Bakugo

Katsuki is a young man of average height, with a slim, muscular build, and a fair skin tone. He has short, spiky, sandy blond hair with choppy bangs that hang over his eyebrows. His eyes are sharp and bright red in color.

At school, he wears the standard U.A. uniform without the customary red tie. Underneath his blazer, he wears a white collared shirt with the top few buttons undone. His pants are worn loosely, causing them to sag at his ankles, despite him wearing a belt with them. After the Paranormal Liberation War, Katsuki's school uniform is worn in a much neater fashion and includes the red tie he previously forgone.

His hero costume is composed of a tight, black, sleeveless tank top, with an orange "X" across the middle, forming a V-neck. There are two dots along the left line of his collar, indicating the support company that designed his costume.[4] His costume also has a metallic neck brace worn with rectangular ends that have three holes on each side. His sleeves reach from within his large grenade-like gauntlets to his biceps. His belt, which also carries grenades, holds up his baggy pants with knee guards, below which he sports black, knee-high combat boots with orange soles and eyelets. His mask is jagged and black, and as it goes around his eyes, a large, orange-rimmed flare shape protrudes from each side.

In the winter months, he wears a large jacket with a high collar, rather than the usual tank top, although it does have the same orange "X" design, so he can still sweat a sufficient amount, which is how his Quirk works.

Katsuki is a crude, arrogant, short-tempered, and aggressive person, especially at the beginning of the series. Katsuki tends to come off as unheroic; this problematic behavior going all the way back to his early childhood days when he was known to bully a young, Quirkless, Izuku Midoriya. He showed to be extremely arrogant and condescending to those around him, often bragging of his Explosion Quirk's power, and even boasting that he would take on his entire middle school class. He showed open hostility towards Izuku, mainly because of his former Quirkless status, and would frequently put down his dream of becoming a Hero, despite lacking a Quirk, and also gave him the insulting nickname "Deku" (meaning useless and unable to achieve anything). He even threatened Izuku not to apply to U.A. High School and became angry upon both of them passing the Entrance Exam, wanting to be the only person from his middle school to make it there. However, after being accepted into U.A. and experiencing several personal defeats, one of them even coming from Izuku, Katsuki has gradually changed into a less antagonistic person, albeit still retaining a lot of his unpleasant traits. While often portrayed negatively, Katsuki's fierce character and competitive drive have actually granted him an important role among Class 1-A, as a sort of inspirational mood-maker

While a rather volatile hero-in-training, Katsuki is smart enough to discern who his enemies and allies are. He is not particularly nice or open with people who are on his side, or anyone else for that matter, but will act less unfriendly and sometimes even kind to those that manage to earn his respect. Because of his attitude and vulgar language, Katsuki's U.A. classmates often react negatively to him, although they have come to appreciate his skills and warm up to his personality.Katsuki matures slowly through his time at U.A., coming to befriend some of his classmates and willingly engaging in social interaction with them, though remaining solitary for the most part.

Due to the constant praise of his abilities and powerful Quirk, Katsuki has developed a superiority complex, and because of that, he desires to be the first and best at everything. As pointed out by many people, Katsuki loves to win above all else and cannot stand it when he doesn't, leading him to lose his already short temper or, less often, sulk. He is fiercely competitive and will never settle for less than the number one spot, having a compulsive need to always strive for victory and also prove people who doubt him wrong. However, Katsuki also values hard work and fair play, to the point of refusing to acknowledge a winning result if he feels that his victory was not earned by actual merit. Along with that, he detests being pitied or looked down on by others, and will hold contempt towards those that don't take him seriously, while recognizing the effort of those that manage to put up a challenge against him

Because of his Quirk and talents, Katsuki is very confident and brave to where he is willing to go against anyone who challenges him. He never backs down from a fight and will go out when facing such a powerful opponent. From taking on several villains at the Unforeseen Simulation Joint, Katsuki knows when dealing with someone that is out of his league, as he let All Might face off against Nomu. During the First Term Final Exam, Katsuki wasn't afraid to go up against All Might, even though he knew he had a low chance of taking him down head on.

Katsuki is immensely prideful and prefers to act alone, as he hates the idea of being protected or having to rely on other people to assist him unless, in the latter's case, he is recognized as the unquestionable leading figure within a team. At the beginning of the series, Katsuki's cooperativeness was nothing short of atrocious, often ignoring his partners' ideas and suggestions for his own very direct approaches. His teamwork skills gradually improve as the series progresses, even if Katsuki keeps coming off as condescending through his usual tone. However, it's clear he now acknowledges their importance, protecting them from harm while expecting them to do the same for him in return. As a leader, Katsuki is a merciless perfectionist, and will only become satisfied with complete, indisputable victories.

Katsuki often has difficulty accepting his mistakes and shortcomings, and will fiercely deny them whenever they are pointed out by others, regardless of who does it. That doesn't mean, however, that Katsuki doesn't listen to advice, having come to realize his faults and how to somewhat improve on them thanks to the words and actions of other people like All Might and Best Jeanist, but he will never outright admit due to his pride. He prefers to self-reflect in silence and solitude, becoming a bit more brooding during those periods. Katsuki's unchecked pride and aggression has cost him victories on numerous occasions, like the Battle Trial or the Provisional Hero License Exam, and it tends to worsen whenever Izuku is involved. Both characters share a sensitive history with each other, with Katsuki, in particular, being unable to completely overcome his issues with Izuku, although this has not stopped them from working together many times

Katsuki has proven to be one of the strongest students in Class 1-A, earning third place in the Quirk Apprehension Test, while placing first in both the U.A. Entrance Exam, having the most villain points, and the U.A. Sports Festival. Katsuki's fighting style is an all-out offense, using his Quirk's propulsive abilities to close the distance between him and his opponents, followed by a bombardment of close-range attacks that often start with a powerful right hook. Katsuki is able to use his Explosion to propel himself through mid-air, blind opponents, and release long-range blasts, among other applications. Explosion is a versatile Quirk, especially for battle situations, as the recoil caused by the blasts can be exploited by Katsuki for mobility purposes.

Enhanced Strength: Katsuki possesses a high-caliber physical strength, confirmed by his ability to use his Grenade Bracers without sustaining effects from recoil, whereas Izuku nearly dislocated his arm trying to do so. He's also strong enough to casually pick up and throw people of Izuku's size considerable distance with one arm. His physical power is even enough to draw blood from Izuku at 5% of One For All with a kick.

Enhanced Reflexes: Perhaps Katsuki's greatest physical trait is his fantastic reflexes and reaction time. He's shown on several occasions overwhelming his foes with his speed or completely evading all their attacks while striking back such as in his battles with Ochaco, Cider House, and Izuku (even when the latter was at 5% of One For All). Once Izuku began utilizing 8% of his true power, Katsuki was quickly pushed back and nearly unable to keep up at all. His superb reflexes even allow him to evade a jet of carbonated water strong enough to cleave a streetlamp in two. Evading such high-speed water attacks is an impressive feat on Katsuki's part, as jets of water can cut through metal when travelling at 760 m/s (1700 mph), which is over twice the speed of sound.

Enhanced Durability: Katsuki is shown to possess above average endurance and durability. He's tough enough to withstand the blowback of his explosions regularly with only moderate pain. He blocked an 8% kick from Izuku without his arm breaking as well, though received a major scratch because of it. He was even proven to withstand attacks from All Might (while restraining himself), Nine, and the Serpenters, but not without large amounts of pain.

Enhanced Stamina: Katsuki has conditioned himself to fight on for long periods of time even when heavily injured. When inflicted with sword wounds by the Serpenters' (before and after becoming Trigger-enhanced) Sword Kill Quirks, Katsuki continued to fight on par with them, and only collapsed from his injuries after defeating the twin duo. During the Paranormal Liberation War, Katsuki suffered stab wounds from a 75% augmented Tomura Shigaraki's Rivet Stab Quirk but could still hold his own against several Near High-End Nomu with aid from other heroes

Katsuki has always been criticized for his lack of cooperativeness, usually as a result of his overwhelming ego that prevents him from following the lead of others. However, thanks to Katsuki's very own determination, perfectionism, and intelligence, he is a capable leader should others decide to follow him instead. During round four of the Joint Training Battle, Setsuna Tokage admitted that even if her team had attacked him all at once, they stood no chance of victory. In the end, despite Class 1-B's exceptional teamwork and Setsuna's strategic planning, they failed to capture a single member of Class 1-A, mostly thanks to Katsuki's efforts, adaptability, and superior skills. More impressively, Katsuki's judicious forethought, allowed his team to secure victory in less than 5 minutes. Though he may not realize it, Katsuki is one of the main motivators of Class 1-A alongside Izuku, thanks to his power and indomitable drive to win

Katsuki is surprisingly adept in culinary practice, being able to cut vegetables very quickly and with ease, as well as spotting how Shoto hadn't cut chives properly and scolding him for it.

Katsuki's Quirk allows him to secrete nitroglycerin-like sweat from the palms of his hands and ignite it on command, allowing him to create strong explosions.The more Katsuki sweats, the stronger his explosions become.If Katsuki overuses this power, his forearms will start to ache.

Katsuki has a strong grasp on the applications of his Quirk, something that was acknowledged by Best Jeanist, a top Pro Hero; not only can Katsuki use the explosions for attacking, he can also use them to propel himself and navigate through the air at high speeds, allowing him to fly at his opponents without giving them time to react,as well as evade incoming attacks, even while in the air.The shockwave from an explosion can even be used as a shield.

Katsuki can keep up his explosions continuously, long enough to break through Eijiro's hardening Quirk and negate Shoto's "Heaven-Piercing Ice Wall" for a short while before being overwhelmed.

As part of his training, Katsuki submerged his hands into boiling water to expand his sweat glands, then created chain explosions toward the sky to increase the scale of his attacks.

Izuku is somewhat short for his age, his round face is framed by a short mop of fluffy dark-green hair which curls up at odd angles around his head, casting noticeably dark shadows onto itself. His eyes are large and somewhat circular and his irises are the same shade of green as his hair, which at times are very watery, and are usually stretched quite wide, giving him an innocent, energized appearance. He has a set of four symmetrical freckles in diamond formations, one on each cheek. Izuku has often described as "plain-looking" or "not standing out" by others.

Though he was initially very skinny, Izuku has gained toned muscles after his ten months of extensive training with All Might, and as the series progresses, these are shown to become more developed and defined as he gradually grows stronger.

Bakugo's bullying of Deku stemmed from his own feelings of inadequacy and the fear of being surpassed, not just pure enjoyment. Despite their troubled past, Bakugo and Deku are now starting to improve their relationship and focus on their shared goal of becoming heroes

He used to look down on Midoriya and violently torment him because the only thing he believes in his strength and Midoriya was Quirkless and therefore weak.

The U.A. High School student uniform consists of a long-sleeve, button-up white shirt, a gray jacket with blue-green stripes, and a red tie. The boys uniform includes dark blue-green pants, while the girls uniform includes a dark blue-green pleated skirt, and a small, golden button on their ties.