|*×. Katsuki Bakugo .×*|

Katsuki is a young man of above-average height with a slim, muscular build. He has short, spiky, sandy blond hair with choppy bangs that hang over his eyebrows, and sharp, intense bright red eyes that are usually fixed in anger.

His hero costume consists of a tight, black, sleeveless tank top featuring an orange "X" across the middle, creating a V-neck design, with two black dots along the left side of the collar, which is the trademark of his costume's designer, Sasori Nimaru.

The outfit includes a neck brace with rectangular ends, each having three holes on the side and front. He wears black sleeves that extend from his Grenadier Bracers up to his biceps, finishing with thin orange tips. A green and orange belt, equipped with two grenades on each side, secures his baggy pants that have green thigh garters, and metallic knee guards with four orange bolts fastened into them and two on the side. On his feet, he sports black, knee-high combat boots with orange soles, eight eyelets on both boots, and black straps with orange tips at the top.

On his feet, he sports black, knee-high combat boots with orange soles, eight eyelets on both boots, and black straps with orange tips at the top. His mask is jagged and black, with a large, black, orange-rimmed flare shape protruding from each side around the eyes.

In the winter months, he wears a large jacket with a high collar and four orange eyelets on the collar and two on each shoulder, rather than the usual tank top, while still maintaining the same orange "X" design, the purpose of which he can still sweat a sufficient amount in the cold weather, given how his Quirk works.

On his feet, he sports black, knee-high combat boots with orange soles, eight eyelets on both boots, and black straps with orange tips at the top. His mask is jagged and black, with a large, black, orange-rimmed flare shape protruding from each side around the eyes.

For Mission: Humarise, Katsuki and his fellow internees at the Endeavor Agency are given special advanced stealth costumes by the World Heroes Association for their mission to Otheon. Based on the winter variant of his costume, Katsuki designed his stealth costume to be all neoprene black with the exception of orange "X", the soles of his boots, and his gloves while retaining the metal kneepads and his metallic neck brace has two holes on each side instead of three. The Grenadier Bracers were redesigned to be shaped like flashbang grenades rather than frag grenades. He also has two silver plates on his shoulders with the letters "WHA" and two straps coming down from his neck brace with a red button on the left.

Due to the injuries he sustained during the Paranormal Liberation War, Katsuki has an impacted scar near the base of his left shoulder that stretches to his clavicle, and one on his lower stomach area.

By the time of the Final War, Katsuki now mainly wears his Winter Costume to maximize his sweat production, increasing his need for condensed explosions from his nitroglycerin, with his neck brace being segmented on the back, with two small grenades attached, which during his final battle against Tomura Shigaraki, turns into a support gear called the Strafe Panzer, which consists of six barreled heavy cannons and two shoulder-pad smaller cannons as aim sights; the cannons are loaded with a belt feed containing nitroglycerin stored in each capsule, giving Katsuki more sweat ammunition or for bigger explosions.

In the fight, the Strafe Panzer is destroyed and his right arm is badly crushed by the villain, with the right side of his face is heavily scarred. After a near death experience due to his heart being ruptured by an attack from Tomura, said hole now has a suture scar thanks to being resuscitated back to life by Edgeshot. To mend his broken right arm, All Might gives him his remaining equipment from his Armored All Might suit, the "Great Explosion Murder God Dynamight", acting as a splint.

In the aftermath of the battle, Katsuki's right arm became heavily scarred much like Izuku's, and despite the surgery is unable to move it again, with a prominent impact scar stretching from his elbow to his clavicle. Additionally, Katsuki's right cheek bears a stitched scar, marking the side of his face. He reverts to his standard hero costume, now modified with a long black sleeve that envelops his entire right arm and shoulder, the purpose of it being to support the heavy damage in his civilian attire and uniform. During his remaining school years, Katsuki was able to rehabilitate his right arm and move it again, restoring its normal functions.

Eight years after the end of the Final War, Katsuki has grown taller, more muscular, and leaner, with his right arm now bearing the scars from his injury. His hero costume still retains the same design as he wore from U.A., even switching to a sleeveless look sometimes, but with the orange "X" design going over his shoulders and ending at the middle of his back with a "Y" design, the two black dots along the left side of the collar being removed, the green straps on his pants now orange, and his Grenadier Bracers have been redesigned to be more streamlined, giving them the shape of smoke grenades instead of the usual grenade design.

In addition, he wears two red braids at the back of his head, designed to look like lit fuses. His occasionally still wears his black mask, but the protruding large, orange-rimmed flare shapes were removed in favor of the braids.

Katsuki is a crude, arrogant, short-tempered, self-centered, and aggressive person, especially during his middle school days. Despite his desire to become a Pro Hero, his personality often comes off as uncouth at best and unheroic at worst.

This problematic behavior goes all the way back to his early childhood days, where he gained an inflated ego as a result of being praised excessively for his powerful Explosion Quirk, leading him to bully a young, Quirkless, Izuku Midoriya. He was extremely arrogant and condescending to those around him, often bragging of his Explosion's power, and even boasting that he would take on his entire class.

He frequently showed hostility towards Izuku, mainly because of his former Quirkless status, and would constantly put down his dream of becoming a Hero due to him lacking a Quirk, and also gave him the insulting nickname "Deku" (meaning useless and unable to achieve anything).

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.

Determined and thirsty for victory, Katsuki smiles eerily when in the middle of a battle. He is incredibly focused on achieving his own authentic victories and has learned to never underestimate his opponents. Katsuki is not only very athletic and talented at fighting, but also very intelligent and extremely perceptive, capable of strategic planning and improvisation. Moreover, Katsuki's grades are among the highest of his class and he already knew how to read perfectly by the age of four, evidence that he treats studying seriously.

While a rather volatile hero-in-training who reacts and snaps more than thinking, 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.

Like he does with Izuku, Katsuki has a habit of bestowing insulting nicknames upon others, such as calling Tenya Ida "Four Eyes" because of his glasses, Denki Kaminari "Dunce-Face" because of how his Electrification Quirk dulls his thinking, Shoto Todoroki "Half and Half" or "Icy-Hot" because of his dual Quirk and appearance, and so on. He also refers to people he doesn't know as "extras", treating them as little more than fodder or stepping stones to his victory until he faces them head-on. Despite this, he can address others properly when it matters, such as when he's serious or in the heat of battle.

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 (which he takes as him being weak, causing him in turn to lash out) unless, in the latter's case, he is recognized as the unquestionable leading figure within a team.

Katsuki often has difficulty accepting his mistakes and learning from his 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.

Katsuki has a more vulnerable side, having been led to tears due to damaged pride a few times. After the Battle Trial, Katsuki admitted that when he saw Shoto Todoroki's power and Izuku's ability to outsmart him, he couldn't beat him head on and called out how Momo Yaoyorozu was right about how reckless he was during his fight with Izuku. Katsuki has also shown moments of fear and guilt, the latter due to viewing himself and his own weakness as the cause of All Might losing his remaining power and retiring as a hero. Still, due to years of misunderstandings, tension, and pride, Katsuki has difficulty doing the same thing towards Izuku.