperOCD
* SmarterThanYouLook


!!!!!!Voiced by: Creator/ChiakiOmigawa
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.
* {{Adorkable}}
* BananaPeel: Taken UpToEleven with SlipperySkid in her first appearance.
* ButtMonkey: The first one among the girls.
* CurtainsMatchTheWindow
* CuteClumsyGirl
* DrivesLikeCrazy
* ExpressiveHair: Or [[ExpressiveAccessory hair ribbon]].
* FieryRedhead
* HairDecorations: Or IdiotHair, as it's unclear what that thing on her head really is.
* TheHeart
* HopelessSuitor: For the Mayor.
* NaiveEverygirl
* [[OlderThantheyLook Older than She Looks]]: 22 years old according to [[AllThereInTheManual the official info]] but looks somewhat [[LegalJailbait Loli-like]].


!!!!!!Voiced by: [[Creator/YuichiNagashima Cho]]
Kou's assistant from his company. He came searching for Kou when he never came back to the office. He is steadfastly loyal to his boss, but also has a very unhealthy obsession with him. He oversees the running of Kou's company in his absence and helps Kou with his projects under the bridge.
* EveryoneCanSeeIt: Everyone knows he's in love with Kou...whether they want to or not.
* IncompatibleOrientation: With Kou
* ManHug: He goes after them often with Kou.
* {{Megane}}
* PapaWolf: ''Very'' protective of Kou.
* StraightGay
* SubordinateExcuse: At least he sometimes ''is'' useful.


!!!!!!Voiced by: Creator/RieTanaka
Takai's assistant, a beautiful, but somewhat shady lady, who seems to play her own game under both Kou's and his father's heads.
* BeautyMark
* [[spoiler:{{Brainwashed}}: After finding out that Shiro was married, she run away from the riverbed and joins a group that seeks into revealing one for all all the secrets of Nino and the riverbed. How? She was disillusioned, brokenhearted... and she accepts returning to her 'former' spy job... thanks to a suit that is worth 300 million yen.]]
* EnigmaticMinion: Somehow. At least below the villagers and Kou himself. [[spoiler:She is undoubtedly loyal to Kou's dad, but after receiving a menace from the Mayor himself, she gets into her own agenda being more careful in getting details. In fact, she gets into the riverbed to know better the secrets surrounding Nino... but gets convinced, by her, that she can still be the weird person she was in the past and wants to be happy with Shiro, throwing her 'present' behind... buut... things get complicated...]]
* TheMole: [[spoiler:Or so she was, until she comes in terms thanks to the love and acceptance of the other villagers (who completely ignore that she was an spy) until things came out wrong.]]
* 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.
** [[spoiler:She gets brokenhearted and gets a HeroicBSOD after opening a package for Shiro... that revealed to her that he was married. Did I mention this happens after the throw-away party where she gets officially accepted into the village, dismissing every single suspicion that she was a 'spy'?]]

!Seki Ichinomiya

!!!!!!Voiced by: Creator/RikiyaKoyama
Kou'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 Kou. A cutthroat businessman, he gets what he wants when he wants it and proudly stands tall over his accomplishments.
* DisappearedDad
* FourEyesZeroSoul: Subverted. He's very harsh and curt with Kou, but he does have some love for his son.
* HumiliationConga / BreakTheHaughty: Subverted in second to last episode of the first season. He leaves [[spoiler:the same situation his son'd encountered in the beginning of the story]] all classy and looking so cool he annoys the policeman.
* {{Megane}}
* PapaWolf
* ScaryShinyGlasses

!Last Samurai
!!!!!!Voiced by: Creator/YuuichiNakamura
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: The last of them, obviously.
* {{Keigo}}

!!!!!!Voiced by: Creator/FumihikoTachiki
Rumored to have once been the boss of a Yakuza-like gang of bird-headed people, and supposedly betrayed their trust when he fell in love and eloped with the bee princess Jacqueline. It's debatable how much of that story is true, but what is known is that he is deeply in love with her.
* AlwaysSaveTheGirl: As long as the girl is Jacqueline.
* EvenTheGuysWantHim: Or at least cannot help swooning over his [[{{Badass}} manliness]] in Ric and Hoshi's case.
* 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 riverbed's villagers.
* InterspeciesRomance: Both him and his lover seem to be insane enough to consider their relationship as this.
* RatedMForManly
* SatelliteCharacter: To Jacqueline.
* SickeninglySweethearts: With Jacqueline.
* SingleTargetSexuality: With Jacqueline.
* {{Yakuza}}: Apparently.

!!!!!!Voiced by: Creator/YukoGoto
A girl in a bee costume who fell madly in love with Billy and is practically inseparable from him. She runs a day spa called Queen Bee under the bridge.
* DamselInDistress: She's quite helpless, which allows Billy to always come to the rescue and show some manliness.
* TheDitz
* DragonLady: Prior to coming to Arakawa, if her story is to be believed.
* InterspeciesRomance
* SatelliteCharacter: To Billy.
* SickeninglySweethearts: With Billy.
* SingleTargetSexuality: With Billy.

!!!!!!Voiced by: Creator/TomokazuSeki
A {{mangaka}} who publishes his works under the pen name "Potato-chip Kuwabara." A total sci-fi geek who likes to think of himself as a space captain defending the Earth from aliens. He becomes interested in the people living under the bridge when he sees Nino, who he thinks is a Venusian plotting to destroy the planet.

* [[spoiler:{{Brainwashed}}: He falls into the same organization with Shimazaki... his main reason would be the trope below...]]
* CaptainSpaceDefenderOfEarth: He THINKS and BELIEVES that Nino is an alien-princess that would harm the Earth. It also inspires him to draw a sci-fi manga... [[spoiler:that could be quite [[TruthInTelevision true]] because by no coincidence, the similarities are not so beyond the truth of the riverbed...]]
* CreatorBreakdown: InUniverse; he ran away from his career as a mangaka when his [[ExecutiveMeddling editor kept forcing him]] to draw {{Moe}} manga instead of sci-fi.
* [[spoiler:TheMole: Besides being {{brainwashed}} because of his own desire to be 'defender of the Earth', he still keeps an affection to the Arakawa Riverbed's community, especially since he knows that the organization he falls with are not good people at ''ALL''. Especially their boss and leader, when he finds out a terrible secret concerning the Mayor, Nino and the Venusians, as well. He just wants to keep playing as [[TheHero a hero]], no matter what side he takes.]]

!!!!!!Voiced by: Creator/YuuKobayashi
A mysterious Amazon woman who lives down the river from the 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).
* AmazonianBeauty
* NoGuyWantsAnAmazon
* {{Stripperiffic}}: Her outfit goes along with the Amazon warrior theme, but it leaves very little to the imagination.
* TinyGuyHugeGirl: To Kou. [[spoiler:And Hoshi.]]
* {{Tsundere}}: {{Lampshade|Hanging}}d by Kou and as creepy as it sounds.
* UncannyValleyMakeup
* ValleyGirl: What her Saitama dialect is translated as.