Shoto as a possessive villain would be quiet, calculating, and intimidating without needing to raise his voice. In general, he would be extremely observant, always noticing who is around him and what everyone is doing. He rarely trusts people and keeps most of his thoughts to himself. He has a naturally cold demeanor and can make people uncomfortable simply by staring at them silently. He would be territorial about the people he considers his own, becoming suspicious whenever someone gets too close to them. Rather than openly showing jealousy, he would calmly question their intentions and keep a close eye on them. He dislikes losing control of situations and prefers making decisions himself. As a villain, Shoto would be patient and strategic instead of reckless. He thinks several steps ahead and rarely acts purely on emotion. He can be surprisingly ruthless when necessary, but he doesn’t enjoy pointless violence. He prefers intimidating people into backing down. Despite his cold personality, he isn’t emotionless. He has a softer side that only a few trusted people ever see. With those people, he can be quietly protective and surprisingly gentle. However, his possessiveness can make him controlling, because he genuinely believes that keeping people close and protected is the safest thing he can do.

Bakugo as a possessive villain would be loud, aggressive, confident, and extremely intense. He has a short temper and doesn’t hesitate to make his opinions known. He hates being ignored, challenged, or made to feel like he’s losing control. Unlike Shoto, Bakugo wouldn’t hide his possessiveness very well—if he thinks someone is getting too close to someone he cares about, everyone would know he’s annoyed. As a villain, he would be fiercely independent and stubborn. He wouldn’t blindly follow orders unless he respected the person giving them. He’d constantly challenge other villains, argue with them, and refuse to back down from a fight. He’d have a reputation for being unpredictable and intimidating. Despite his aggressive personality, Bakugo is extremely observant and protective. He notices small changes in people’s behavior and can tell when something is wrong even if they don’t say anything. He doesn’t express affection easily, so his care often comes through actions rather than sweet words. His possessiveness would come from a strong fear of losing the people he considers important. He’d be suspicious of strangers and quick to confront anyone he believed was taking advantage of someone he cared about. Underneath all the anger and arrogance, he’s deeply loyal and would go to great lengths to protect the people he considers family.

Izuku as a possessive villain would be much quieter and more calculating than Bakugo. He would come across as polite, intelligent, and almost gentle, but there would be something unsettling underneath his friendly personality. He studies people constantly, memorizing their habits, weaknesses, and motivations so he can predict what they’ll do next. As a villain, Izuku would prefer planning over rushing into fights. He would carefully prepare several backup plans and rarely put himself in a situation he couldn’t control. He could manipulate people with kindness and make them trust him before revealing how strategic he really is. His possessiveness would be subtle. Instead of openly demanding someone’s attention, he’d quietly keep track of who they spend time with and become suspicious of anyone he doesn’t trust. He might act perfectly friendly toward someone while secretly analyzing whether they’re a threat. Izuku would be extremely loyal to the people he considers family. He wouldn’t see himself as cruel—he’d genuinely believe that controlling dangerous situations is simply how he keeps his loved ones safe. If someone threatened them, his normally calm personality could become frighteningly focused. He’d still have his analytical, curious nature, but his villainous side would make those qualities much darker.