Touma Kamijou | Accelerator | Railgun's Main Cast (Mikoto Misaka)
The Teachers and Students of Academy City | Academy City Founders, Researchers and Law Enforcement
Academy City's Dark Side | The Sisters | Other Science Side Characters
England and its Allies | The Roman Catholic Church | GREMLIN | True GREMLIN | Other Magic Side Characters
Other Light Novel, Manga, and Anime Characters | Audio Drama, Video Game, and Movie Characters
Academy City Leadership
An ancient sorcerer who resides within the Windowless Building, the founder and General Superintendent of Academy City. He rules Academy City from the shadows, having a higher authority than even the directors. He has a hand in almost everything going on within the city, and spends most of his time weaving innumerable plots together. Possibly the Big Bad of the entire series, though his motives remain mostly unknown save for two — creating an Artificial Heaven, and wanting Shiage Hamazura double-dead for messing with his calculations for his many plans.
- 0% Approval Rating:
- He made an enemy of close to everyone on the Magic Side because he decided to do scientific research instead of magic.I see, said Aleister with a slight laugh. It seems I must make an enemy of you as well. The sect said to be the strictest of the Christian Church, the Golden magic cabal said to be the greatest in the world, and even my country and family. I have made enemies of many different things over the course of my life, so I never thought I would still have something to lose after coming so far.
- In a satiric SS written by Kamachi around volume 6 of the main story, after making a mysterious appearance Aleister gets defeated by Touma for the sake of attaining world peace. No one feels sorry for the beaten general superintendent.Kamijou was called to the faculty room because he had beaten up the board chairman. As the boy hung his head, a female PE teacher wearing a green tracksuit laughed loudly. Ah hah hah hah! I completely understand how you feel, but you went a bit too far. Not letting the other person finish speaking isnt like you, boy. The harmonious mood made it clear that board chairman was not popular with those who worked under him.
- He made an enemy of close to everyone on the Magic Side because he decided to do scientific research instead of magic.
- All-Powerful Bystander: This guy apparently possesses a level of personal power that would let him end 99% of the plots in an instant, but he just stays in his tube and schemes. The only times he's ever come out of it:
- The first time (sort of... he was outside of it and inside of his tube at the same time, somehow) was when Fiamma of the Right was about to escape, at which point he half-kills the guy in a single blow and leaves him for dead. Remember that Fiamma was up until then essentially fighting against the entire world and winning.
- The second time was at the end of the manhunt for Othinus, where he broke through the dimensions ("Phases") to access a hidden world in which live the True GREMLIN, a group of Magic Gods each more powerful than Othinus ever was (for she never even knew of their existence) and from all the world's religions. He confronts them, and they managed to piss him off (or so he let them believe) enough to use his magic name and immediately summon the Blasting Rod. The result of their battle is unknown, only that Aleister came back with a third of his body badly burnt.
- To explain further how he could end his plots by himself, he brought the concept of modern Western magic to its apogee, and, as it is still strongly influenced by him, if he wanted he could use the archetype of Western magic to affect the very foundation of the modern day Magic side. It is initially unknown why he didn't abuse this to destroy the Magic side but it's later revealed it's because there are still branches of magic which he didn't influence, which is how Coronzon sets up several plans to counter Aleister's own brand of magic.
- The Antichrist: Implied, given his plans and actions and that his sorcery name is Beast666.
- Amplifier Artifact: The Blasting Rod has the ability to amplify the magics power to 10 times what the target thinks it is and if he were to face the same opponent again, the rod would amplify his power to 10 times what it was when he faced that same opponent the first time making him exponentially stronger with every encounter against the same person(s).
- Ascend to a Higher Plane of Existence: When he scolds Fiamma after his Godhood Seeker plan fails, he outright says he has achieved such a thing — though it isn't far-fetched to say that he hasn't attained the highest position yet. He could have even become a Majin, but he made specific alterations to himself to stop it from happening.
- Assimilation Plot: His vision, as revealed in Volume 6 to some degree, involves setting up an Artificial Heaven of AIM fields encompassing the entire world by spreading the MISAKA network worldwide and using the influence of Hyouka Kazakiri on it. Basically, by creating a world covered in AIM, all magic will be destroyed. Whether this is his primary Evil Plan or merely a backup plan of sorts is yet to be seen, as he seems to have several other plans for Academy City. New Testament volume 10 reveals that this is simply one step in a much grander and far-reaching plan, which involves the absolute destruction of all magic and restoring the world to its "pure" state. What he plans on doing once that's accomplished remains something of a mystery.
- Authority Equals Asskicking: He's the creator and acting chairmen of the most advanced city on the planet, and he has the personal power to show for it.
- Back from the Dead: After getting stabbed through the heart by archbishop Lola Stuart and believed to be dead, Aleister returns shortly afterwards through his billions of "possibilities".
- Big Bad: He's behind almost all of the problems the protagonists face. It's ambiguous as to whether his ultimate goals would be beneficial or catastrophic to the world.
- Big Brother Is Watching: His People Jar has access to all the data being processed in Academy City, from security cameras to communications equipment. On top of that, he also has a special network of nano-machines called UNDERLINE spread throughout the city that gets him information that even other security systems don't have access to.
- Broken Bird: Hints himself to be one. When Motoharu warns that Touma will eventually destroy him if he doesn't stop screwing with him, Aleister simply replies that he was destroyed a long time ago.
- A Majin also asks if his plans have to do with the tear stain on the last page of his journal. Immediately after, Aleister loses his cool and attacks. Turns out in a later volume that he was faking said anger, though it's revealed that tear was from his grief at losing his first daughter and being unable to be at her side.
- Catch and Return: He managed to weaponize the Abracadabra spell, originally a warding charm against curses, into this. His version of the spell allows him to seize another magician's curse during its transmission phase, from anywhere in the world and direct it toward his opponents. Since he technically didn't cast the original curse, it can't be traced back to him nor does it cost him any extra mana to use.
- The Chessmaster: Probably the greatest in the series; he does little else for the entirety of the first series and for the most part of New Testament.
- Chivalrous Pervert: Noted by many contemporaries to have been a pervert who loved sex jokes, wrote cheap erotic novels and teased others in ways that would be considered sexual harassment in modern times. Despite this Aleister was never interested in love (due to how easily popular he was with women due to his androgynous looks and eccentric charisma) until he met his future wife Rose, and he acted as a complete gentleman in his attempts to woo her.
- Had the silver-haired young man seen enough value in the ephemeral woman standing next to him to suppress that egotistic side of himself? With the perverted side of himself closed up like a cuckoo clock, the silver-haired human looked just like a gentleman with a strict policy of ladies first.
- His female persona after his dissolution into his many alternative possiblities thanks to Corozon's attack does show this carefree and mischevious side of Aleister.
- Code Name: Beast666.
- Cute Witch: The possibility following Touma around that contains the original Aleister's mind has this appearance going on.
- Deceptive Disciple: Is hinted to be one to Aiwass.
- Didn't See That Coming:
- Crowley's plans are derailed spectacularly when Shiage beats Mugino. Shiage was supposed to die in that confrontation, meaning hes now an unknown variable.
- He also didn't see the end of New Testament 13 coming. World Rejecter is a total unknown to him, in that he doesn't seem to be even slightly aware of his existence. What impact this will have on his plans is yet unknown, but Laura Stewart thinks everything is about to go pear-shaped for him like never before.
- Didn't Think This Through: After splitting into over a billion possibilities, he never gave regard to how the logistics of adding one billion more people would affect the world food and oil supply until Touma brings it up.
- Disproportionate Retribution: His hunting of Shiage could be interpreted as this. See It's Personal below for the details.
- Does Not Like Shoes: Since he's almost always in his tank, he's always barefoot. Even the few times he comes out, he's still sans shoes - including while in Russia. It doesn't faze him in the least.
- Dude Looks Like a Lady: The novels describe him as androgynous, so much so that he cannot be described as conclusively male or female, at least based on his looks.
- Enemy Mine: When Coronzon appears, he teams up with Touma in order to defeat it.
- Failure Gambit: Quite a few of his plans, such as the Level 6 Shift with the Misaka clones, would only be able to truly take off if Touma or other forces foiled the original stated goal. It turns out this is because he's cursed to eternal failure. The only way his true plans can therefore succeed is by having other plans whose failure will push forward the agendas of said plans.
- Faking the Dead: He faked his death to get the Magic side off his trail before he founded Academy City. Only really high-ranking Magic side characters know that he is still alive.
- For Science!: Well, For Magic! He was said to have sacrificed his wife's life in a magical experiment. His daughter's whereabouts are unknown, although he was said to have used children no older than his daughter for his experiments. The truth is a bit more complicated than that.
- Gambit Roulette: Combined with Xanatos Gambit and Xanatos Speed Chess. Aleister's plan does not require all the various steps to succeed. Or any of the various steps to succeed for that matter. If a part of the plan is a success, excellent. If it fails? Then it is merely a step onto a new path to his eventual victory.
- Gender Bender: After Coronzon kills his original body and he splits up into his over a billion possibilities, the possibility that houses his original consciousness and can be considered the current "prime" Aleister is in the form of a young girl.
- Good Thing You Can Heal: Stays alive after being shot many times by Motoharu, including receiving bullets to the head.
- The Heretic: He was the most famous sorcerer of his time and the unofficial representative to the Magic side. His defection to the Science side was not well-received, since he is the best sorcerer, and by defecting to Science, he unofficially proclaimed the superiority of the Science side. This earned him the hatred of close to everyone on the Magic side.
- Heroic Sacrifice: In order to prevent the tragedies produced by collisions of the phases, Aleister bounds the damage of the released sparks to himself each time he uses magic, which results in his body getting torn from within.
- Hidden Agenda Villain: For most of the series we only know some steps and parts he requires for his plans and that it involves destroying the Magic Side along the way, at least until New Testament 18, which reveals his aim is destroying all phases to stop all 'sparks', the results of using magic and the collisions between phases that influence the fate of random people and even lead to their unavoidable deaths.
- Hidden Depths: He's just as vulnerable to Kakeru's World Rejecter as anyone else who bears conflicting desires in their heart and there are several points where he hints that he's not entirely certain that his plans are the right way to go about things, noting that they're little different than the plans of the Magic Gods he so despises.
- Beneath his usual stoic androgynous appearance Aleister is an incredible pervert who loves sex jokes and writing erotica. He's also an avid mountain climber who once attempted to climb the K2 with no extra oxygen supply.
- Historical Domain Character: With a Historical Villain Upgrade, considering that the nickname of The Wickedest Man In The World was said of the real Aleister Crowley.
- I Need You Stronger: Regularly manipulates Touma into dealing with incidents, wanting him to toughen up for some reason.
- Inferiority Superiority Complex: Orsola Aquinas suggests this is the reason for Aleister's arrogant attitude and his use of sarcasm and insults to belittle and tease others. Aleister lacks confidence on himself and wants others to recognize his skills and talent, so he acts important and superior to others and cannot relax until he compares himself with others and finds himself superior.
- It's Personal:
- Aleister, for the first time ever, is livid when Shiage absolutely fucks all his plans up the wazoo with what Aleister considers "dumb luck." Now he won't rest until the guy's dead.
- He also gets a touch of this with the High Priest: when he sends Nouta Kihara to kill the High Priest, the final blow is delivered with a message that amounts to "This is for my daughter, whose name you couldn't even be bothered to know."
- Kill Me Now, or Forever Stay Your Hand: When Heaven Canceler calls him out on his immoral actions one too many times, Aleister dares him to end the whole thing by pressing the kill-switch to the machines keeping him alive. The doctor refuses. Aleister says that was his final chance and disables the kill-switch just in case the doctor changes his mind in the future.
- Mad Scientist: He was said to have sacrificed his wife's life in a magical experiment and to have used children no older than his daughter for his experiments. The truth of these claims is unknown, given that the novels also mention newspapers baselessly criticizing and extremely villifing Crowley during his life in the UK. He still counts as one given the sacrifices he's willing to make for his plan and his extensive knowledge of both magic and science.
- Magic Staff: His weapon of choice is the Blasting Rod, a replica of his late mentor's, Allan Bennett, own staff. The staff magnifies his magic power by ten fold what his target think it is and considering how famous a magician Aleister is, the staff has a pretty sizeable base number to work with. Did we mention this isn't a one time power boost? If his target were to somehow survive their encouter against him, the next time they face him, they would have to deal with another ten fold power increase to Aleister's magic, meaning Aleister would have one-hundred times the power in their second battle!
- Malicious Slander: Was baselessly criticized and extremely vilified during his life as a magician prior to faking his death due to his eccentric nature, which was only encouraged by Aleister adopting the wicked personality he was accused off by others to get a rise of them and frighten them.
- The Man Behind the Man: To all of Academy City.
- Man in the Machine: Described as someone who relies entirely on mechanical devices for the function of his body and mind.Aleister left most of his bodily functions to his life support device, so he technically did not even need to blink. He did not need to moisten his eyeballs while in that constantly regulated liquid. To Aleister, the brain was nothing more than another part. It was a separate existence from ones soul or ones life, so it could be replaced by a substitute as many times as needed. His inspirations were drawn out by cables, gradually ripened within a computer, and returned to Aleisters brain as his personal opinion. The life support device was his skin, his organs, his brain. It was possible that giant collection of machinery was alive. Just like a transplanted organ became a part of the patients body, this collection of metal had approached so close to humanity that it was hard to say whether it was machine or man.
- Manipulative Bastard: And what a bastard he is.
- Master of Illusion: This is Aleister's response in a series where magicians are typically expected to throw around elemental magics or other corperal magics to defend themselves. Thanks to the spell Spiritual Tripping, taught to him by his one true mentor and friend in the Golden Dawn Cabal, Allan Bennett, Aleister has a limitless number of ways to deal with his enemies in a duel. The spell works on the principle of Your Mind Makes It Real. It links Aleister to his target's mind and by miming an action, such as motioning as if he was stabbing them, the spell forces the target to believe Aleister does indeed have a knife in his hand and is stabbing them, regardless of distance, resulting in them taking damage from the illusionary attack.
- Me's a Crowd: After Lola Stuart/Corozon takes the Windowless Building over and seemingly kills him, he divides himself into 1,083,092,867 copies of himself, each of them representing one of Aleister's possibilities.
- Not so Above It All: The female copy of himself (that contains his mind, even!) that joins up with Touma in NT 19 seems to get a real kick out of screwing with him as much as possible with not-so-subtle teasing, in contrast to his original self's calm personality.
- Only a Flesh Wound: During his fight with Mathers, Aleister's body gets torn to shreds in an explosion, yet he keeps standing.
- Papa Wolf: The reason he created the "Science Side" and wants to destroy magic? His daughter Lilith died because of it. When he was younger, simply learning his future daughter would die because of magic "sparks" similar to the ones his magic cabal was producing was enough to convince him to destroy the cabal and curse its members to keep her safe.
- People Jars: Floats upside down in one.
- Physical God: He defeated Fiamma of the Right before the guy knew what was happening. He also confronted a group of Magic Gods. While he came back with a third of his body badly burnt, he still took on a group of bona fide gods, and came back alive.
- Reality Warper: It is revealed at the end of New Testament volume 11 that he possesses something called the Archetype Controller, which can basically create or destroy Jungian archetypes, which would be like the equivalent of controlling Tropes, in a way. It is revealed that, using this power, he literally created the entire concept of a "Science side", and made Academy City and its espers part of the archetype of "mankinds worship of science".
- Spanner in the Works: Aiwass eventually remarks that, despite constant re-calculations, Crowley's plans are beginning to come apart at the seams thanks to the combination of Touma, Accelerator, and Shiage.
- Squishy Wizard: While he is one of the most powerful characters in the series, much like Accelerator and Fiamma Aleister is still a normal human beneath his powers, so Touma managed to take him down with one punch.
- Staying Alive: After being hunted down by pursuers from the magic side, he 'collapses like a burst bag', receiving injuries bad enough to be officially declared dead. The fact of his survival is being kept hidden from all but the highest ranking members of the magic side.
- The Stoic: Usually doesn't show many overt expressions, but...
- Not So Stoic: According to Noukan Kihara, he has as a habit of trying to sound rational when he's handling everything through emotion. There are many examples of this; for example when Aiwass asks if he envies Touma, Accelerator, and Shiage for being heroic, Aleister's voice actually strains. He also tries to threaten Leivinia Birdway when she taunts him over his incapacity to do anything at the time, and goes into a Tranquil Fury when asked if his plans have to do with a tear stain on the last page of his journal by one of the Majin.
- Superpower Lottery: He is one of the most powerful characters yet introduced, with the only characters above him are Aiwass and the Majin members of True GREMLIN, and even then it's only a possibility. However, he really doesn't do much except sit around inside his People Jar, that is, until the volume 22 epilogue, where he curb-stomped Fiamma.
- There Is No Kill Like Overkill: Expends vast resources and hires almost every member of Academy City's Dark Side to kill Shiage in Volume 19. Lampshaded by The Girl In The Dress, who thought Aleister was going overboard.
- Übermensch: He is of the Aeon of Horus, one who rejects the old laws and wants to create a new world with new laws. He refers to most of the other characters, mostly the Christians, as being of the Aeon of Osiris, saying they are stuck in the old laws and unable to advance like him.
- Villainous BSoD:
- Well-Intentioned Extremist: Aleister's plan is to destroy all phases, erasing all magic and mysticism to return the world to its 'pure' state. More importantly, this would end the 'sparks' created by the invisible collisions between phases that can randomly influence people's fates, including forcibly causing their deaths.
- Who Needs Their Whole Body?: Returns to the Windowless Building after his fight with the Magic Gods with a third of his body burnt.
- Xanatos Gambit: His plan is set up in a way so that, somehow, both success and failure will still lead to the desired result. Due to being cursed to eternal failure, his plans are an arrangement of many smaller plans that built upon the failure of the previous scheme. Even things like his own death is within the scope of his plans and the grand plan is designed to succeed only after a streak of infinitive failures.
- If one part broke, he would pile up the wreckage. If two parts were lost, he would take a detour around the cracks in the ground. He believed that a failure could be used as a handhold or foothold for the next part. So those whose thoughts were bound by the normal serial way of thinking could not understand his parallel actions. They wondered why that wicked madman was so intent on running full-force into the wall of ruin.
- You Killed My Father: High Priest of True GREMLIN was involved with the death of his daughter. Noukan Kihara passes this message to High Priest before killing him on Aleister's orders.
- Voiced by: Yutaka Nakano (Japanese), Cole Brown (English, Index 1-2/Railgun 1-2), Bill Brooks (Index 3/Accelerator)
A high ranking Academy City doctor whose face resembles a frog, leading to his nickname, "The Frog-Faced Doctor". He often treats Touma's injuries after his latest escapades. An old friend of Crowley, as chief doctor he built and oversees the machinery that keeps the ancient mage alive. He is a kind-hearted old man who faithfully follows his Hippocratic Oath and treats the injuries of everyone who comes to him, good or bad.
- Almighty Janitor: As a co-founder of Academy City, he may outrank even the Kiharas if he flexed his political muscles. He hasn't seen it fit to do so, preferring to be a perfectly ordinary doctor.
- Badass Boast: Not your usual boast, but still pretty badass and fitting for a doctor."Don't die. As long as you don't die, I can save you."
- Captain Ersatz: To Dr. Sado in Space Battleship Yamato, then he got reverse ersatzed in Space Battleship Yamato 2199.
- Catchphrase: "Who do you think I am?"
- Dark and Troubled Past: Mentions to Accelerator that he has seen far more blood than Accelerator has. He also, apparently, created Dark Legacy in his younger days, and has a history with Aleister.
- Dirty Old Man: A one-off joke in Aisa's arc, where he thinks Touma keeps going back to the hospital because he has a nurse fetish. When Touma replies that he doesn't, Heaven Canceler muses:Really? Pity, I thought I found a compatriot.
- Embarrassing Nickname: Frog-Faced Doctor, though he doesn't know people call him that.
- Ink-Suit Actor: Many people, especially the voice actors and the production crew who worked on the English version of the show, mentions that Cole Brown resembles Heaven Canceller.
- The Medic: It's all he does. The only thing he can't cure is very specific, brain-related injuries, such as Touma's memory loss.
- My Greatest Failure: Hes pretty upset that he couldnt do anything about Toumas amnesia.
- Mysterious Past: Many, many years before the start of the series, Heaven Canceler was the one who saved Aleister's life while he was both on the verge of death and being hunted relentlessly by pissed off sorcerers, taking refuge in a small European village. While he was treating him, Heaven Canceler inspired and urged Aleister to create Academy City in Japan, saying he would help him in any way. Despite being one of the two de facto creators of Academy City, he decided to remain a doctor as he always has been.
- Only Known by Their Nickname: His real name is not yet officially mentioned.
- Red Baron: His nickname Heaven Canceller, received because he's such a good doctor that he can bring people back from the brink of death itself, effectively cancelling their trip to Heaven. His Badass Boast says it all."As long as you don't die, I can save you."
- Spanner in the Works: While the Hound Dogs were near his hospital he jams their communication system, only to talk with a former patient who happens to be one of the Hound Dogs.
- What the Hell, Hero?: Or rather What the Hell Villain. Calls out Crowley on his immoral activities, but takes no action due to his Hippocratic Oath.
The Board of Directors
The mother of Suama Oyafune, one of Touma's teachers. She persuades Touma to intervene in the tensions between Academy City and the Roman Catholic Church, since the Board of Directors refuse to take action.
- Blackmail: In the 19th novel, it's revealed that Shiokishi has been blackmailing her with threats against her daughter to keep her from interfering in his business.
- Screw the Rules, I Have Connections!: Her specialty is using her position as the Board of Directors and using agreements and powers that she was given in order to pull strings.
- She Knows Too Much: Defied the first time, subverted the second time. She orders Motoharu to shoot her to prevent the Academy City from finding out that she was in contact with Touma. On the second time, SCHOOL is ordered to assassinate her, but the people from ITEM comment that it doesn't matter whether she lives or dies, as she isn't involved in important matters pertaining to the dark side. She recovers from Motoharu's gunshot.
- Token Good Teammate: She's one of the people in the Board of Directors who cares about the students. Tsuchimikado calls her as the number one good person in the Board of Directors. There's another good one, but with Seria Kumokawa directing his actions it's hard to get his support.
- Voiced by: Ryousuke Kanemoto (JP), Doug Jackson (EN)
The man in charge of Academy City's military research.
- Blackmail: He's blackmailing Oyafune to keep her from meddling in his business, which includes threatening her daughter.
- Crazy-Prepared: The man walks around in a suit of Powered Armor whenever possible, has a stronghold designed to withstand both espers and nukes, and has two bodyguard factions set to kill the other under specific circumstances.
- Powered Armor: Shows up in one the first time he meets with GROUP. Apparently, he's so paranoid about his safety that he wears it whenever he has the opportunity.
- They Know Too Much: He hunts down everyone trying to uncover DRAGON's identity, including GROUP.
- Things Man Was Not Meant to Know: He calls Aiwass something to this effect, saying that he wishes he never knew of it in the first place.
- Voiced by: Yuya Murakami (JP), Randy Pearlman (EN)
The man who funds ITEM. It seems that he is involved with Academy City's dark side.
- Bulletproof Vest: Wore one prior to Accelerator paying him a visit with a shotgun blast to his chest. He survived, but got injuries.
- Hoist by His Own Petard: Gets killed by the assassin he hires after she finds out that he funds ITEM, the group which injured her partner. Also because while he had arranged for her to receive an Academy City life support system for said partner, he also arranged to have a tiny transmitter implanted into said partner's body that had the capability to shut down at least four of his organs when activated. Fittingly, he is killed by that very transmitter because Stephanie saw through his scheme, removed it and implanted back into him, literally killing Thomas with his own weapon.
- The Man Behind the Man: He's the main financial backer to ITEM.
- Revenge: He hasn't forgotten that Accelerator shot him in the chest, so he hires an assassin to kill him. Then the assassin killed him.
- Token Minority: He was the only other known non-Japanese board member aside from Aleister Crowley to exist.
A member of Academy Citys board of directors who has a primarily focus on medicine.
- And I Must Scream: Is left as a fraction of her self that is unable to do anything, forced to stay like that forever until Fräulein decides to kill her.
- Ascend to a Higher Plane of Existence: Became an AIM thought being.
- Creepy Cockroach: Commands a swarm of roaches that are voraciously hungry and will eat almost anything organic or inorganic. The roaches can sometimes disrupt an esper's powers by unnerving them so much that they cannot concentrate.
- Didn't See That Coming: Her defeat is sealed when Fremea Seivelun becomes brave enough to try to defend herself instead of waiting for a hero to save her.
- Eaten Alive: By her own roaches which led to her becoming an AIM thought being.
- For Science!: Her goal in research is not immortality or cures for diseases but rather the "high score."
- Just Desserts: Her physical body was eaten by her own cockroaches, then her essence as an AIM thought being was eaten by Fraulein.
- Mad Scientist: Created a deadly plague called Wild Card Coccus, super roaches, and the cybernetics of Rensa. It is hinted that she became one only after the thought processes of a Kihara clan member were implanted into her head.
- Not So Invincible After All: Despite being an AIM being, she is still eaten by Fraulein.
- Older than They Look: She is 70, but looks young due to special treatments.
- Übermensch: There's her plan to become an AIM thought being and her plan to create a world without heroes.
- Xanatos Speed Chess: Manipulated all the heroes of Academy City as a step in her plan, gathered the 7 Level 5s and then ascended to AIM being-hood and then take advantage of fluid mechanics in order to create something unimaginable with the hope that at each stage something that would exceed her expectations would occur.
- You Have Outlived Your Usefulness: Fremea Seivelun was essential to her plans, but Yukami callously orders her termination once her part was complete. The heroes save her.
Tsugutoshi KaizumiThe man in charge of locating Gemstone espers. Seria Kumokawa is employed as his advisor.
- Face Death with Dignity: When Motoharu threatens him with torture and death, he calmly says to Get It Over With. He survives.
- Frame-Up: Hisako Yakumi manipulates things so that Motoharu thinks he was responsible for attempts on Maika's life and is the head of the Agitate Halation project.
- I Need a Freaking Drink: He is normally Straight Edge, but he will take a drink during stressful situations.
- Made of Iron: He regains consciousness rather quickly from getting beaten up and tortured.
- Voiced by: Hinata Tadokoro (Japanese), Brian Mathis (English)
The man in charge of ensuring Academy City's food supply and internal security. He's also the main financial backer of Disciplinary Action.
In the anime, his DA codename is Breeder.
- Does This Remind You of Anything?: A man in a high position of power who travels with trains only with a fine taste for good food? The closest country that uses this method of travel for top officials is in North Korea.
- I'm a Humanitarian: Rumored to be cannibal, but the truth is so much worse. He likes to flavor his food with liquid body crystal extracted from kidnapped children hidden on aboard his cruise-liner.
- The Man Behind the Man: One of the main financial backers of DA.
- Properly Paranoid: Rides in an armored subway train tailored for his own use when needed for personal travels.
- Wicked Cultured: He's a fan of fine dining. However, he is rumored to be a cannibal.
- You Have Outlived Your Usefulness: Decides to cut his financial ties with DA and employ the Scavengers to get rid of them since he was having more and more trouble with them.
A member of the Board of Directors who finds himself at odds with the new Board Chairman's intentions going forward with Academy City. Formerly an elite member of a rescue squad.
- Fallen Hero: He used to be a rescue squad elite before he got deeply involved in Academy City's Dark Side.
- False Flag Operation: When Maidono Hoshimi's kidnapping attempt is foiled by Touma and Anti-Skill is coming down on his head, he attempts to escape while setting off a fire and explosion at his home, intending to fake injuries and abuse his connections to make it look like Anti-Skill tried to kill rather than capture him and stall the resulting investigation to get a chance to destroy any incriminating evidence.
- Insistent Terminology: Being a resident of Academy City, he can't comprehend other supernatural forces without making it fit within a Science-based worldview. So he refers to the magic he uses as an application of 'Minimum Collision Theory'.
- Necessarily Evil: He claims that the Dark Side is a necessary component of Academy City and its function. Touma refutes this ideal as he knows how.
- Starter Villain: For the 1st Volume of Genesis Testament.
- Stronger Than They Look: Being an adult in Academy City and a member of its leadership, Mikoto assumed that he would have no way to defend himself against a Level 5, as all Espers are school age. Norito proved her wrong by launching a powerful magic attack at her.
- Unskilled, but Strong: He's able to use magic courtesy of R&C Occultics, although not only does he not actually realize it's magic and thus limiting his knowledge and creativity with it, the magic in question is actually pretty basic and requires him to speak out before the spells take effect.
- Would Hurt a Child: He tries to arrange Last Order's kidnapping to use her as leverage against Accelerator's plan to dismantle the Dark Side.
Researchers and Scientists
Head of the infamous Kihara family. He is also responsible for beginning the Level 6 projects.
- Absent-Minded Professor: He admits that he gets so excited about his experiments that he's almost died several times due to not minding his surroundings hence his Artificial Limbs. At one point, he realizes that both Touma and Gunha are keeping the berserk Mikoto in check and gets so excited about the theoretical interactions between the three powers that he lets Misaki escape without noticing.
- All Your Powers Combined: He uses Kiyama's research to give himself access to Multiskill as well. He admits he doesn't have her sheer quantity of 10,000 or so, but he does have the advantage of quality because he specifically chose powerful and "interesting" Espers. And thanks to controlling Exterior, he also has his own version of Mental Out.
- Artificial Limbs: His right hand is fake and detachable. He lost it in an experiment. He implies from the way he casually knocks his skull and there's a ringing sound that a good portion of his body is actually artificial.
- Ascend to a Higher Plane of Existence: Word of God say that after his defeat, Misaki tried to make it so he could never think or concentrate ever again, but Gensei managed to avoid her attempt and instead ditched his physical body and hid as an AIM thought being in Misaka's subconsciousness.
- Big Bad: He's one for the Railgun series.
- Bitch in Sheep's Clothing: At first seems like a nice old man. But in reality, he's a Jerk with a Heart of Jerk.
- Black Eyes of Crazy: His left eye is black with a rippling iris. It foreshadows the fact that he has Multiskill, used for his Clairvoyance. Even that eye is artificial.
- Blow You Away: While he has Multiskill, he shows a particular preference for the Aero Shooter ability to fire powerful blasts of air and to create footholds under his feet to avoid falling. He also uses it to try and knock Misaki out by literally stealing the air right out her lungs.
- Body Double: Uses these to avoid capture.
- The Chessmaster: Pretty much all the time, but this comes to the fore especially during the Railgun side of the School Festival arc.
- Crazy-Prepared: Armed himself with very specific and stolen esper abilities designed to subvert Misaki's traps.
- Cyborg: Heavily implied going by his history and artificial parts.
- Evil Old Folks: An old and mean Mad Scientist.
- Eyes Always Shut: He only opens his eyes when he is excited.
- Faux Affably Evil: He's polite, friendly and an easily distracted scientist. He also thinks nothing of destroying an entire city just to see how it would happen, has sent children into comas for flimsy reasons and was behind a project to murder ten thousand clones.
- For Science!: He is willing to put the lives of everyone in the city including his own for the sake of seeing the results of his experiments.
- Graceful Loser: When Misaki finally defeats him, he compliments her.
- Greater-Scope Villain: Despite not appering in person until the Daihasei Arc, Gensei plays a major role in every Railgun arcs prior to it; he gave Kiyama Harumi the idea for creating Level Upper, he is essentially what motivates Harumi and Aritomi Haruki to become the antagonists of their respective arcs, his granddaughter is the master mind behind the Poltergeist incidents and he is one of the chief scientists behind the Level 6 shift.
- Hive Queen: During the Railgun side of the School Festival, he reveals he is the controller of his own small-scale Level Upper network, giving him access to a number of dangerous abilities.
- It Runs in the Family: All of his relatives are evil and/or manipulative just like him in some ways.
- Lack of Empathy: Was completely unaffected by his experiments putting a bunch of little kids in comas. He even gleefully let his own family members volunteer themselves for his experiments. He doesn't even care if the entire city gets wiped out if Mikoto hits Level 6.
- Mad Scientist: The shining example, with his incredibly depraved experiments and lack of respect for human lives.
- Meaningful Name: His given name means "Illusory Life". It can also mean "Primitive", "Primeval", or "Resurrection".
- Out-Gambitted: After a long game of back-and-forth with Misaki, he successfully pulls through her traps and contingencies and takes the limit release code for Exterior from her mind. Thanks to Misaki's Memory Gambit, however, he ends up entering the self-destruct code for Exterior by mistake, destroying it and knocking him out with the backlash.
- Perpetual Smiler: IS ALWAYS SMILING, since he has absolutely no remorse for his actions.
- Power Parasite: Kidnaps specific espers in order hook them up to his own Multiskill network and gain their abilities, which allowed him to overcome Misaki's security measures with ease. The specific abilities he had demonstrated were Clairvoyance, an ice beam, electric shock immunity, telekinetically tearing circular holes through metal walls, and Aero Shooter.
- Self Made Super Powers: Creates his own version of the Level Upper network and chooses the abilities specifically to reach Exterior.
- Talking Is a Free Action: Averted. When distracted by the possible results that could come from Gunha, Touma and Mikoto shifting to level 6 he begins talking about the possibilities aloud. His captive quickly escapes while he isn't paying attention, leading him to "apologize" and state he has a bad habit of this.
- The Sociopath: All this guy cares about is pursuing his scientific interests and he doesnt give a flying fuck who he hurts in the process.
- What Happened to the Mouse?: It is unknown what happened to Gensei following to destruction of Exterior as he hasn't made any apperance since the Daihasei Arc. Word of God revealed he had escaped punishment shortly after capture by becoming an AIM thought being.
- Would Hurt a Child:
- Gleefully experimented on several orphans and then ultimately sending them all into long-term comas without so much as a care. To add insult to injury, he even made their unwitting teacher watch as her precious students became comatose.
- Later on, he would locate and kidnap some specific volunteers for his Multiskill network, in order to have the powers necessary to beat Misaki's security measures.
Commander of the Hound Dogs black-ops unit who serves directly under Aleister Crowley, Amata is a sadistic scientist, and the one who originally discovered Accelerator and taught him how to control his power. He is Gensei's son.
- Awesomeness by Analysis: He easily exploits Accelerator's weak points with surprisingly simple logic. (i.e. Pulling back his punch right before it connects to avoid a vector redirect, or rewriting sound vectors with a whistle to counter a vacuum blast from Accelerator).
- Badass Normal: He's a Level 0 with absolutely no powers whatsoever... and is fully capable of kicking Accelerator's ass.
- Bad Boss: Doesn't care about his mooks at all.
- Crippling Overspecialization: He has a fighting style designed to bypass Accelerator's Attack Reflector, which he helped develop, by pulling his punches at just the right moment to "reflect" them right into Accelerator's face. When Accelerator's electrode battery runs out, leaving his brain malfunctioning, Kihara actually finds himself under pressure when the Level 5 esper simply starts attacking him like a dumb animal, as his counter style no longer works.
- Curb-Stomp Battle: He knows virtually every aspect of Accelerator's power. Their reunion was completely one-sided.
- Evil Mentor: His methods of teaching Accelerator on how to control his power? By regularly kicking the shit out of him and torturing him. When he was just a kid.
- Genius Bruiser: Is a scientist and also well versed in both hand-to-hand combat and weaponry.
- In Love with Your Carnage: Gets very impressed when Accelerator slaughters a bunch of his mooks without using his powers.(after watching the slaughter): Damn that was cool! I just might fall for you, Accelerator!
- Lack of Empathy: To him, killing someone is the same as pulling out weeds.
- Misanthrope Supreme: Because he finds all humans to be nothing more than garbage, Vento's God's Divine Punishment has no effect on him, since he can't technically bear her any ill will.
- No Body Left Behind: Accelerator uses his newly awakened black wings to shoot Kihara into the sky Railgun-style, causing him to be burned and disintegrated alive.
- No-Sell: Whether it be esper powers or magic, Amata has a knack for rendering them ineffective for one reason or another. He knows the precise weak-points of Accelerator's abilities, rendering them useless, while his disregard for all of humanity also renders God's Divine Punishment useless against him.
- Tattooed Crook: He certainly looks like one.
- Unwitting Pawn: Is completely unaware of the Magic Side. During Vento of the Front's attack on Academy City, Aleister Crowley used him to kidnap Last Order and activate FUZE=Kazakiri, and didn't really care when Accelerator killed him.
- Would Hurt a Child: He doesn't care who stands in his way, he'll kill them. However, he admits that he didn't kill Accelerator in the past because he was a child.
A teacher of Child Errors (Academy City orphans) as well as a scientist specializing in AIM and the human brain.
- A-Cup Angst: Also pointed out by one of her students, although in reality she's about average.
- All Your Powers Combined: She eventually proves able to channel the Esper abilities of everyone who has ever used the Level Upper. For info, there is 10,000+ students who had used it so she has a lot of abilities.
- Anti-Villain: She's one of the few villains of the series who's goals are the most noble; she is trying to find a way to cure her comatose students when the normal means were denied to her. So noble are her goals that Mikoto's willing to forgive her and help her should she choose another way.
- Arc Villain: Of the Level Upper arc.
- The Atoner: She will do anything it takes to cure the students she unintentionally harmed.
- Bucket Booby-Trap: Falls victim to one coutesy of her Child Error students during one of her flashbacks.
- Cloudcuckoolander: "My it's getting hot; time to take off my blouse... hey what's wrong?"
- Cool Car: She drives a Lamborghini Gallardo! ... That's one hell of a salary she's got...
- Didn't Think This Through: Part of her Level Upper plan was the assumption that since Level Upper doesn't cause any permanent damage it's safe for her to use, if perhaps not ethical. When Uiharu points out that some students live alone or could pass out while bathing, it's obvious that she never thought of that.
- Exhausted Eye Bags: Due to working without sleep to save her students.
- Faux Horrific: Her tendency to strip without provocation gives birth to the urban legend of "The Undresstress", and while it definitely startles people witness to it, the legends make it sound far worse than it is.
- Hot Teacher: One of her students kept asking her to be his girlfriend.
- I Am Not Pretty: She's kind of spacy and assumes it's okay to strip in public since no one really wants to see someone as unattractive as her anyway. In universe reactions seem to support the idea that at worst she looks tired.
- Innocent Fanservice Girl: "Why are you so concerned? My skirt got dirtied, of course I should take it off."
- Mad Scientist: "Not quite normal" is putting it politely even if she's a very nice person, and is actually a Reluctant Mad Scientist (see Anti-Villain entry above).
- Mama Bear: To her students.
- Metallicar Syndrome: A noticeable aversion, as her car is so distinctive that they're able to spot it easily on traffic cameras while looking for her.
- Moral Pragmatist: A researcher that, while not a bad person, has no problem doing questionable things to achive her goals. Most notably, she created the "Level-Upper" as a drug to lure unsuspecting but desperate Espers into using it to increase their powers, only for them to fall into a coma afterward. Her ultimate goal is to save a group of children she views as her precious students, and even created a way to reverse the process after she achieved her goal. That said, she also states that if the reversal process doesn't work, she still wouldn't stop her plans. While that ends up not working, she swears she still won't hesitate to use another unsavory methods to achieve the same ends, if that's what it takes. This later comes back to bite her, because when Misaka finds out Kiyama is involved in another shady experiment, she turns the children over to Therestina, who later reveals herself as the true Big Bad behind the children's predicament in the first place.
- Motherly Scientist: The Trope Namer and Trope Codifier of the 'They're like my own children' scenario.
- Parental Substitute: To the cruelly named and casually abandoned "Child Errors" of Academy City.
- Self Made Super Powers: As a Side Effect of being the creator and controller of the Level Upper, Kiyama Harumi gains "Multi-skill," the ability to use the skills and powers of its over 10,000 users. Kihara Gensei later creates his own version.
- Shipper on Deck: She immediately picks up on Mikoto's feelings for Touma, and encourages her to ask him out.
- Superpower Lottery: Via the Level Upper, she has access to virtually hundreds of low-level Esper abilities. It's a helluva lot more dangerous than it sounds, demonstrated when she curb-stomped an entire Anti-Skill swat-team, and even gave Mikoto a run for her money.
- Tender Tears: Being reunited with her cured students.
- Unkempt Beauty: She has bags under her eyes. Flashbacks show her without them, until she saw what happened to her students and seemed to develop them instantly.
- Well-Intentioned Extremist: In a subversion, unlike most antagonists in the Index/Railgun, she's well aware that what she's doing with Level Upper is wrong, but as least she cares about the people who use it and made a cure for them ahead of time, once she's done using the Level Upper Network. It's also worth noting that she made many attempts to cure her students through legitimate means. It was only because all of these attempts were blocked that she resorted to Level Upper in the first place.
The head of Multi Active Rescue unit or "MAR", a search and rescue unit, and an anime-original character from A Certain Scientific Railgun.
- Actor Allusion: If she makes you think of Beatrice from Umineko: When They Cry, you're not the only one. Guess who voiced her.
- Ax-Crazy: She develops that look in her face late in the anime after her motives are realized.
- Bad Boss:Wouldn't be a member of the Kihara Dynasty if she wasn't one to her subordinates.
- Big Bad: Of the second half of A Certain Scientific Railgun.
- Bitch in Sheep's Clothing: Dear God is she ever! When she first appears, she seems like a Reasonable Authority Figure, right up to the point where her relationship to Gensei is revealed. She then throws away all pretenses and ceases to pretend to be anything other than utterly despicable and totally batshit insane!
- Breaking Speech: Punctuated with a railgun... and answered back in kind by Mikoto.
- Bond Villain Stupidity: She literally had all the heroes at her feet in the end of Episode 24... unfortunately she was too busy gloating and kicking our heroes while they were down to wonder just WHY little Uiharu would ask where the control room to the "Capacity Down" was when she could not even get up to deactivate it...
- But Not Too Foreign: Seeing as Gensei is her grandfather and she has a very western name, she's presumably Japanese and something else.
- Call-Back: She has a small tube of candies, which she offers to kids after asking their favorite color. This mirrors Komoe's explanation of how an esper's personal reality would mean that the candy would come out whatever color they want. And indeed, espers tend to get the color they asked for.
- Canon Immigrant: Introduced in the anime but confirmed to exist in the light novels, being mentioned by multiple characters in both New Testament and Genesis Testament.
- Combat Pragmatist: She curb-stomps Mikoto after neutralizing her electrical powers with the Capacity Down.
- Consulting a Convicted Killer: In Railgun S, Mikoto visits her in her cell for advice on saving Febri's life. Therestina really didn't want to help her, but most of her words proved quite useful, including giving Mikoto insight into Haruki Aritomi's motives.
- Didn't See That Coming: She lost because a) she didn't expect Mikoto could use objects other than coins for the Railgun attack and b) she didn't expect that Saten was a Level 0, making her immune to Capacity Down, allowing her to find the device and smash it.
- Evil Laugh: Of a variety so fucked up and crazy that its horrific.
- The Fatalist: Declares that everybody in Academy City is a research specimen and has no hope of being anything greater. Mikoto tells her that's a load of crap before defeating her.
- Good Eyes, Evil Eyes: She seems almost like a normal character at first, but once she's revealed to be the Big Bad, her eyes look much more sinister.
- Mad Scientist's Beautiful Daughter: Played straight, as she's certainly easy on the eyes, and the man responsible for the experiment that put those kids Kiyama's trying to save in their comas? He's her grandfather. Subverted too: she's going to complete the experiment.
- Powered Armor: Pilots one along with the rest of MAR.
- Humongous Mecha: Also pilots one of these... while wearing her powered armor.
- Psychotic Smirk: The camera angle focuses in on her mouth anytime she does this prior to The Reveal that she's the Big Bad.
- Reasonable Authority Figure: She seems like this right up until the point where her relationship to Gensei is revealed, at which point all pretenses fall down like the walls of Jericho.
- Rocket Punch: Her Humongous Mecha packs four of them.
- Slasher Smile: OH GOD THAT ACCURSED SMILE.
- Smug Snake: Once her plans really start getting underway. Even after the events of the first season, when she's in prison, she still acts like she's winning.
A scientist who worked on and heavily invested in Project Radio Noise and the Level 6 Project. He was left bankrupt when the Level 6 Project was shut down. In response, he angrily infected Last Order's brain with a computer virus that would cause every member of the Sisters to go berserk and attack people, only to be stopped by Accelerator and his colleague Kikyou Yoshikawa.
- Alliterative Name: Ao Amai
- Better to Die than Be Killed: He notes that with the failure of the virus to spread to the rest of the Misaka Network, the backers he had outside of Academy City would not be pleased and would not hesitate in killing him, and not necessarily being quick about it. The people inside Academy City wouldn't be happy to learn about his plans since they would have destroyed worldwide trust in the city with the clones going berserk. Dying by Kikyou's hand was probably the nicest way out he had left.
- Did You Just Punch Out Cthulhu?: He was the man who managed to shoot Accelerator in the head and give him brain damage, although this was only possible due to Accelerator being unable to divert any of his attention from saving Last Order's life from the virus.
- Disproportionate Retribution: In response to going bankrupt, he tried to get the Sisters to kill everybody.
- Mexican Standoff: He is killed when he and Kikyou get into one and both pull the trigger. Accelerator kept her from bleeding out despite his brain injury, but Amai was left to die.
- Oh, Crap!: When he sees Accelerator in his rearview mirror. It only gets worse for him after that.
- Small Role, Big Impact: He's a fairly minor antagonist who is killed in the same novel where he's introduced, but he was heavily involved in the experiments that created and killed the Sisters, and leaves Accelerator with permanent brain damage.
- Villainous Breakdown: He was going through one during his entire appearance, getting progressively unhinged.
- Would Hurt a Child: The infection he gave Last Order to spread across the Misaka Network made her very sick and nearly killed her. He didn't care about that and only worried that she would die before the virus successfully spread to the Network.
- You Have Failed Me: He knew this fate awaited him if his backers outside the City caught him after the virus failed. He took another option.
One of Academy City's researchers, as well as one of the direct heads of the "Level 6 Shift" She is also partly responsible for the rescue of Last Order from Ao Amai's plans. She is one of Accelerator's guardians, and is also one of the few people whom he generally opens up to.
- A-Cup Angst: Through an Indian Poker that Mikoto is using, it is revealed that Yoshikawa has issues with her bust size, which remains the same since her teenage years. Being roommates with Aiho doesn't help her at all.
- Athletically Challenged: She notes that she'll collapse if she walks more than an hour outside per day, while being described as not looking very athletically inclined.
- The Atoner: The rare-as-a-hen's-tooth scientist who actually felt remorse for the monstrous Level-6 program.
- Because You Were Nice to Me: The reason Accelerator respects her was because she saved him from an experiment that almost killed him.
- Clones Are People, Too: Zigzagged. She made an effort to get to know all the individual clones, but that didn't stop her from sending 10,000 of them to their deaths.
- Cool Teacher: This is what she actually wanted to be instead of a researcher. She describes herself as the kind of teacher who would know all her students' names and be liked by all of them, listen to their problems and help them, would cry at their graduation and be teased for it, etc.
- Heroic Sacrifice: Says she's glad Ao Amai chose her to take down with him, instead of Last Order or Accelerator. She calls it her one good deed, though she wished there could've been more in her life. Ultimately an Averted Trope, as she does come close to death, but Accelerator's powers save her from bleeding to death, after which the Heaven Canceler patches her up.
- I'm Not a Hero, I'm...: Accelerator and she herself note that what some might mistake for her kindness is really naivety. After all, if she was truly kind, she would have argued against the Level 6 Project for the clones' sake.
- Mexican Standoff: With Ao Amai. They shot each other at the same moment, but she survived, despite being shot in the heart at point-blank range. The bullet ruptured a coronary artery, but Accelerator's powers kept her blood flowing until she was brought to intensive care.
- Parental Substitute: She's the closest thing Accelerator had to a mother growing up.
- Shameless Fanservice Girl "[Accelerator's] just a child. It's no big deal [that he walked in on us butt naked]!
- Weight Woe: As a result of her being unemployed for some time, Yoshikawa, through an Indian Poker that Mikoto is using, is horrified that she is gainning weight, with her weight length increasing by three centimetres in one month.
A seventeen-year-old Child Prodigy from Nagatenjouki Academy. She is an expert on biopsychology, and was hired by one of the research facilities in Academy City to work on the Radio Noise project by using her Testament project, a device that allows the quick uploading of information into a human brain.
- Adaptational Attractiveness: The anime makes her much more attractive then she was in the manga by reducing the size of her eyes, which were huge and bulbous.
- Defector from Decadence: She developed the Testament project which was instrumental to Project Radio Noise, but became disillusioned with it when she had an encounter with one of the Sisters and was no longer able to not see them as humans. She started distributing money cards in alleyways and nooks and crannies in order to draw attention to the hidden parts of Academy City, and gave Misaka useful information when she discovered the Radio Noise project.
- Elegant Gothic Lolita: Seems to prefer wearing one.
- Earn Your Happy Ending: While ultimately she is unable to save the Sistersnote , she is able to save Janie and Febri. Misaka also makes a grand bargain with Misaki to alter the memories of certain key figures, which results in Academy City not disposing her.
- Good Eyes, Evil Eyes: Her eyes are far from normal-looking, but she's a nice person. She even uses her appearance as an intimidation tactic.
- Gonk: In the manga she has massive, googly eyes, though otherwise she looks normal. In the anime she looks normal.
- Gratuitous English: She has a habit of using random English words as a sort of interjection. They won't be used midsentence, but when moving from one point to the other she'll drop an appropriate English word to move her thoughts along.
- Hope Spot: She manages to install a program that would install emotions into the MISAKA network, but Last Order blocks it as the administrator. Although, it's a Foregone Conclusion if you've read the Index novels. But wait! In the anime adaptation, it's revealed that she actually made it, and the Sisters give her a heartfelt thank you.
- Money to Throw Away: Her ploy to stop the Radio Noise project is to attract bystanders by throwing cash cards at the locations where the experiments would occur so people would be watching.
- Motherly Scientist: She turns her back on the Radio Noise project once she starts considering the clones as more than just objects.
- The Power of Acting: She doesn't seem to have any esper abilities, but she's capable of terrifying her enemies into submission using psychological warfare.
- The Scapegoat: The researchers intended her to take the blame for the terrorist attacks on the research facilities and for the failure of the Radio Noise project. In the manga it's implied that she's executed, but in the anime Misaki alter some people's memories to prevent her from being charged.
- Superpower Lottery: Her supposed ability to kill anyone she has already touched. Whether this was a bluff or not, we may never know.
- Spared by the Adaptation: The manga strongly implies that she is executed by Academy City following her capture by ITEM. In the anime, she's handed over to STUDY to continue a project similar to Radio Noise, but this time she manages to earn her happy ending.
- Teen Genius: At seventeen years old, she's involved in biopsychological research and the creator of the Testament teaching device for the Radio Noise project.
- Thou Shalt Not Kill: When she fights, she avoids attacking her opponent's vital areas.
- Token Good Teammate: Of STUDY. She joined the group to keep on eye on Febri and deliver her into the hands of Mikoto and her friends. She also does not share STUDY's anti-esper sentiments.
- Touch of Death: Claims to have it to scare out some Skill Out thugs.
- Verbal Tic: Tends to lead her phrases with English words.
- What Happened to the Mouse?: In the manga, we never learn what happened to her after she got captured by Team ITEM's henchmen. In the anime, she re-appears as a central figure in the Diffusion Ghost arc, which ties into the movie.
- You Can't Go Home Again: Due to being caught up in the Dark Side of Academy City, she needs the protection of a big organization or else she would be quickly killed. In the Railgun S finale, Mikoto persuades Misaki to erase the memories of several people who have grudges against Shinobu, giving her a clean slate.
- Voiced by: Kazuyoshi Hayashi (Japanese), Mark Stoddard (English)
A security consultant who worked as an advisor to the Sisters project. He does not appear to be a researcher or to have any interest in what the group is actually doing. After the shutdown of the project, he became an informant to Misaki Shokuhou.
- Character Tic: He indicates his boredom and lack of interest in Mikoto's attempts to interfere by simply cleaning his nails while all the researchers panic. She's never able to get ahead of his security efforts.
- HeelFace Turn: Right after the Sisters arc, his next appearance is working for Misaki. She may be morally ambiguous, but she generally means well and Keitz is happy for the chance to work on something less distasteful.
- Heroic Self-Deprecation: Refuses to allow Misaka 10032 to thank him given that without his efforts Mikoto would have shut down the Level Six Shift program quite easily. How much he was involved in the actual experiments is unknown, but he does seem to feel somewhat bad about however much that was.
- No Name Given: He didn't actually get a name in the manga, even when he appeared for a second arc.
- Punch-Clock Villain: He doesn't seem to be an actual researcher. He was simply hired to keep the project running smoothly despite interruptions, a task he handles quite easily. After the project ends anyway, he gets away clean.
A genius scientist and pioneer in the field of cyborg research who first appears in the Dream Ranker arc of Railgun. Took part in a grisly experiment whereby her body and brain were split up and rearranged into two copies of herself, with cyborg parts replacing the missing limbs and organs of each.
- Crazy-Prepared: Carries around a device that can counter cyborg technology, knowing the Doppelganger might try to attack her.
- Cyborg: Turned herself into two as part of her research (she was basically split apart, and what parts that were missing were replaced with cybernetics), but her human parts were successfully recombined afterwards while the cyborg parts were assembled into The Doppelganger. She becomes one again after she's shot by the project head and the dying Doppelganger offers up her parts to save her life.
- Dark and Troubled Past: A childhood accident nearly killed her and she only survived thanks to a partial lung transplant from her mother. However, this caused her mother to weaken and fall ill, driving Ryoko to research cybernetics in the hopes of saving her.
- Gone Horribly Wrong: Totally averted. Ryoko suffered no physical or psychological detriments from being separated and subsequently recombined, aside from the need to take medication to deal with the natural aftereffects of the recombination. Her doppelganger, on the other hand...
- Half the Man He Used to Be: The experiment she performed on herself involved slicing herself into pieces and combining the resultant parts with cybernetics in order to create two copies of herself. Her biological parts were recombined after a year, while the cybernetics were used to create the Doppelganger.
- Ignored Expert: Warned her fellow scientists that putting her discarded cyborg parts back together in order to study whether they now had a soul was a bad idea. They really should have listened to her.
- Please Kill Me If It Satisfies You: When she confronts the Doppelganger a second time, she's willing to offer herself up as a Kill and Replace method if that's what it would take for the Doppelganger to stop hurting people. The Doppelganger refutes actually taking her place, however, though admits her death would be convenient as part of her intent to prevent another being like herself from being created. Ryoko still agrees, admitting that after saving her mother she's never really believed she's had much reason to live anyways and throws herself off the airship to even the Doppelganger's surprise, even if she's saved by Scavenger.
- Professor Guinea Pig: Nobody was willing to volunteer for her cyborg experiment, and since she needed the data from the experiment to save her mother, she had the procedure performed on herself.
- Teen Genius: A savant in the field of cybernetics despite being only fourteen years old, having written multiple papers on the subject such as on the creation and usage of artificial muscles. The Doppelganger would use that knowledge, available from the time they spent combined, to mimic the theoretical "soul possession".
A high school student and Chief of the 177th Branch of Judgment, where Uiharu and Kuroko work. As their sempai before becoming chief, she tries to make sure both girls do their work at Judgment seriously and at the same time want them to be safe. She is a Level 3 Esper with a power called Clairvoyance which, despite what the name implies, is actually X-ray vision.
- Ascended Extra: Originally a nameless member of Judgment in the manga, her role was significantly expanded in the Railgun anime.
- Authority Equals Asskicking: Averted in that, although she has a lower Power Level (Level 3) than Kuroko (who's a Level 4) she actually outranks the Lovable Psycho Lesbian in terms of bureaucratic authority.
- And as shown in the omake of Railgun's Manga Volume 5, in terms of raw skill she is more-than-a-match for Kuroko as a Martial Artist.
- Badass Biker: It comes in awful handy when your younger friends need to get to a battle "fast."
- Boobs of Steel: The strongest physical fighter in her branch, and also the most well-endowed.
- Cool Big Sis: To the younger girls in the Railgun cast.
- Dark and Troubled Past: Linked to the fact that she was once a member of a gang of...
- Delinquents: Which's a diametric opposite of the side of the law she's on right now.
- Desperately Looking for a Purpose in Life: What led to her joining Big Spider, and subsequently Judgment.
- Fights Like a Normal: Since X-Ray vision is her only power, she fights using martial arts. This was how she was able to join Big Spider despite their hatred of espers. Wataru Kurozuma figured out she had an ability, but kept it a secret from the rest of the gang.
- Heart Is an Awesome Power: X-ray vision may not seem to be that impressive on its own, but when that means never being surprised by concealed weapons, coupled with her bone-breaking martial-arts skills, it makes her more than a formidable match in battle.
- Improbable Age: She's the chief of the 177th branch of Judgment, which is justified since all members of Judgment are young Esper students.
- Just Friends: With Wataru Kurozuma. She desperately wants to change this, but he sees her as a little sister.
- Ms. Fanservice: The scene where she appears in her swimsuit.
- Reasonable Authority Figure: More of a "Good Cop" than Kuroko in the Judgment Brigade.
- Stupid Sexy Flanders: So devastatingly sexy in her swimsuit that she's able to provoke this reaction from the straight girls of the cast. And the Misakasexual. And a female snake.
- Sweetie Graffiti: She drew one shaped like an Umbrella of Togetherness which had her name and that of her sempai at one of her old hangouts when she was a delinquent, but said sempai scratched it out, believing that kind of relationship wouldn't work out for them and because he wanted her to have a better life.
- Team Mom: When a voice of calm and mature reason is needed amongst the girls.
- Trademark Favorite Food: Musashino Milk, which she first got from Kurozuma.
- X-Ray Vision: Her ability.
- Younger than They Look: She's a high school student? With that body?
Mii Konori's roommate and fellow Judgment officer, who knows of her dark past with Big Spider. She does not take her Judgment obligations seriously as she considers her love life a higher priority, so she is hardly seen at work, though she will help out if it is important.
- Big Damn Heroes: In the final episode of Railgun S, she rallies all of Judgment to help stop STUDY.
- Brilliant, but Lazy: She's too lazy to come to work regularly, but she's a brilliant field tactician and fighter.
- Fangirl: Of Teen Idol Hajime Hitotsui.
- The Medic: In the manga, she is seen patching Konori up after a battle.
A special little girl introduced in a mini-novel written by the author of Durarara!!, she instigated a fight between Sogiita Gunha and Misaka Mikoto. Unlike the rest of her family, she is not evil and became friends with several of the 'child errors' especially Banri. Her power is similar to Rikou Takitsubo's in that it involves the manipulation of AIM fields, but is not as advanced.
- By-the-Book Cop: Subverted. She had a decent reason to arrest Misaka and From a Certain Point of View, Gunha was resisting arrest. However, she did those things for her own selfish desire to test herself against a Level 5.
- Canon Immigrant: Originally conceived in a side story written by Narita Ryogo, Kamachi acknowledged her existence when he brought cyborgs in to the main story.
- Cyborg: Her body is 70% cyborg due to her own experimentation, forcing Heaven Canceller to replace her body parts with mechanical ones.
- Evil Uncle: Her uncle is Amata Kihara.
- I Am Not Left-Handed: Thought she was doing pretty well against Misaka until she witnessed the power the Electromaster used against Gunha and realized that Misaka had been pulling this on her the whole time.
- Little Miss Badass: In elementary school but far from helpless in a fight.
- Meaningful Name: Her given name is a Buddhist term meaning a really big number. It can also mean 10^60 (novemdecillion) or 10^72 (trevigintillion).
- Power Levels: She wants to become a Level 5 one day.
- Professor Guinea Pig: Quite happily volunteered for dangerous experiments and procedures, some of her own design, in order to achieve her goals.
- Super Speed: As a result of being a cyborg.
- Troubling Unchildlike Behaviour: Not as bad as other cases in the Raildex verse, but still...
- White Sheep: Not actually evil, though not as profound as Bersi of GREMLIN (Kagun Kihara).
A teacher at Touma's school, as well as an Anti-Skill Lieutenant. Despite being quite beautiful, she's 100% a tomboy and has something of a rather... "spartan" approach to physical fitness. She is Komoe-sensei's best friend, and one of Accelerator's and Last Order's guardians.
- Arson, Murder, and Jaywalking: Lampshaded when chasing Hamazura and other Skill-Outs.Yomikawa: U-umm. This is Aiho Yomikawa of Anti-Skill Branch 73. With charges of theft, property damage, attempted murder, and interference with a public servants duties, Im taking you pieces of shits down to hell!
Hanzou: Tch!! Miss Tits there must have a grudge to put interference with a public servants duties at the lists climax!
- The Atoner: In a conversation with Accelerator about atoning for one's sins, she says she, like Accelerator, has "a debt to pay". It's not revealed what that debt it, only that it is the reason she Wouldn't Hurt a Child. The implications are obvious.
- Authority Equals Asskicking: Comes with being an Anti-Skill officer.
- Badass Normal: She's a hardened badass who won't hesitate to run straight at a blade of pressurized water to dive under at the last second and reach her target. Also deconstructed, as for all her skills, she is often badly outgunned by espers with powerful abilities or the advanced weaponry of Academy City's dark side, forcing a powerful esper like Accelerator to come to her aid.
- Badass Teacher: She's both a high-school teacher and a member of Anti-Skill, a group of adult police officers who keep the peace in the superpower-filled Academy City.
- Bokukko: She has a very relaxed and somewhat masculine style of speech, as shown by her use of "boku".
- Cowboy Cop: When Aiho learns that a member of the Board of Directors is shielding Full Course from prosecution, hes takes it upon herself
- Demoted to Extra: She only made cameo appearances in Railgun T along with Tsuzuri.
- Did You Just Punch Out Cthulhu?: After Accelerator returns from World War 3 she punches him, then hugs him.
- Fangirl: Of Teen Idol Hajime Hitotsui.
- Gag Boobs: The writer likes pointing out her "ridiculously large" or "unbelievably huge" breasts when describing how she looks in the novels.
- Hard-Drinking Party Girl: Only Komoe-sensei can outdrink her.
- Hot Teacher: She is for being a teacher in Touma's school.
- Innocent Fanservice Girl: She has no problems being seen naked by Accelerator because she sees him as just a child.Aiho: [to a completely deadpan Accelerator when he catches her showering] Gee, I've been living alone so long I don't lock the shower doors no more. Sorry 'bout that!
- Mama Bear: Any child in her sight is immediately under her protection. It doesn't matter how much firepower she's pitted against, she will rush to their aid and defend them even at the cost of her own life. It's also Deconstructed, as her insistence on keeping children safe means that she will get into situations she can't get out of on her own in her single-minded rush to protect them even if they're far more powerful than she is.
- Neat Freak: Has a habit of cleaning her room when she gets in some kind of trouble, to the point that she tends to lose her keys in the process.
- Parental Substitute: After she adopts Accelerator and Last Order. Eventually, WORST joins the picture.
- Reasonable Authority Figure: Although she can roughhouse the people she takes in, Aiho is passionate about keeping children safe and will always have the heroes' back when the time calls for it.
- The Rest Shall Pass / The Cavalry: Will often show up near the end of an arc to take care of minor, but often crucial tasks, while the heroes deal with the main threat. Examples include taking out Awaki's subordinates in Volume 8 of Index, rescuing Rikou in Volume 15, and holding off MAR reinforcements in episode 24 of Railgun.
- She Cleans Up Nicely: Averted during the Nectar arc. Her attempt to bluff her way into a Fancy Dinner party immediately attracts suspicion, partly because she was using the business card of a non-existent businessman from a shell company, but also because — as the guards note — she was "wearing a dress that was all wrong for her" along with her usual ponytail and carrying a very conspicuous duffel bag.
- Throwing Your Shield Always Works: And throwing a riot shield can incapacitate a heavily armed terrorist without killing him!!
- Tomboy: She's a PE teacher and generally carries herself in a much more masculine way than her co-worker, Tsuzuri, often taking the fight to hand-to-hand and speaking with more relaxed and aggressive mannerisms.
- Verbal Tic: Ends most of her sentences with "-jan."
- Wouldn't Hurt a Child: Goes well out of her way to prevent serious harm from coming to children, which in her mind includes all students in the city.
A ditzy young teacher who's also a member of an Anti-Skill Swat Team. She has poor time-management skills, is always late, and completely geeks out over fighting games.
- All-Loving Hero: Despite being an absolutely worthless warrior, Tessou still strives to serve society as a kind and helping hand in need.
- Alliterative Name: Tsuzuri Tessou.
- Butt-Monkey: Episode 17 shows why she gets into a lot of trouble.
- Cute Clumsy Girl: She failed to reach her train and falls down.
- A Day in the Limelight: Episode 17 of the Railgun anime.
- Demoted to Extra: She only made a cameo appearance in Railgun T along with Yomikawa.
- Fallen Hero: After the events of Operation Handcuffs where she witnessed her fellow Anti-Skill officers killed left and right by the Hanatsuyu siblings, she began to adopt an attitude where villains need to be killed.
- Gamer Chick: She really likes fighting games.
- The Load: In spite of being a SWAT Team officer, she somehow manages to become a hostage held at knife-point whom needed Yomikawa to rescue her.
- Lovable Nerd: Helps people as part of her Anti-Skill duties.
- Killer Cop: In the post-Operation Handcuffs story, Tesso planned to get to the escaped criminals involved in Operation Handcuffs. However, Touma, Yomikawa and Kuroko were able to stop her from carrying it out.
- The Medic: One of her only useful skills is to patch others up after a battle.
- Nice Girl: Part of being an All-Loving Hero.
- One of the Kids: Loves to play arcade games in her free time.
- Proud to Be a Geek: Somewhat. It takes some Character Development on her part to show how much ass she can kick in a good fighting game.
- Voiced by: Fuyuka Ōura
An Anti-Skill officer and former teacher in Nagatenjouki Academy, she was fired from her job after her superior noted her failures in finding a suitable Level 5 candidate from the student body. She's also the culprit responsible for events when students felt paranoid about someone watching them with the "Someone's Watching You" urban legend.
- Big Bad: Of the Railgun OVA she's in.
- Dirty Cop: After Kuroko reveals that she's the culprit in the OVA.
- Fair Cop: Jounan qualifies as this since she is pretty.
- Hot Teacher: Jounan was one for Nagatenjouki Academy prior to being fired.
- Villain: Exit, Stage Left: After her reveal as the Big Bad, Jounan gets away by using a flashbang and her credentials to get a speedboat.
An Anti-Skill officer who works with Aiho in A Certain Scientific Accelerator.
- Canon Foreigner: He's only present in the anime version of A Certain Scientific Accelerator. Ito later shows in the 12th volume of ACSA.
An Anti-Skill officer who works with Aiho in A Certain Scientific Accelerator.
- Canon Foreigner: He's only present in the anime version of A Certain Scientific Accelerator. Takahashi later shows in the 12th volume of ACSA.