Above the Influence: Despite the persistent efforts of The Children (and Kyosuke, and Fujiko, and the entire free world...).
Action Survivor: While he can put up some fight, he's not nearly as powerful as the espers are, and usually has to rely on them to fight other espers.
Awesome by Analysis: Due to his intellect, he can usually figure out some of the things going on simply based on the evidence he sees.
Badass Normal: subverted in the pilot chapter where he's (although completely oblivious of it) a level 7 anti anti ESP-er link... which still makes him a normal guy... but in the serialized manga (and anime) he is just a Normal.
Celibate Hero: Minamoto's life revolves around keeping The Children safe and happy. On the rare occassions when does manage a date he's completely clueless.
Chick Magnet: Many of the females in the series are drawn to him. Some comment on his good looks, while others like him because he's a Nice Guy. He's not Oblivious to Love either, he's mostly Above the Influence regarding the Children, and for the others he just simply doesn't have time to date due to his workload with BABEL and the girls.
Minored In Ass Kicking: When he's not fighting someone way over his league, such as a high level esper, he can put up a decent fight.
Morality Chain: Initially. Later on in the series The Children become mature enough to make their own decisions.
Mr. Fanservice: Photographs of Minamoto in his unmentionables are popular among BABEL's female staff.
Nice Guy: Aside from him disciplining the girls for rude behavior, he is generally this.
Only Sane Employee: He's one of the only ones who generally doesn't go overboard with his actions. The BABEL chief, in contrast, tends to overreact towards the girls and anything they do.
Ooc Is Serious Business: No matter how strong, influential or cute you are. No matter even if you are his employer. Make Minamoto snap and you will surely regret it.
As an example, when Fujiko tries to ask him about his old girlfriend from college, he tries to skirt the issue. When Sakaki tries to answer it for them, he knocks his friend out, and later when pressed on it, he gets rather angry, and everyone, even high level espers like Kaoru, were quite scared of him.
Otaku: a very high functioning one. The man squees like a six year old when he goes to a space museum.
Papa Wolf: He tends to get rather protective of the girls anytime they're ordered to do something he deems a bit out of their league, such as having Shiho help the police with unsolved cases by having her touch items recovered from the crime scene, such as a kitchen knife. And especially anytime Hyobu approaches them.
Parental Substitute: He is a full time parental figure and role model to at least five very powerful ESPers.
Poor Communication Kills: Chooses not to share the full details of the prophecy where he kills Kaoru. Hard to blame him, but it still leads to lots of misunderstandings and hilarity.
Screw Destiny: Minamoto actively tries to avert a prediction made where he has to kill Kaoru in the future.
Freudian Excuse: Averted. Despite some horrific treatment at Suma's hands, a prejudice, as well as a childhood of being feared by her family, Kaoru is a kind hearted person. Even as a villain, her stated goal is protecting ESPers rather than hatred of the human race. Still, it's lucky she met Minamoto when she did.
Broken Bird: Shiho mentions in one of her arcs that she learned very early on what kind of a world she lives in. Later, for laughs, she frequently Lampshades that she's a "dark" character.
Clingy Jealous Girl: She has shades of this towards Minamoto, and like Kaoru and Aoi, will go to great lengths to find out why he's not paying enough attention to them. Even if it's a mission related task, such as schmoozing with Sakaki to see if the latter was really a spy.
Yandere: Played for Laughs, she has this look from time to time, such as when Muscle Okama tried to hit on Minamoto. She threatened to shoot him in the groin.
The leader of BABEL in terms of most day to day matters.
Badass Normal: While mostly portrayed for comedy relief, he can be surprisingly competent when things get serious.
Charles Atlas Super Power: In the OVA, he falls for a trap when he opens a door. A guillotine comes down and seems to hit Taizo, only for him to get up and say that a normal person would have died. A camera shot from behind reveals it sliced off the back of his clothing.
Hyper Competent Sidekick: She gets a lot of things done around BABEL when Taizo is goofing off or doing things he really shouldn't be, such as spying on the girls while on a date with a boy. She even gets the Japanese government off of BABEL's back when they question why they're spending so much money on the organization. Due to her sincerity and hospitality, they all agree that it's a necessary function and allow more funding for them.
Mission Control: She often performs this role for Minamoto and the girls, providing them with intel for their mission.
BABEL's chief physician and Minamoto's close friend.
Because You Were Nice to Me: He's a little jealous that the Children have Minamoto as a mentor. Growing up, he didn't have anyone like that, and like all espers, he was ostracized too, so often hung out by himself. However, once he meets Minamoto, and sees a human that genuinely wants to befriend espers, he starts to become more likable.
Big Brother Mentor: Attempts to be this to Tim Toy and Bullet. He will also occasionally watch over the girls if Minamoto is unable to for whatever reason.
Digging to China:He can use his psychometry through the Earth to reach Brazil, which is not impossible considering where he was at the moment.
Green-Eyed Monster: Just a subtle one, but he mentions to Shiho that he's a little jealous that she got to meet someone like Minamoto who goes through a lot of trouble to protect her, Aoi, and Kaoru. By comparison, he had no one like that to rely on growing up, so grew kind of jaded and bitter. Until he punched Minamoto at college and saw someone who looked like he cared about espers despite being a normal person.
Healing Hands: His psychometry greatly enhances his abilities as a doctor.
Inconvenient Hippocratic Oath: In episode 32, after meeting his old college professor at a secret fishing spot, the latter taunts him for being a bad student. He then suffers a stroke, and while Shiho says he got what he deserved, Sakaki mentions that he still has to do what he can to help save the old man's life. In the end he seems to have done so, and also grown a little closer to Shiho, who up to that point was largely confrontational to him.
Wild Child: She eats animals raw due to her canine nature
An Esper brainwashed by Black Phantom
Bad Future: It looks like he's in for this. In a recent chapter, Feather shows Minamoto a vision of the future. In said vision, Bullet dies (or at least is critically wounded) after getting in the way of a trap set up for Aoi.
OOC Is Serious Business: She's usually laid back, but if she puts on a serious face, watch out, as Hyobu found out first hand. While she claims she's not as powerful as he is, she still dished out a Curb-Stomp Battle to him, and he was only saved because PANDRA members came to bail him out.
Reasonable Authority Figure: While she may not look like it, she allows her subordinates quite a bit of freedom to perform tasks and missions however they see fit. She also provides them with help from time to time, although upon first impression it may not look like it, such as when she was trying to train Minamoto to grow closer to the girls.
A group of rogue Espers dedicated to securing ESPer supremacy, often through violent means.
Abusive Parent: Minor case. His father shouted at him and forced to repress his powers, and may have even beaten him for using them.
A Father to His Men: Kyosuke has genuine, no-strings-attached feelings of affection and responsibility for his followers, up to taking over a country just to let the kids go to school.
Affably Evil: Very. He does have serious moments where he acts like a genuine bad guy, but most other times he just does petty things, such as trying to beat Momotaro at a video game, and losing.
All Your Powers Combined: His extra powers were gained from his old comrades, and were passed on to him if he personally watched them die.
Amnesiac Dissonance: When reverted into a child, he is nicer, and due to Minamoto, it bleeds over when he comes back.
Anti-Villain: Kaoru sees him as such, though Kyosuke is always zigzagging across the Moral Event Horizon. Regardless, his intentions are at least understandable, and he is providing a home and support network for the espers that BABEL isn't able to find or help.
Authority Equals Asskicking: He is quite dangerous even though he does get beat from time to time. But that's usually because he wants to give them a Hope Spot before showing a trump card that then takes out whoever he's fighting.
Evil Cannot Comprehend Good: He feels a war between espers and normals is inevitable, and constantly works in subtle way to try and speed things up. However, Fujiko and Minamoto both refuse to believe that, and feel that espers and normals can get along, hence BABEL's existence and why they're trying so hard to ensure the girls grow up with a somewhat healthy and normal childhood. As a result, they often end up at odds with each other.
Freudian Excuse: The reason he's so distrusting of normals, Minamoto in particular, is because his commander when working in the Japanese military had come off as a very reasonable kind man who wanted nothing more than coexistence between espers and normals, but then tried to murder Hyoubu and made it clear that his ideal world was one in which humans control espers. Because of him, Hyoubu has trouble bringing himself to trust normals who work towards coexistence between espers and normals.
Morality Chain: Kaoru is this to him. He will often stop what he's doing to help her out, or provide a clue on what to do about the current crisis, and in some cases will do dirty work behind the scenes to prevent Kaoru from having to get her hands dirty, such as killing an esper controlled by Black Phantom.
Not So Above It All: He may be a criminal mastermind, but he still tries to show up Minamoto from time to time, such as making a boxed lunch for Mio after she reminisced about Minamoto's cooking, or trying to beat Momotaro at a video game, losing badly, and still insisting on playing more. He also finds it hilarious when Minamoto is taken control of by some flies, and try to make him do silly things such as drink from a toilet.
The Only One Allowed to Defeat You: He takes this stance at times when helping out BABEL/Minamoto. While he would love to see them fail, he also realizes that upsetting Kaoru would work against his goal of trying to make her the esper queen.
Psychopathic Manchild — In Volume 6, he does avenge a young girl who is severely wounded in a suicide bombing - but only because the bomber ruined the good mood brought on by the flowers she sold himand because she looks astonishingly like Kaoru. Later, he says to the leader of the terrorist group (before he blows up the plane they're on):
Kyousuke: I go anywhere my interest leads me. I do anything I want to. I kill anyone I don't like. That is all.
Reality Warper: Between his highly-refined telekinesis and hypnosis, Kyosuke can do just about anything.
Supreme Chef: While this doesn't crop up often, Mio did comment that his boxed lunch was delicious. One of his henchmen notes that he's being immature because he made said lunch solely because Mio was reminiscing about Minamoto's cooking a while back, and wanted to show him up.
Well-Intentioned Extremist: While PANDRA's main goal seems to be making sure that espers win the war between normals and espers, should it ever come, but it's implied that he'd be perfectly fine with a world in which humans and espers can coexist peacefully. The problem is he doesn't think that it's possible. Also, PANDRA's actions rarely ever directly harm civilians, espers and normals alike.
A young level 6 teleporter in PANDRA. Mio spends a great deal of time trying to gain Kaoru's affection without admitting that she wants to be friends.
Affably Evil: While her introduction was rather violent, kidnapping Minamoto to force Kaoru into a showdown, she is a rather incompetent villain. Even when he was kidnapped, Minamoto ends up cooking some decent food for her after noticing she just ate instant noodles. He even cleans her clothes for her after recommending she take a much needed bath as well.
And Your Little Dog Too: Frequently makes threats against against Kaoru before she admits that she really wants Karou's friendship.
Teleporters and Transporters: Her teleportation allows her to teleport only a part instead of the whole like the others. The parts are still connected and if they are too far apart or too far away from Mio, they will reattach on one side.
Punch Clock Villain: Magi treats PANDRA like it's a job: objectives are set, paperwork is organized and you put in overtime to get the big projects done on time. All this makes him more dangerous than the rank and file who treat PANDRA like a hobby or a game.
Ship Tease: With Momiji, who decides very early on that he's marriage material. More so when the only time we see Magi lose his cool is when she gets hurt.
Team Dad: The one who gets stuck trying to establish rules and discipline. Also had to raise at least three ESPers. He's more detached and stern than Minamoto, but given that he works for Kyosuke that's something of a necessity.
In the anime he wonders if this is becoming a Running Gag after he's received one too many of these attacks.
Hard Gay: As if his signature attacks from the groin weren't already enough of a clue, he also actively hits on Minamoto as well.
He Cleans Up Nicely: Gender-inverted example. In the last episode, he shows in one scene looking and acting like a completely normal person, to the point that several of the PANDRA members are unable to recognize him. Then he changes into his usual outfit/demeanor, and they immediately recognize him.
Blessed with Suck: In episode 21 of the anime, he tells Hyobu he was constantly being ignored, such as being skipped over for attendance in class, which he exploits by taking pictures of Babel employees without their knowledge. He then says he has to practically punch someone in the face before they'll even notice him, which also comes back to bite him when Kaoru nearly walks over him while he's spying on Oboro Kashiwagi.
The Dog Bites Back: Being always mocked for his hobbies by Sakaki makes it that much easier for him to join PANDRA for good; he nearly murders Sakaki in the process.
In the anime, BABEL really had it coming when Kaoru blackmailed him into building an anatomically-correct Oboro doll for her, then just left him holding the bag when it was discovered, causing him to lose out on his chance to ask out the girl he really liked, Ranko Kaneko, who then subsequently goes on a date with Sakaki after she misinterpreted the accusations that he liked Kashiwagi.
Face-Heel Turn: While he was a spy for Hyobu in the first place, he never actively worked against BABEL until the Trauma Conga Line he suffers from them. He then tries to frame Sakaki as a spy, and after that fails, openly joins PANDRA.
Freudian Excuse: His coworkers' general disdain for his hobby gives him another reason to spy on them for PANDRA.
Start of Darkness: After suffering a humiliating Trauma Conga Line thanks largely to Kaoru in episode 21 of the anime, he vows revenge on all the people who humiliated him, and worse, ruined his chances of giving a Love Confession to Ranko Kaneko, a BABEL technician and girl he was really interested in.
A PANDRA ESPer who is another one of Kyosuke's primary assistants.
Anti-Villain: one of the more level headed PANDRA ESPers. Though, as with BABEL, that's not saying much.
No Name Given: He's always referred to as "Black Phantom", "Boss", "Father", etc.
Battle Butler: A notable aversion: despite the way he dresses and his loyalty to Black Phantom, he lacks Psychic Powers or other combat abilities.
Phantom Daughter/Yuri Kumoi/Mirage/Phantom
One of The Children's classmates. Actually Black Phantom's daughter, a Hypno user with a split personality. The Yuri personality knows nothing about Black Phantom and has no special abilities; Mirage, who considers herself the main personality, created her to fool Psychometers.
Power Trio: Mirage is the superego, Yuri is the ego, and Phantom is the id.
Split Personality Merge: currently, in the manga, Yûri's locked memories have awakened from the major's lockdown. As a result, all of her previous personnalities have merged under 'Yûri Kimoi' as the dominant one. She has since decided to erase her existence from the Children's memories to pursue a personnal vendetta against Black Phantom.
You Have Failed Me: Kills his clones for the slightest failure. Except it was an illusion, he considers them too expensive to do that to.
A mysterious, very powerful Esper whose mind can be transferred between bodies using raremetal quartz. She has amnesia, but has a vague idea that her goal is to "change the future". In love with Minamoto (even more so than everyone else). Originally implied to be Kaoru from the future, she's actually an amalgamation of the memories of all 3 children (and possibly others as well) from the future, with Kaoru as the nexus.
A level 2 esper who goes to the same school as Kaoru, Shiho, and Aoi does.
Break the Cutie: She accidentally outs the three girls as espers when they first go to school, which causes some problems for them. She also accidentally read Tono's thoughts about not caring if she was an esper, but when she accidentally reveals it and he finds out later, he gets rather mad at her.
A young boy who's attending the same school as the girls.
Butt Monkey: He's sometimes on the receiving end of the girl's anger, sometimes deserved, other times not so much, especially with Kaoru.
Fantastic Racism: He despises espers at first, and nearly gets into a fight with Kaoru over it. However, he seems to lose this trait as the series goes on.
Locked Out of the Loop: Like Chisato, he's unaware that they work for BABEL and are actually more powerful espers than they claim to be. It helps that the girls obey Minamoto's order to not use their powers at school, such as when Kaoru wanted to blast him to the other side of the classroom after provoking her into a fight.
Muggle: He is absolutely normal unlike some of the girls in his class.
Worthy Opponent: Views Kaoru as one after she manages to play him to a draw in a game of dodgeball.
She Is Not My Girlfriend: While it's strongly hinted that he does have feelings for Chisato and hangs out with her quite a bit, he will often deny this if it's brought up.