My Hero Academia boasts a large, colorful cast of characters. The heart of the show is U.A. High School's Class 1-A. They're all pursuing their dream to become pro-heroes and fight against nefarious villains. They're often pitted against each other or against powerful adults who want to wipe out the next generation of heroes. Seeing them under pressure gives us a chance to see their true colors.
Since all of the characters are trying to become professional superheroes, you can probably make a case for any of them to be in Gryffindor. But what would the fun of that be? We've gone through the entire class and assigned them their Hogwarts houses.
10 Mineta - Squib
No further questions.
9 Hagakure, Koda, & Sato - Hufflepuff
Let's get some C-listers out of the way first. These characters don't get a lot of characterization, but, from what we do know, they all seem like they'd fit into Hufflepuff. Hagakure is a bubbly, easy-going character. She's shown a tendency to be easily manipulated, but maintains an upbeat attitude anyway.
Koda is probably the most tenderhearted of all 1-A's students. His quirk gives him the ability to speak to animals, and he prefers their company to people.
Sato's quirk gives him extreme strength after consuming sugar, and, at first glance, he might seem more like a Gryffindor. However, his real passion is baking, and he was even humbly surprised that his classmates like his sweets so much.
8 Jiro & Aoyama - Slytherin
Jiro is a very pragmatic individual and she presents herself as indifferent to most people. In particular, she doesn't stand for the nonsense of some of the boys in her class and isn't afraid to put them in their place. However, she's much warmer with certain friends, particularly Yaoyorozu, and is quick to defend those closest to her. She's also independent and calculating and would fit right in with Slytherin.
Aoyama is also a Slytherin, but for different reasons. He embodies the arrogance of Slytherin house, as he's always trying to impress people with his lineage or his looks. Aoyama doesn't make it easy to get to know him personally and holds himself apart from his peers. He is also more likely to keep himself out of danger than to save his skin rescuing people.
7 Sero & Shoji - Hufflepuff
Sero's primary characteristic (besides his weird tape elbows) is his perpetual smile. He's one of the most sociable students in the class and can make friends with anyone. He prefers to take it easy and make jokes, but, when push comes to shove, he'll lend a helping hand to someone in need.
Shoji, in spite of his intimidating appearance, is also actually very friendly. He's gentle and tries to protect people when he can since his multiple strong arms can also be used to shield people. He doesn't have problems working on a team with most people and doesn't hold grudges, clearly making him a Hufflepuff.
6 Kirishima & Tsuyu - Gryffindor
Kirishima deeply respects anyone who shows off a brave and noble attitude and he extends his friendship to those who live up to his expectations. He's also willing to call people out when they behave dishonestly or cowardly. Before attending UA, he thought his own quirk wasn't flashy enough to make him a pro-hero, but, since joining UA, his confidence has grown and he presents himself as tough and fiery. He's more concerned with helping people than following rules and will happily risk himself to aid his friends.
Tsu is less obviously Gryffindor than Kirishima, but she's still a straightforward and very responsible person. Since she has experience taking care of her younger siblings, she knows what it means when other people rely on you to be brave. She also has some of the strongest morals of the entire class. She believes that breaking laws whenever they feel like makes her and her friends no better than villains. Tsu isn't afraid to defend her beliefs and herself even against the people she cares about.
5 Kaminari & Ojiro - Hufflepuff
Kaminari tends towards recklessness and might, at first glance, look like a Gryffindor. However, he's one of the students most likely to panic in a combat situation and wouldn't fit among the brave lions. Instead, he's a friendly, sociable guy who even managed to make friends with Bakugou. More of a well-meaning prankster than anything else, he fits in with casual Hufflepuff.
Ojiro, on the other hand, embodies the Hufflepuff ideal of hard work. He's dignified, humble, and won't accept praise he doesn't feel he's earned. Also, as a martial arts hero, he's trained extensively to reach the level of mastery he has over his quirk.
4 Tokoyami & Iida - Slytherin
Okay, just because he's a bird doesn't mean Tokoyami belongs in Ravenclaw. Don't be discriminatory. He's a very focused and reserved person and often ignores questions or requests from his classmates if he thinks they're pointless. He's also very aware of his power and his limitations. Tokoyami is more willing to back down and live another day than push himself in a dangerous situation.
Iida, meanwhile, is the definition of doing the most. This is because he's trying to live up to his family's reputation. He has the ambition to be the best pro-hero in the Iida family, and he's seeking respect from his peers by being their class representative.
3 Uraraka & Ashido - Hufflepuff
One of the most empathetic and people-focused members of Class 1-A, Ururaka could comfortably be a Hufflepuff. She's often the first to notice if any of her classmates are struggling or upset. Despite having a difficult life as a child with her and her parents going to extreme measures to save money, she continues to put on a cheerful face. She has a strong inner strength and is a reliable friend.
Ashido is a Hufflepuff as well, but of the more carefree variety. She's happiest hanging out with her friends. She's less concerned about school than she is about daydreaming about the love lives of her classmates.
2 Yaoyorozu & Todoroki - Ravenclaw
Yaoyorozu is a natural leader in many situations, frequently able to keep a cool and level head even when facing off against villains. She doesn't tolerate failure either from herself or her peers. In fact, she can be pretty blunt when pointing out their mistakes. However, this comes from a place of wanting to help them all become the best heroes they can be. Her perfectionism and her dedication to her studies seem solidly Ravenclaw.
Todoroki's house, however, is probably one of the most hotly debated among fans. We think he also fits into Ravenclaw. Originally very reserved and unemotional, he focused only on his studies and on getting stronger. In later arcs, the friendship of his classmates has loosened him up somewhat, but he still tends to be a lone wolf. He relies on his own abilities and knowledge more than anything else.
1 Midoriya & Bakugou - Gryffindor
Everyone in the world knows Deku's a Gryffindor. The boy's based his entire belief system on being his admiration for All Might, the symbol of peace. He truly believes in the most basic tenet of heroism: protecting those in need. Since he's completely invested in his moral code, no holds barred, he's willing to repeatedly sacrifice himself to defeat evil and save innocent lives. You only need to see him break all his bones a couple of times before that's perfectly clear.
Bakugou, despite being Deku's rival, is also a Gryffindor. In fact, the two of them have a very similar set of morals when you get down to it. They both hero-worship All Might and want to follow in his footsteps.
Bakugou just has a chip on his shoulder. He feels like he's being overshadowed by Deku, of all people, and he pushes himself even harder to prove his worth. Just in case it wasn't clear he's a Gryffindor, he does this in the most impulsive way possible, sometimes putting himself at risk. But, at the end of the day, he wants to be the number one hero just as badly as Midoriya.