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Here are the chracter features in the anime/manga series Linebarrels of Iron. Beware of spoilers.

Contributions are most welcome.

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    Juda Corporation 

Koichi Hayase

Voiced by: Tetsuya Kakihara (Japanese) and Josh Grelle (English)

The Hero of the story, a bullied 14-year old kid who becomes Linebarrel's Factor.


  • Accidental Pervert
  • Break the Haughty: And boy, does he get broken. Hard.
  • Butt-Monkey
  • Cannot Spit It Out: His feelings for Emi
  • Clueless Chick Magnet: The guy has four beautiful girls all after him... and yet, he only appears to be romantically interested in Emi.
  • Declaration of Protection: Towards Emi, mostly. But despite not noticing the other girls' crushes, he's still quite protective towards all of them.
  • First Episode Resurrection: In the anime.
  • The Hero: Is clearly this among JUDA after his character development with his concern for allies and innocents get the respect of his allies and even Reiji comes to see him as one, particularly when he sets up Kiriyama to fight "a real hero", but saying it's not Reiji himself. His absence during the timeskip marks some dark moments for the cast
  • Heroes Prefer Swords: The main weapons of Linebarrel being two Katanas.
  • Hot-Blooded
  • Idiot Hero
  • Jerkass: Before Character Development (though with touches of Jerkass Woobie)
  • Jumped at the Call: Deconstructed. His behaviour in his first battles caused lots of property damage, as he lashes out towards anyone.
  • My God, What Have I Done?
  • Ordinary High-School Student: At first anyways.
  • Shut Up, Hannibal!: To Kato and, in the anime, to Masaki.
  • Unskilled, but Strong: For the most part he just uses Linebarrel's extreme power to win. Although he can hardly be called a poor fighter, compared to Reiji's skillful swordsman ship he basically just wacks people with his swords as hard as he can and can't really use the Executor as anything other than a wide area single shot blast. He pretty much could not beat Reiji straight up, without using modes B and C to overpower him. In the manga he's shown to be a flat out terrible pilot if he can't use Linebarrel. In one fight he needs to use a Jinrai (an Mass produced Arma that can match a Machina in the right hands), and he does more damage to the enemy by jumping out and punching it with his Factor enhanced strength than the Jinrai's weapons.
    • He gets better after dealing with Amagatsu as he's shown to be able to use Linebarrel better and access more of its powers.
    • This is true of him outside of the suit as while his Factor-enhanced strength is enough against most people, against a truly skilled fighter like Domyouji, his blows are dodged quite easily.
  • Unstoppable Rage: In response to Yajima's death. And, towards the end of the anime, in response to Emi's.
  • The Mentor: To Miu in the manga. After seeing her in action he soon realizes he has his work cut out for him and his efforts ultimately fail due to vanishing during the timeskip, where things go to hell for her
  • What the Hell, Hero?: He receives quite a lot of these, especially at first.

Emi Kizaki

Voiced by: Mamiko Noto (Japanese) and Alexis Tipton (English)

A mysterious girl of about 14, who gives Koichi the power to use Linebarrel. Somehow, she is also one of its Factors.


Reiji Moritsugu

Voiced by: Yuuichi Nakamura (Japanese) and J. Michael Tatum (English)

25-year-old Commander of JUDA's Special Task Force and Vardant's Factor.


  • The Ace: In the manga, Hayase even stated that Moritsugu is the role model the he want to become.
  • Ace Pilot: And how!
  • Blood Knight: As a kid he would used to get into fights under the pretext of "being an ally of justice". A recent battle in the manga hints that he still has that tendency.
  • Curb-Stomp Battle: His first two fights with Koichi consist of nothing but him beating the crap out of the poor kid. However, he gets on the receiving side of this trope in the anime when Emi gets in Linebarrel's cockpit.
  • Dark and Troubled Past: He grew up being raised by his sister and upon finding out he can't feel pain, starts getting into fights, and that eventually ends up getting him in trouble with the law.
  • Fake Defector
  • Feel No Pain
  • Four Eyes, Zero Soul: Because of his past, he has trouble empathizing. In both stories, Kouichi remedies that, though Character Development goes further in the manga.
  • Genius Bruiser: He's well educated about things, and quite a mastermind in the manga.
  • I Am Not Left-Handed: One of Verdant's eyes appears damaged and when Koichi attempts to attack him from his "blind side", Reiji has the eye heal at that moment.
  • Mundane Made Awesome: In the manga, he makes having a bunch of bags along his arms look quite dramatic. Koichi attempts to do the same and fails.
  • Jerk with a Heart of Gold
  • The Stoic
  • Stoic Spectacles
  • Tall, Dark, and Snarky

Kunio Ishigami

Voiced by: Joji Nakata (Japanese) and Barry Yandell (English)

An eccentric old man and CEO of the JUDA company, as well as the Factor of Juda in the manga.


Yui Ogawa

Voiced by: Sayaka Ohara (Japanese) and Tiffany Grant (English)

Ishigami's 26-year-old secretery.

Satoru Yamashita

Voiced by: Miyuki Sawashiro (Japanese) and Mary Morgan (English)

A 16-year-old member of the JUDA STF and Factor of Hind-Kind


Miu Kujou

Voiced by: Aya Hirano (Japanese) and Monica Rial (English)

A 16-year-old girl who is the Factor of Painkiller. In the anime, she is already a member of JUDA, whilst in the manga, she is an idol singer, who decided to join in the middle part of the storyline after Koichi saves her.

  • Action Girl: More so in the manga as Painkiller's far more combat able in it.
  • Badass Adorable
  • Beware the Nice Ones: In the manga, easily shocking those only familiar with her anime rendition.
  • Broken Bird: She was already being bullied to the point of committing suicide, but after the timeskip she gets fired from her job as an idol singer because the factors joined with Katou, her fans turn on her, and her wanting to kill them ended up turning Deceive into a humanioid, leading to Izuna's death.
  • Canon Immigrant: Originally a character created for the anime, who eventually made it into the original manga, albeit with a completely different story and personality.
    • Subverted: She was originally made for the manga, but the anime decided to introduce her much much earlier, using only the bare-bone early manga design notes as a base.
  • Decapitation Presentation: In the manga.
  • Every Girl Is Cuter with Hair Decs: Her huge pink ribbon.
  • Gag Boobs: Anime only, but she's no way lacking in the manga.
  • Heroic BSoD: In the anime, after Masaki gives her a nasty "The Reason You Suck" Speech, telling her that she's too weak to be a Factor.
    • She fakes one in the manga in her first fight before revealing that this version of Painkiller uses a pair of Attack Drone mechanical beasts.
    • She gets a real one every time she is faced with bullies or angry fans; especially after the time skip, which starts a nasty series of events
  • Hopeless Suitor: Towards Koichi.
  • Interrupted Suicide: In the manga, she was ready to jump off a building, until Koichi saw her and talked her out of it.
  • Killed Off for Real: In the manga.
  • Nice Girl: At least in the anime.
  • Parental Abandonment
  • Rescue Romance: About the one thing her anime self and manga self have in common is her falling in love with Koichi after he saved her (though in different ways).
  • Senpai Kohai: After Koichi gets into high school, Miu turns out to his senpai. Ironically, some time after they find this out, Miu becomes Painkiller's Factor, and she noted that this time, he's her senpai.
  • Start of Darkness: Izuna's death in the manga.
  • Yandere: The manga version of her is... different. In fact, she's so fucked up in the head that Painkiller made her its factor believing she was dying. She finally snaps after Kouichi disappears when the Time Skip happens.

The Endou twins

A pair 14-year-old twins who are both Factors for Deceive.

Shizuna

Voiced by: Kana Ueda (Japanese) and Cherami Leigh (English)

Izuna's loud and energetic older twin sister and a member of JUDA. She controls Deceive's movements. When the Deceive is destroyed, she does the same in Deceive V, a Kiriyama-made Arma mimicking the functionality of the original Machina, with Domyouji taking Izuna's place.


Izuna

Voiced by: Rie Kugimiya (Japanese) and Aaron Dismuke (English)

Shizuna's more reserved younger twin brother, also with JUDA. He controls Deceive's Never Crack cables.

Rachel Calvin

Voiced by: Chiwa Saito (Japanese) and Tia Ballard (English)

JUDA's 12 year old Chief of Research and Development. She mainly handles the Machina's maintainance.


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     Katou Organization 

Hisataka Katou

Voiced by: Jun Fukuyama (Japanese) and Todd Haberkorn (English)

Terror syndicate Katou Organization's mysterious leader. He pilots the Arma Tsukuyomi. Factor of the Shangri-La.


Masaki Sugiwara

Voiced by: Susumu Chiba (Japanese) and Tony Patterson (English)

Factor of Glein-Neidr, and, by extention, Naked, and Captain of Katou's 1st Squad.


  • Authority Equals Asskicking: He's the top ranking captain of the Kato Organization, and also the best pilot.
  • Breaking Speech: He becomes fond of these as the ending of the anime comes close. They work on Miu but not on Koichi.
  • The Dragon: To Katou in the manga. In the anime, he acts like he is, when in reality, he is this to Central.
    • The Lancer: Since Katou has decided to become the Big Good in the manga, that would make Masaki this.
  • Heel–Face Turn:In the manga, with the rest of the Katou Organization.
  • Never Got to Say Goodbye: The reason why he's so pissed off with Ishigami in the manga; he literally treated him like his own father, and is justifiably upset when he left them with no explanation immediately after mounting Juda.
  • Nice Hat
  • Peek-a-Bangs: Justified in the anime. He needs it to hide his cybernetic eye, which would reveal that he's a Machina Human. Not quite explained in the manga.
  • Superpower Lottery: The beam spamming heavily armored Glein Nieder is much much better than all the other Machina. Even Linebarrel can't dent it without help. AND it has Naked inside it.

Yasosuke Sanada

Captain of Katou's 2nd Squad. An old man who appears only the manga. He pilots the custom Arma, Tsuranagi.


Soubi Nakajima

Voiced by: Hirofumi Nojima (Japanese) and Ian Sinclair (English)

17-year-old Factor of Talisman whose story (and indeed, personality itself) depends on the medium. In the anime, he captains Katou's 2nd Squad in place of the manga-exclusive Sanada, who loves inflicting pain on others. In the manga, he is the 72-year old leader of his village (having stopped aging at 17 due his being a Factor), who eventually decides to join JUDA's Special Task Force.


Demitri

Voiced by: Tomoyuki Shimura (Japanese) and Kent Williams (English)

31-year-old captain of Katou's 3rd Squad. He pilots the custom Arma, Kagutsuchi.


Takuro Sawatari

Voiced by: Tetsu Inada (Japanese) and Bryan Massey (English)

22-year-old captain of Katou's 4th Squad. Pilots the custom Arma, Idaten. Eventually betreays Katou, and becomes the Factor of the Machina, Lostbarrel.


  • Badass Normal: Like most members of the Kato Organization.
  • Blood Knight
  • Hot-Blooded: Complete with Hot Blooded Sideburns. That is until Dimitri is killed off in the manga, which changes his disposition significantly
  • Evil Counterpart: Lostbarrel to Linebarrel. Practically identical, but has one key feature different: unlike Linebarrel, Lostbarrel uses dual laser blades.
  • Expository Hairstyle Change: In the manga, he stops spiking his hair up after Demitri's death, ultimately signifying being no longer faithful to Katou
  • Jerkass
  • Karma Houdini
  • Pet the Dog: His interactions with Demitri (and Soubi in the anime) bring out his better side.
  • Spanner in the Works: Once he gains Lostbarrel, he goes rogue as the rest of Katou Organization merges with Juda. He works with criminal groups, he works with some of the Human-Machina factions, he even helps Kouichi out in a fight or two. He's also the one who puts down Miu when she crosses her Moral Event Horizon.
    • The moment he recognizes Katou's new Jinrai pilots as being Demitri's killers could be counted as a minor one as his vengeance disrupts the plan for the battle to some degree.
  • Villainous Friendship: With Soubi in the anime, and with Demitri in both continuities.
  • Wild Card: In the manga, [[spoiler, after his betrayal of Katou, he goes about working for a number of other groups, but all that is known is that he has Hayase on his list of targets]]

Matt Reznor

Captain of Katou's 5th Squad who, like Sanada, only appears in the manga. He pilots the custom Arma, Kagaseo.


  • Heel–Face Turn: With the rest of the Katou Organization.
  • Hugmongous Mecha: He pilots a massive arma in Katou's last major battle before the merger. Unfortunately for him, his opponent is Reiji, who disables it rather easily.

Jack Smith

Voiced by: Yoshikazu Sato (Japanese), Kenji Nomura (Super Robot Wars UX) and Bob Carter (English)

32-year-old captain of Katou's 6th Squad. A samurai who needs to no Arma to fight: his body literally is an Arma!


Yurianne Faithful

Voiced by: Emi Shinohara (Japanese) and Michele Specht (English)

27-year-old captain of Katou's 7th squad. She pilots the custom Arma, Tsubakihime.


  • Badass Normal: Can fight against with the best of the Machina in a technically weaker machine.
  • Best Beer Ever
  • Boobs of Steel: One of the curvier women in the manga and is quite competent in a number of fields.
  • Chainsaw Good: Her Arma, the Tsubaki-Hime, has a couple of arm-mounted buzzsaws.
  • Dark Action Girl
  • Evil Redhead
  • Flash Step: Her arma is able to do this, being the main arma to do so (as it's seen on Machinae like Linebarrel and Naked)
  • High-Heel–Face Turn.
  • Mysterious Woman
  • Spanner in the Works: In the manga, she ends up tossing a few small wrenches into Reiji's plans for Kiriyama by sharing files with Hayase, causing Kiriyama to accelerate his timetable when he finds out. This is somewhat offset by the fact doing so put Hayase on the same page as Reiji quickly, enabling them to save the day.
  • The Vamp: Just ask Izuna... or in the manga Hayase, causing her to lend assistance in a couple of cases (overlapping with Friendly Enemy)

Riku Ousei

Voiced by: Daisuke Sakaguchi (Japanese) and Sonny Strait (English)

Psycho captain of Katou's 8th squad. He pilots the custom Arma, Yaoyorozu.

     Others 

Risako Niiyama

Voiced by: Noriko Shitaya (Japanese) and Carrie Savage (English)

Childhood Friend to Koichi and Yajima, who's had a crush on the former for long time.


Hideaki Yajima

Voiced by: Go Shinomiya (Japanese) and Joel McDonald (English)

Childhood Friend of Koichi and Risako, who's protected the former from bullies since they were kids. His death was a major turning point for Koichi. He eventually comes back to life as the Factor to the Machina Apparition, and eventually joins up with his best friend.


Makoto Domyouji

Voiced by: Jun Konno (Japanese) and Jerry Jewell (English)

A student at Koichi's school who is good at fighting and loves to flirt with cute girls. After being amazed at Linebarrel, he decides to join Hayase's group of friends (dragging along Furuya, who used to bully Koichi), dubbing them the "Hayase Corps." Eventually pilots a custom Jin-Rai (a production model machine created by Kiriyama Heavy Industries intended to replace Arma, and possibly, JUDA's machina) and joins up the members of JUDA.


Eiji Kiriyama

Voiced by: Show Hayami (Japanese) and Vic Mignogna (English)

Director of Kiriyama Heavy Industries, who as known Reiji since they were kids. He is the Factor of Pretender.


Amagatsu Kizaki

Voiced by: Masahiko Tanaka (Japanese), John Swasey (English)

Emi's father and Katou's master. The creator of Machina and nanomachines. Was the original Factor for Linebarrel, and created the current Linebarrel and Lostbarrel.


     Central *spoilers for the anime adaptation* 

     Human Machina *spoilers for the original manga* 

Human Machina

Ohba Maxi


A Humanoid-type Human-Machina with the appearance of a teenage Japanese girl, she starts out fighting the Human-Machina on her own, before joining Juda because of her attraction to Moritsugu. Being a Machina herself, she does not pilot one, but an exo-skeleton called Ravbarrel.

  • Artificial Human
  • Badass Adorable
  • Defector from Decadence: She fights against the Human-Machina for reasons she is not willing to divulge.
  • Dude Magnet: Inverted, she seems easily attracted to guys, particularly those doing heroic actions as Furuya (a sort of chubby geek at this point) got some notice from her when he risked his very normal human life to save her from some falling Debris.
  • Power Armor: The Ravbarrel is an exo-skeleton.

Deus Ex Machina

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Alternative Title(s): Kurogane No Linebarrel

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