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- Big Damn Heroes: They show up in the end of the USJ Arc when Iida comes to find them and reveal that villains are attacking, their appearance is threatening enough for Shigaraki to cancel the attack on sight.
- Badass Teacher: All of them are or were professional heroes, so this is a given.
- Early-Bird Cameo: A lot of the faculty get this treatment in the USJ arc and Sports Festival arc because their characters have debuted in the manga by the time these arcs premiered, allowing the anime to showcase a much richer pool of UA professors and heroes.
Toshinori Yagi — All Might
"The people, the heroes, even the villains, I stand to set fire in their hearts."The highest ranked hero in the world and a pillar of hope and justice for heroes everywhere to follow. After an intense battle with a dangerous supervillain, he can only be his normal self for up to three hours a day. After he hits his time limit, he becomes a lanky, skeletal man who constantly coughs up blood. Only a select few staff at U.A. know this, and even fewer know the true nature of his Quirk. At the start of the manga, Midoriya proves himself to All Might and inherits "One For All".
- The Ace: All Might was a straight example of this and continues to be a unique one, even though having been severely injured gave him a time limit on his powers. Gran Torino deconstructs this, noting that he took to One For All much more easily than Midoriya did, which caused his teaching methods (which worked for him) to be less effective for his protege.
- Adorkable: He gives a bombastic entrance, and makes a grand announcement that Midoriya is in his vicinity, right before offering to eat lunch with his protege. It's to the point where Uraraka basically went Squee!, and noted how adorable it was.
- Affectionate Parody: Of classic superheroes.
- All-American Face: While he's Japanese, he's definitely a send up to this type of character. He's blonde with blue eyes (typical anime depiction of a western foreigner), massively buff when powered up, wears a costume with a red, white, and blue color scheme, and constantly goes on about justice. Hell, a lot of his Smashes are named for stuff in the US.
- Badass Teacher: Becomes a teacher at U.A.. He will also give a beating to anyone who tries to make his students suffer.
- Beware the Nice Ones: Is almost always smiling and is the type to always lend a helping hand to anyone in need. The key word is almost. If you somehow manage to get him to stop smiling, you know you're in for it.
- Big Good: A pillar of hope and justice for the world, with many aspiring to follow his example. Fittingly enough, he's thus the only one who matches the Big Bad in terms of power.
- Black Eyes of Crazy: Averted, of course, since he's not remotely evil; but in his civilian form, his eyes are black with tiny, brightly glowing blue irises. It's an off comparison to his heroic form's Hidden Eyes.
- Blood from the Mouth: Happens to him frequently in his weakened form.
- Body Horror: His weakened form is extremely emaciated, constantly vomiting blood, and horribly scarred just near the ribs. Parts of his organs, in fact, seem to be gone.
- Brains and Brawn: When he was paired up with Sir Nighteye, he was the brawn of the duo.
- Broke the Rating Scale: All his official stats are 6/5. Yes, all of them. Appropriate for The Ace who is effectively this world's equivalent of Superman.
- Brought Down to Normal: Since giving Midoriya One For All, he finds that he's slowly losing his power over time, and it will eventually stop working completely. This finally happens at the end of chapter 94 after using the last vestiges of One For All to finally KO All For One.
- Calling Your Attacks: In reference to how he's based off of silver-age western superheroes, he shouts out the names of American states and landmarks. He doesn't always get it completely right, though.
- The Cape: Definitely. Almost to the point of parody.
- Catch-Phrase: "I'm here!/I have arrived!" while making a Dynamic Entry and "Plus Ultra!" when trying to be inspiring or when showing off.
- The Chooser of The One: He chooses Midoriya to become his successor.
- Chronic Hero Syndrome: Played partly for laughs, but prior to the U.A. villain invasion, All Might stepped in to defuse a tense hostage situation, then moved on to stop a hit and run driver, and then... well, his commute to work ended up taking up all of the time he had that day for the use of his powers.
- Comes up again in the Illegals Prequel. Naomasa actually learned All Might's Secret Identity because he kept rushing off to save people while they were having coffee.
- Death Glare: He gives off an incredibly potent one, whether it be against villains who threaten his students, or even when he is acting out the part of a villain in Class-A's exercise against Bakugo and Izuku. When you see that glare, you can try to run, but you probably won't get very far.
- Determinator: "A real hero...will always find a way for justice to be served!"
- Deuteragonist: While the series as a whole is a Coming of Age story for Deku, All Might's influence and character arc drives the story just as much as Deku's journey.
- Dynamic Entry: Does this quite a bit, in contrast to his true from which staggers around beneath notice. It's to the point that "I am here!" is his catchphrase.
- Eagleland: Predominantly because of his The Silver Age of Comic Books traits, he tends to exhibit signs of the first type. For example his workout plan for Midoriya invokes the classical American Dream in its name... and the notion that those born with nothing, can one day achieve the greatest success if they work hard to earn it. Additionally, as mentioned, most of his attacks Theme Naming for states or major U.S. cities, typically "X Smash".
- Engrish: In the anime, he peppers his sentences with English words and phrases with varying degrees of success.
- Expy: Of Golden Age and Silver Age Flying Bricks. His ethos is almost straight-up Superman, the nature of his Quirk and backstory are rather more Captain Marvel, and his appearance could perhaps best be described as "Miracleman with Hair Antennae."
- A Father to His Men: He technically has only one man, Midoriya, but their relationship is very akin of a father and son. All Might often treats and trains Midoriya in a manner similar to how a stern but loving father would do to his son, considering that Midoriya's real father never appeared in the whole series, and only mentioned once, All Might often borders Parental Substitute.
- Game-Breaking Injury: All Might suffers from this as five years before the main story, he took a devastating hit from an unknown villain, which nearly killed him. While he survived thanks to numerous surgeries, his powers were disrupted such that he can only use them three hours a day. When he powers down, he looks like a emaciated husk of his former self that constantly keeps coughing up blood. Regardless, he keeps up his hero duties, with only Midoriya and a few of the top officials knowing about what happened, as he doesn't wish for people to lose faith in heroes like him.
- Gentle Giant: All Might is always ready and willing to give a reassuring hug and his broad shoulders to cry on to anyone who is in sadness and despair.
- Gratuitous English: Frequently as part of his Large Ham tendencies.All Might: [in the Japanese dub] Oh my... oh my... GOODNESS!
- Hair of Gold, Heart of Gold: What All Might's true form used to look like. That is, before sustaining his near-crippling injuries from All For One.
- Heroic Build: His muscle form, obviously.
- Heroic B.S.O.D.: When All For One reveals that Tomura Shigaraki (a criminal that he's been pursuing) is actually the grandchild of his beloved mentor, Nana Shimura, All Might is horrified and filled with guilt. It takes a plea for help from a nearby civilian to snap him out of it.
- Heroic Second Wind: Over his time limit and severely injured, All Might is spurred into action again by the civilian he needs to save and the people looking on.
- Hidden Eyes: In his heroic form, they gave him this as an aesthetic choice. Rather than the usual implications of this trope, it's to make him look more dramatic, rather than emotional or scary.
- Hope Bringer: Everyone feels better at the very sight of his presence in the field, as his status as the Symbol of Peace has reassured everyone of their safety from the moment he arrives.All Might: Never fear! For I am here!
- Hour of Power: Thanks to his injury, he can only tap into his full strength for a few hours a day. After giving Midoriya his One For All, this time gradually grows even shorter. All For One explains that this is because All Might is now exclusively using the remnants of One For All as opposed to the full power he once had before and the more he uses it the weaker his power becomes. At end of his fight with All For One in chapter 94, All Might has now permanently used up the last remaining dregs of One For All.
- Ideal Hero: Powerful yet kind-hearted, All Might continues to strive as an example of selflessness, decency, and justice in spite of his gradually declining powers.
- I Work Alone: Subverted. Sir Nighteye's insistence in becoming his sidekick eventually led All Might to accept his help.
- Large Ham: If his bold outline and loud personality didn't make it obvious, he is constantly spouting speeches about heroism and how it's important for him to be a symbol of peace.
- Leeroy Jenkins: Gran Torino calls him as the "punch first, ask later" type.
- Lightning Bruiser: Very few people can keep up with his sheer strength and speed. His only weakness is the time limit that his muscle form has.
- Meaningful Name: His surname contains the Kanji for "eight", referring to him being 8th wielder of One For All. It also has the character "tree/wood" in it, which likely refers to him being the pillar that currently upholds society as it is now.
- The Mentor: He tries to make Midoriya his successor and gives him his power. With U.A.'s help, All Might may find the true and worthy successor, but he hopes it will be Midoriya.
- Moment of Weakness: In the first chapter, he nearly abandoned Bakugou to a supervillain because he had reached his daily limit. Seeing the powerless Midoriya rush said villain in an attempt to save Bakugou convinced All Might to break his limit regardless of the risk to himself to save the day. This incident was what convinced All Might that it was time to pass on the torch and that Midoriya was a prime candidate for it.
- My Greatest Failure: Discussed in chapter 70, there has never been a situation in which he hasn't made the outcome better, when he was there. All Might is for all his speed and strength still only a man, he can't be everywhere and for every situation he made better there were hundreds he could do nothing for, simply because he wasn't there. This is where being The Paragon is a double-edged sword, for all that he inspires to make others like him, he is seen as The Hero of the world, so when he doesn't show up to save the day it can breed resentment.
- Nice Guy: All Might's kind heart is as big as his muscles, and as powerful as he is kind. To him, giving people kindness and hope is just as important, if not more so, than smacking villains into the ground.
- Non-Standard Character Design: To go with his Large Ham personality, he is drawn in a thicker outline and has more shading than everyone else. He specifically has character design elements associated with the comic book creator Rob Liefeld, including a variant of the "Youngblood's disease" as his eyes are often hidden in heavy shadow or appear to be glowing. Ironically this also means despite being most inspired by a comic book art style it means he looks a more like a villain or morally dubious individual than he is intended to. His "true form" is also very different from everyone else, but in a more conventionally cartoonish and lanky sort of way.
- A few students even acknowledge this when he enters class for the first time.
- Not So Different: Reveals to Midoriya that he used to be Quirkless himself before getting "One For All" and pretty much had the same drive he did when he was younger.
- Only Known by Their Nickname: Sort of. "All Might" is his hero name; but even in-universe nobody knows his real name, except for Gran Torino.
- O.O.C. Is Serious Business: When he arrives during the Villain Alliance's assault, All Might is not smiling. Even though he's in hero-mode, he isn't smiling. This is All Might we're talking about here; he is always smiling in hero-mode. That he isn't smiling makes it clear how he feels about the villains trying to get at him through his students.
- Papa Wolf: As the villains who attacked Class 1-A found out, trying to hurt his students is an easy way to get on All Might's bad side.
- The Paragon: All Might isn't the "Symbol of Peace" just because he's incredibly strong, but because he's devoted to inspiring the good in others. Many of the world's other heroes and heroes-in-training aspire to follow his example.
- Parental Substitute: His interactions with Deku is akin to a father-son relationship.
- Passing the Torch: How "One For All" works. It's a unique Quirk that is nurtured and passed down from generation to generation.
- Perpetual Smiler: In his powered up form, he nearly always has a giant grin on his face, though this is usually an act in order to reinforce the idea that he's an unassailable symbol of peace and justice. See also Stepford Smiler.
- Pre Ass Kicking One Liner: During his fight with Noumu:"So, you were made to fight me, big guy?! If you can really withstand me firing at 100% of my power...then I'll have to go beyond that and force you to surrender!"
- Primary-Color Champion: As seen above, his hero costume contains blue, red, yellow and white.
- Psychologist Teacher: Midoriya isn't the only student All Might tries to mentor after joining U.A.'s faculty as Bakugou and Todoroki also bring out his mentor side. He is also shown to be very encouraging to pretty much all his students.
- Rapid-Fire Fisticuffs: Beats Noumu by punching him 300 times.
- Red Baron: Known as "The Symbol of Peace".
- Recoil Boost: New Hampshire Smash.
- Renowned Selective Mentor: Passing One For All is done very selectively, considering its power. On top of that, All Might has very strict standards for taking on an apprentice. But of course, this is all done in secret with only a few in the know.
- Screw Destiny: When Sir Nighteye predicted his demise (and he had never predicted wrong), All Might quite literally said that he would just change his own fate.
- Secret Identity: Illegals reveals this is how he hid his weakened body from the public, spending his time as All Might's "Secretary Manager" under his real name.
- Showy Invincible Hero: What he is In-Universe. All Might is the strongest hero who is known for always winning his battles and saving everyone once he appears as the Symbol of Peace.
- Sink-or-Swim Mentor: If you think Aizawa is bad, All Might is even worse. Any poor soul paired up with him as their teacher/mentor for the day should expect a merciless beating. Doesn't matter if you're only in your first year, All Might will take you as seriously as he would a villain.
- Spin Attack: Oklahoma Smash.
- Stepford Smiler: Puts on a brave face in hero-mode to live up to his reputation as a symbol of justice, but is all too aware that he's a fallible human being and that the day is rapidly approaching when he can't be a hero anymore. Chapter 92 reveals that he does this on the encouragement of his mentor, who argued that the people he rescues have been through a lot of trauma, so he should smile so as to save their hearts as well as their lives.
- Super Strength: One For All. The strength boost also provides Super Speed and In a Single Bound.
- Superior Successor: As One For All is cumulative, he surpassed his predecessor in using it (like how Midoriya will eventually surpass him).
- Tragic Keepsake: "One For All" acts as this as it was entrusted to him by his now-deceased mentor and friend Nana Shimura.
- Up to Eleven: His fight with Nomu had Nomu able to match him blow for blow at 100% of his power, so he pushes himself beyond 100% and completely curbstomps Nomu.All Might: You may have heard these words before, but I'll teach you what they really mean! Go beyond! PLUS! ULTRA!!!
- Vague Age: How old is All Might? Mid-twenties, thirties, possibly approaching forty? The manga never makes it clear and the fact that he looks like a teenager in his weaker form only adds more fuel to the fire.
- What the Hell, Hero?:
- He gives one to Midoriya for going with some students to rescue Bakugo despite the risk of injury, even hitting him with a Texas Smash in his weakened form. Downplayed as All Might then turns the scolding into a So Proud of You speech promising to be a better teacher now that he no longer has One For All anymore.
- All Might himself often gets this about his teaching method toward Midoriya. Recovery girl and Aizawa have both chewed him out for Deku being way to reckless with a power he can't control and Grand Tarino outright says All Might is a terrible teacher.
- World's Best Warrior: The highest-ranked hero. Even though he has weakened a bit in the last years, he still managed to keep the top spot.
- Your Days Are Numbered: Nighteye urged him to retire because his Foresight saw All Might dying a gruesome death sometime. And while there's some nuance to Nighteye's Foresight, it's never wrong before; as of current, All Might has between 1 to 2 years to live. But he and Deku are trying to change that fate.
- Your Size May Vary: All Might's neck in his normal form ranges from normal, to noticeably long, to grotesquely long.
Shouta Aizawa — Eraserhead
- Voiced by: Junichi Suwabe (Japanese), Alex Organ (season 1), Christopher Wehkamp (season 2) (English)
"I'm sorry to tell you... that for the next three years... U.A. will run you through the wringer. That's "Plus Ultra". Use your strength to overcome it all. So bring it."Homeroom teacher of Class 1-A. Presented as a bit of a Lazy Bum, he's really the hero Eraserhead, whose Quirk, "Erasure", can erase other people's Quirks just by looking at them.
- Anti-Magic: How his Quirk, "Erasure", works on a basic level. By looking at someone, he can erase their quirk and prevent them from using it.
- Awesomeness by Analysis: As All Might notes, his observational skills are top-notch.
- Badass Teacher: Although his teaching methods can be rather questionable.
- Bunny-Ears Lawyer: Often teaches while still inside a sleeping bag. He is also willing to expel entire classes if he feels that they don't meet his very high standards. This is all overlooked thanks to U.A.'s own policy of academic freedom.
- Celebrity Is Overrated: Dislikes the attention of the media, believing that it gets in the way of his job as a hero. This results in him being very obscure to the general population.
- Childhood Friends: Aizawa and Present Mic have been friends since they were very young. An anime flashback shows that Mic is the one who named him Eraser Head.
- Cool Shades: Wears a pair when he goes in his Eraserhead persona, with the intent to keep his opponents from knowing who he's looking at. Particularly useful against a crowd.
- Combat Pragmatist: Since his Quirk only erases someone else's Quirk, Aizawa is completely fine using it at any time or way to win against his foes. Best shown in how, when fighting all the Villains who attacked during the USJ arc, he purposely would wait to use it to give him advantages.
- The Cowl: His general design is based on this trope, being an underground hero that avoids media attention and works as a Foil to All Might.
- Crippling Overspecialization: Due to how his Quirk works, he's a nightmare when fought one-on-one and his fighting style more or less revolves around the application of his Quirk to win his fights. However when fighting multiple opponents, his Quirk, while still strong, is much less effective since he has to maintain contact with them while also accounting for others who would be attacking. There's also the fact that his Quirk only works on Transformers and Emitters, so if any enemy uses a Mutation Quirk, he'll be completely unable to stop their attack.
- Cruel to Be Kind: His way of teaching, it is better to be mean and unfair to the students to help prepare them for the future of dealing with natural disasters and villains. He is more than willing to destroy a student's dream of being a hero if he finds they have no potential, but only because it would be wrong to give them false hope for the future or worse for them to be let into real world with no hope of surviving.
- Determinator: Shows up in the USJ arc, even after pushing his quirk to the limit and taking a severe beating by Nomu, including having his head repeatedly slammed into concrete, he still manages to stare at Shigaraki, preventing him from using his quirk to kill Tsuyu.
- Disappointed in You: To the whole class 1-A after the Hideout Raid: Out of the 20 students in the class, 5 of them decided to break all possible rules and save Bakugou by themselves, while other 12 students knew, nobody said a thing or stopped them. He said that he was more than willing to throw away all of them, but will not due to the circumstances and says it will take a long time until he is able to trust them again.
- He gives an even harsher verbal tongue-lashing to Midoriya and Bakugou when they get in an unsanctioned brawl. Aizawa still hasn't let Izuku off the hook for this incident and warns him that his maverick tendencies will be punished formally if he does something like this again. As for Bakugou, falling behind the rest of the class with extracurricular hero training is punishment enough.
- The Eeyore: He's a massive buzzkill who dresses in shambles and constantly likes to remind everyone that life sucks. It's so bad that when high-energy Present Mic pops in to teach his soul-sucked class, there's no hope in trying to bring them back to life after he's reduced them to practically zombies. On his worst days, he even whips out a sleeping bag and curls up in a cocoon, too unmotivated to even teach.
- Foil: To All Might. All Might is the highest ranking hero in the world and uses his fame to inspire others while Eraserhead has a slovenly appearance and shuns the spotlight. All Might in his prime has incredible strength and stamina where Eraserhead has great skill, but prefers to strike quickly and with the element of surprise as he lacks the endurance for long, protracted battles. Lastly, All Might's power empowers him with the strength of many men, and his personality is to build up those who have the desire to do good. Eraserhead's Quirk robs others of their powers, and his personality is to tear down those who he feels show no potential.
- Heroic R.R.O.D.: The more he uses his power, the longer it takes for it to kick in again when he blinks. This creates brief windows where his opponents can use their Quirks.
- Hypocritical Humor: He tends to tell people to cheer up after he's eviscerated their jovial moods. And if other people are already mopey without his doing when he enters a room, he thinks they need to stop moping.
- I Lied: Proclaims that the one who ranks last in his exercises on the first day will be kicked out of the school. Then he says he was lying just to get more effort out of them. All Might calls him out on this, pointing out that in a previous year, he had expelled his entire class. Aizawa admits that he would have followed through if the one ranking last showed zero potential to be a hero. Since the one who did rank last, Midoriya, did show some potential in his eyes, he decided to pretend he had been lying.
- Jerk with a Heart of Gold: He may act like the stern, standoffish teacher, but it's shown that he actually cares about his students. During the simulated fight against Yaoyorozu and Todoroki, he allows Yaoyorozu to claim victory for the team instead of capitalizing on her mistake and defeating them, in order to allow Yaoyorozu to build up her destroyed confidence again. Also, he always prioritizes the safety of his students whenever villains enter the picture.
- Kindhearted Cat Lover: Illegals showed him with a shopping bag full of cat food and cat care books, implying he's fond of them.
- Lazy Bum: Introduced sleeping on a floor in front of his classroom in a sleeping bag. He also often teaches while in said sleeping bag.
- Logical Weakness:
- Aizawa must maintain eye contact for his Quirk to work. This means depriving him of sleep or forcing him to stare at a single person for an extended period of time will make his eyes tired and thus reduce the effectiveness of his Quirk. Another is that his Quirk works on Emitter and Transformation Quirks, but not Mutation as they mutate the physical body structure and thus is permanently active.
- Also his power is obviously useless against a well trained fighter who doesn't have or rely on a quirk. All he can do then is rely on his impressive martial arts skills and hope its enough.
- Magical Eye: It's by looking at someone that he can erase Quirks.
- Meaningful Name: His given name has a character that means "erase".
- Obfuscating Stupidity: Seems like an offbeat fellow but can get just as serious when the time comes.
- Odd Friendship: He and Mic are good friends despite their clashing personalities, they actually have been friends ever since they were classmates at UA.
- One-Man Army: Surrounded by villains with a few that can't be stopped by his eraser power. Doesn't stop him in the slightest as he reveals he excels at hand to hand even without his Quirk.
- Only Sane Man: Aizawa consistently tackles problems that are not glamorous enough to get the attention of the other faculty. He notices that the entrance exam discriminates unfairly against quirks that aren't battle-oriented, and strives to prepare his students for harsh realities that All Might and co. tend to gloss over.
- Papa Wolf: Much like with All Might, attacking his students is a good way to end up in the hospital. He was also angered by the crowd during the fight between Uraraka and Bakugou, telling those that booed Bakugou for supposedly bullying Uraraka that they shouldn't be heroes anymore, because not only did they not notice Bakugou was playing it safe, but because none of them had noticed Uraraka had been setting up a big attack.
- Power Nullifier: His Quirk allows him to erase other people's Quirks rendering them helpless. However it only works on Emitter or Transformation types. Mutant types (i.e: Quirks that have changed a person's body) are immune to it.
- Red Oni, Blue Oni: The cool-headed blue to Present Mic's hot-blooded red. Because of his personality, he winds up being the Blue Oni to most people he's with. Lampshaded by himself.Aizawa: Why am I always surrounded by these annoying types...
- Renowned Selective Mentor: All Might mentions that he once expelled an entire class of students that didn't meet his standards.
- Scarf of Asskicking: A multi-layered one around his neck which he uses to bind his opponents.
- Scars Are Forever: Of all the wounds he received during the battle at USJ, the one that has stuck around was a horizontal scar under his eye. Though he always wears long sleeves so we don't know what his arms look like after all that happened to them.
- Stern Teacher: At first he seems to be an Apathetic Teacher, but it eventually comes to light that he just has high standards and very low opinions on those who don't meet them.
- Weak, but Skilled: Since his Quirk doesn't boost his abilities in any way, Aizawa combines it with hand to hand combat. It makes him lethally effective since he is extremely smart on when to use it. Fittingly enough this contributes to his Foil nature with All Might. It also applies to his fighting style. He has to rely on his impressive speed and agility due to his slender build.
- Weaksauce Weakness: His Quirk would be even more useful if he didn't suffer from dry eye.
- Would Hit a Girl: He's not shy about attacking female villains.
Hizashi Yamada — Present Mic
"The great hero Napoleon Bonaparte once said... 'True heroism consists in being superior to the ills of life.' Plus Ultra!! Break a leg, everyone!!"A hero who doubles as a DJ. Usually plays the role of event announcer whenever one is required.His Quirk is "Voice", which allows him to heighten the loudness of his voice for offensive purposes.
- Anime Hair: His hair is some sort of reverse pompadour that is three times bigger than his own head. This is actually only part of his hero attire, a sketch of him with casual clothes shows his hair is usually down and he is pretty normal looking.
- Badass Teacher: Besides being a professional hero, he also teaches at U.A..
- Big "YES!": This is actually one of his attacks.
- Catchphrase: "Everybody Say Hey!"
- Cool Shades: Wears thos as part of his hero attire, but in normal clothes, he
- Gratuitous English: Sometimes spouts random sentences in English. Incidentally, he's also Class 1-A's English teacher.
- Large Ham Announcer: Of the entrance exams and the Sports Festival.
- Make Me Wanna Shout: He can amplify the loudness of his own voice.
- No Indoor Voice: His Quirk is all about being loudmouthed, and he's a career DJ who thrives on being loud and lively. Except it doesn't translate well to the teaching atmosphere when he's irreverently loud for the occasion.
- Odd Friendship/Childhood Friends: He and Aizawa are good friends despite their clashing personalities, they actually have been friends ever since they were classmates at UA.
- Red Oni, Blue Oni: The hot-blooded red to Eraserhead's cool-headed blue.
- Smarter Than You Look: Although he does not seem the brightest guy, he has a 5/5 Intelligence stat on the Official Character Book, which is above even Aizawa.
- Weaksauce Weakness: Bugs turn out to be a major weakness for him as he can't blow them away with his Quirk because sound can't travel underground, allowing burrowing bugs to sneak up on him.
- Why Did It Have to Be Snakes?: He's deathly afraid of bugs.
Chiyo Shuuzenji — Recovery Girl
"All right, this poor boy should be sorted now. Are there any more injured to take care of?"The resident nurse of the school. Her Quirk, "Recovery", speeds up the recovery of injuries of her patients.
- Healing Hands: Played with, as her power allows her to magnify someone's own regenerative process.
- Intimate Healing: Her Quirk manifests through smooches.
- Meaningful Name: Her name contains the characters for "discipline", "provide", "healing" and "virtuous". All of which can connect to her personality and quirk.
- The Medic: She's the school nurse with the power to heal. You have to expect she's this.
- Miniature Senior Citizens: One of the oldest members of the school and naturally short in stature.
- Screw This, I'm Out of Here!: Her reaction to Deku injuring his arms to near paralysis after battling Muscular even though he had to in order to survive. Recovery Girl cuts him a break on this injury, but from what the presiding physician noted, for his sake, she's not going to heal him if he incurs any more major injuries. She changes her mind later, but it's very clear that watching Izuku destroy his body again and again is breaking her heart.
- Secret Keeper: She is one of the few people who knows everything about All Might's Quirk. This is because she was one of the people who helped him through his long and troubled recovery after All For One brutally maimed him, and not even her power was enough to completely fix him back up, because some of his organs were outright gone and she can't recreate lost body parts- that's a totally different Quirk entirely.
- Team Mom: As the oldest character in UA, she seems to have a tendency of behaving very motherly both towards her patients and towards All Might sometimes, reprimanding his bad behavior in the manner of a mother talking to her child.
- What the Hell, Hero?:
- Delivers one to All Might when Midoriya's drive to meet his expectations results in three limbs so broken they can't be healed with her Quirk the normal way, requiring surgery.
- Does it again after the training session in which Deku and Bakugou are brutally beaten by All Might's overwhelming strength, saying that Deku's lower back was within a hair's breadth of snapping beyond all recovery.
Anakuro Hirooki — Thirteen
- Voiced by: Inuko Inuyama (Japanese), Morgan Berry (English)
"Your powers are not meant to inflict harm. I hope that you leave here today with the understanding that you're meant to help people."Nicknamed "Space Hero No. 13", they work as a teacher that overlooks the rescue exercises. A person in a space suit who is known for working with disaster relief. Their Quirk is "Black Hole".
- All-Loving Hero: There's a reason they're the guy teaching kids how to use their power for good - they outright believes ANY power can be used to save lives, and that saving lives is their natural use.
- Ambiguous Gender: Horikoshi stated to not know what is beneath their space suit, just that they are human.
- Ambiguously Human: It's unknown how they look under that space suit. When they nearly dies due to Kurogiri, the audience only sees the empty part of the suit and nothing more. Even Word of God wonders about it.
- Bad Powers, Good People: Through their quirk, they can create black holes that can disintegrate matter at the atomic level, easily capable of killing people if they're drawn close enough. However 13 is a All-Loving Hero who cares deeply for the students and uses their quirk exclusively for disaster relief and sometimes the capturing of villains. They also avoid combat because they note his Quirk is one that can easily kill if harnessed improperly.
- Dark Is Not Evil: A superhero teacher who has the ability to make black holes.
- Hoist by His Own Petard: Kurogiri used their Warp Gates to loop Thirteen into one of their own Black Holes, badly rending them apart. Thirteen survived, but they were laid up in the hospital for quite some time.
- Meaningful Name:
- Their name means "Black Hole" and "Middle Space" both referring to him being a Space hero and his quirk.
- Their hero name, 13 is a reference to the Apollo 13 mission, which popularized the phrase "Houston, we have a problem".
- Powered Armor: Their spacesuit is designed to keep their black holes under control - for example, their fingers have little caps they can flip up and use the gravity of the black holes they produce inside to vacuum-clean debris and pull things toward them slowly.
- Power of the Void: Uses their black holes for clean up during rescue missions, but mentions that they have to keep control over it so that it doesn't kill the people they're trying to rescue. This is because their black holes pretty much disintegrate everything it sucks to a molecular level.
- Unrealistic Black Hole: Their Quirk can essentially be described as black hole fingers.
- Unskilled, but Strong: Kurogiri pretty much says this; being that No. 13's Quirk is very dangerous, but they themself has no experience fighting villains, to his detriment.
Ken Ishiyama — Cementoss
- Voiced by: Kenta Okuma (Japanese), Chris Rager (English)
"Listen. When it comes to fighting... It's all about making use of your particular strengths.A being who can control any form of cement through his Quirk, "Cement".
- Ambiguously Human: There's a reason he's described as a "being".
- Badass Teacher: He's also the Modern Literature teacher.
- Barrier Warrior: A more blunt example than most. Sometimes, Cementoss has to throw up giant cement walls for protection. He uses this as an emergency resort when he's overseeing the most dangerous clashes of the UA Sports Festival to limit the collateral damage, or else innocent bystanders would get hurt and the school would have a big disaster on its hands in both terms of public opinion and visage. And the press would surely have a field day with that.
- Dishing Out Dirt: Anything with concrete he can control.
- Home Field Advantage: Very powerful in urban settings thanks to the abundance of concrete.
- Irony: Despite being blocky, official material states that he likes round things.
- Logical Weakness: Doesn't fare well in areas that have no concrete for him to manipulate, such as forests and such.
- Meaningful Name: His name means "stiff, firm", like cement, referencing to his quirk.
- The Knights Who Say "Squee!": He is a Hero and a big fan of All Might.
- Secret Keeper: In the know about All Might's condition.
Nemuri Kayama — Midnight
"With so much time left, I thought I'd park myself at the gate... but, well, taking that approach is just no fun at all... Because watching you run and shriek like a baby... makes the sadist in me ache for a chance to play."A heroine who has an S&M theme. She refs the the Sports Festival. Her Quirk is "Sleep Gas", which allows her to release a sleep-inducing fragrance from her body.
- Badass Teacher: She teaches Modern Hero Art History (Which entails aesthetic features of Superhero work, such as hero names, and costume designs), and can easily incapacitate enemies with her quirk.
- Barbie Doll Anatomy: Invoked Trope, she wears tights all over her body as a form of censorship, which is more obvious in the anime, where they are white instead of skin color.
- Bond Villain Stupidity: Had she stayed at the escape gate, she could've run down the clock and failed Sero and Mineta from the exam. However, her sadistic nature led to pursuing Mineta, only to get pinned down by his Quirk far away from the gate.
- Chained by Fashion: Has two handcuffs on her wrists.
- Christmas Cake: In an omake, Mount Lady accuses her of being this by making a catty comment about her age (which is 31).
- Cool Teacher: Midnight tends to be very supportive of the students, as demonstrated with Class 1-A's naming assignments. Each student's name she praises, the only exceptions being Bakugou's and Ashido's.
- Hidden Depths: Illegals reveals that she wanted to become a teacher to help the youth, since she believes many criminals and villains are born of teenagers who couldn't let it all out while they were young. She also implies she like acting as a counselor.
- Hot-Blooded: She loves the passionate youth, readily agreeing to bend the rules of the Sports Festival when things are done out of passion, such as letting Iida use Mei's inventions or letting Ojiro and Shoda drop out of the combat portionwhen they feel their pride won't let them compete without properly earning the spots. She fangirls over the manly Defeat Means Friendship that happened during Kirishima and Tetsutetsu's fight and gets quickly pumped up whenever it seems that a fight is getting at its peak.
- Hot Teacher: The 18+ hero has earned its name and reputation as a sexy heroine and is a teacher at UA. In Illegals, she more of the traditional pedagogical hottie, as she dresses in secretarial clothes.
- Knockout Gas: Her Quirk. It releases this from her skin, which is why so much of it is covered.
- Meaningful Name: Her real name is pun on sleep. Her hero name actually has two different meanings, referring to midnight as in bedtime, and midnight as in her after-dark nature as a hero catering to a more adult crowd.
- Ms. Fanservice: Rivals Mount Lady in this department.
- Sadist: Watching someone runs away in terror, it gets her heart throbbing.
- Shameless Fanservice Girl: Just in case the outfit and S&M theme didn't give it away. And she doesn't see any problem whatsoever with refereeing the freshman class's events in costume, either. And in the above-mentioned omake, it's heavily implied that her costume used to actually leave her breasts exposed instead of being covered by super-sheer tights, and she only changed it when she was forced to by legislation to regulate how much hero costumes can expose. Some UA students even wonder what she's doing when she's explicitly been billed as an "over-18 hero" not suitable for children- except resident pervert Mineta, who protests at the very idea the students disapprove of her. Granted, her Profile shows her civilian clothing is much more conservative then her hero outfit, so it could just be part of her Hero Persona.
- Stripperific: Her Hero outfit Invokes this. In order to use her quirk, she has to have her skin exposed. This would mean that exposing as much skin as possible is necessary for her to be effective.
- Weak, but Skilled: While her Power is a 2/5 as stated by the Character Book, she more than makes up for it with an outstanding 5/5 in Technique. Her Quirk is not good for attacking, but it is strategically invaluable.
- Whip It Good: As expected of a S&M-themed hero.
A sharp-shooting hero, has the quirk Homing, which allows him to control the trajectory of his bullets.
- Big Damn Heroes: Annouces the presence of the arriving pro heroes to the invading villains of the training grounds by hitting a good number of them with his aiming skills. He even nearly severely wounds Shigaraki before Black Mist warps him out of there.
- Brought to You by the Letter "S": His hat has a big "S" on it, referring to his name.
- Cool Mask: Wears a stylish gas mask.
- Early Installment Weirdness: In the original one-shot for My Hero Academia, Snipe was the second persona of a man who used to be a famous hero named Positive who became jaded after a while and dropped out of the spotlight.
- The Gunslinger: His Weapon of Choice is a gun, fitting his cowboy theme.
- Hand Cannon: Wields an oversized, double-cylindered pistol.
- Improbable Aiming Skills: Justified by his Quirk, Homing, which allows him to alter the trajectory of his bullets, but he is still doing so while they're nothing more than a spec in his field of vision or while they're behind obstacles in such away that he barely has any sight on his targets at all.
- Superhero Packing Heat: As expected of a hero sharpshooter.
- Too Many Belts: Wears at least 3 or 4 of them under his poncho.
"Less than ten minutes remaining... can you keep this up? I'm looking for... heroes who rise up and break through in the face of adversity."A hero with a ghostly theme. His Quirk, "Clones", allows him to create copies of himself out of ectoplasm coming out of his mouth.
- Attack of the 50-Foot Whatever: He can create a huge copy of himself.
- Badass Longcoat: He wears a heavy trenchcoat in costume and lets the collar stick up like the mantle of a cape. This is not to be confused with a Coat Cape where someone drapes their coat on their shoulders, because Ectoplasm wears his over his entire body.
- Dark Is Not Evil: Very creepy-looking, but he's a hero and a teacher.
- Expy: Of Spawn, particularly of his later redesign which included similar teeth to Ectoplasm's and their Mystical High Collar (though Spawn's is part of his red cape while Ectoplasm's is white), who is a genuinely undead '90s Anti-Hero.
- Handicapped Badass: He lost his leg in a past battle against a villain, and now uses two prostheses: a normal one for everyday civilian life and a lightweight one for heroism.
- Me's a Crowd: His Quirk. He's limited to creating around 30 clones of himself at once. He can also create a big copy, but at the expense of not being able to create more clones while the big one is active.
- Mystical High Collar: The lapels of his coat are very flared and upturned, and his powers stem from what is deemed ectoplasm, which is usually seen as the supernatural slime of ghosts.
- Nightmare Face: He looks scary even without his mask.
- Our Ghosts are Different: If you can even call ectoplasmic copies that are belched out by a superhero "ghosts" to begin with.
- Shout-Out: His helmet is extremely similar to the one wore by one of the members of the band Daft Punk, he is even stated to like karaoke as well.
- Soul Power: Can manipulate ectoplasm to form clones of himself.
Higari Maijima — Power Loader
"If you keep making a mess of things, I'm going to ban you from here."A Hero Support teacher and pro hero who wears an animalistic suit of mechanized gear.
- Cloudcuckoolander's Minder: He attempts to play this to the ever energetic Hatsume, however, she spends a good amount of time not paying attention to him or even outright ignoring his warnings.
- Gadgeteer Genius: He is the resident tech teacher, able to help in designing and upgrading hero costumes and gear. He is also Mei Hatsume's teacher.
- Powered Armor: He wears a suit of armor.
- Slasher Smile: It seems to be his default expression.
- Walking Shirtless Scene: He doesn't wear anything covering his torso.
Kan Sekijirou — Blood King
"Class A stole the spotlight every time in the first semester, so the second semester's gonna be Class B's time to shine. Got that? Not Class A. Us!"The Homeroom teacher of Class 1-B. His Quirk is "Blood Manipulation".
- Bad Powers, Good People: Manipulating and weaponize blood is hardly heroic, but he is still a pro hero and a teacher.
- Bilingual Bonus: His name, Kan, means blood, but in Turkish.
- Bloody Murder: He can weaponize blood.
- Dark Is Not Evil: He is mostly clad in red and black colors, even his eyes are red and he seems to have a permanent scowl, but he is a hero nonetheless.
- Heroes Love Dogs: It's mentioned in his profile that he has a dog at home.
- Heroic Build: A big, strong-looking guy.
- Meaningful Name: Kan is turkish for blood. His name also contains the kanji to "vessel", "red" and "love", mostly referring to his powers of manipulating blood.
- Our Vampires Are Different: He has fangs like a vampire and a blood motif, but none of the other classic vampiric traits.
- Perpetual Frowner: Constantly harbors a scowl on his face and seems displeased or angry all the time, even his resting face on a press conference is just a slightly less threatening scowl.
- Sitcom Arch-Nemesis: With Aizawa. While Aizawa hardly minds him, he is constantly competing with him to make his class stand more than 1-A, who has the attention of both the school and the media.
The School Life Supervisor.
- The Unintelligible: Starts barking and growling when he's worked up. Since he's introduced immediately after Bakugo and Izuku's fight, he's so mad that he can barely get more than three actual words out.
Principal — Nedzu
"We're starting to feel the effects of "losing our symbol" more and more as time passes...what we need now is a revival. At least for the students...we need to present them with prospects of a brighter future."The principal of U.A. Academy. His appearance resembles some sort of furry animal. His character sheet reveals that his real name is Nedzu (a play on the word for "rat" in Japanese) and that he is an extremely rare case of a Quirk appearing in an animal.His Quirk is "High Specs", which grants him Super Intelligence.
- Animal Superheroes: Naturally. Being a Superhero is one of the requirements for one to become a teacher at U.A.
- Broke the Rating Scale: Not quite as much as All Might, but his Intelligence at least breaks the official rating scale at 6/5. Appropriate, since Super Intelligence is his power.
- Being Tortured Makes You Evil: Mostly averted, as he chose to use his intelligence for heroic ends despite the experiments that were performed on him, but that doesn't mean that he won't enjoy the occasional opportunity to make humans squirm.
- Cartoon Creature: Lampshaded in his very introduction. He is supposedly a mouse, but that wouldn't explain his size.
- Character Filibuster: All Might lampshades it best.All Might: With the principal, if I let him go on it'll never end...
- Everyone Calls Him "Barkeep": Actually has a real name, but has so far only been referred to as the school's principal.
- Evil Laugh: When showing his "darker" side.
- Fully Dressed Cartoon Animal: He's some kind of animal, but wears clothes just like humans.
- Intellectual Animal: Thanks to his Quirk, he's actually smarter than any human.
- Large and in Charge:Inverted. He is the smallest teacher in U.A and its principal.
- Meaningful Name: "Nedzu" is a pun on the Japanese word for "rat", "nezumi". That said, whether it's really a Meaningful Name or a Non-Indicative Name depends on whether Nedzu is a rodent or some other animal. At any rate, it reflects his past as a lab rat, be it literal or figurative.
- Petting Zoo People: Actually an animal who was morphed to have a anthropomorphic body by his Quirk.
- Reasonable Authority Figure: So far, he appears to be a nice, smart and trustworthy person, enough to be one of the few people that knows about the true nature of All Might's "One For All".
- Rodents of Unusual Size: Part of the reason he gives off Viewer Species Confusion is that he is too big to be a mouse.
- Rugged Scar: Has one on his right eye. It's almost undeniable that he got it from the many abuses inflicted on him through experimentation.
- Shoulder Teammate: He is occasionally seen sitting on his colleagues' shoulders.
- Super Intelligence: His Quirk, and its not that he is an animal with human level intelligence, his Quirk has made him the smartest person on the planet.
- They Would Cut You Up: As an animal with a Quirk, he was experimented on when he was first discovered.
- Viewer Species Confusion: His species is indeterminate. As he himself says, he might be a mouse or a dog or a bear.