My Hero Academia and Demon Slayer are two huge anime series right now. And while watching one of the shows, it is possible for some of them to sound familiar. That is because the two shows share plenty of voice actors.
Here are ten characters from these two shows who have the same voice actor.
List of the My Hero Academia and Demon Slayer characters
1. Daiki Yamashita as Deku and Yushiro

In my own Hero Academia, Daiki Yamashita plays Deku. Deku, the main character, starts out with no abilities despite having the dream of being a hero. Yamashita makes him sound nervous but determined. He also portrayed Yushiro, the demon who assisted Tamayo.
Yushiro is short-tempered, and he gets really mad when someone disrespects Lady Tamayo. My Hero Academia delivers an earnest kid who won’t stop going, and Demon Slayer offers a loyal demon. They have the same voice actor, but those two characters are completely opposite.
2. Hiro Shimono as Dabi, Wash, and Zenitsu Agatsuma

Hiro Shimono voices two characters in My Hero Academia: Dabi and Wash. Dabi is a cold-hearted villain with some family issues with Endeavor. Wash is this adorable hero who's a washing machine mascot, and he saves the day by using water to stop crimes.
And then in Demon Slayer, Shimono voices Zenitsu. He is the user of the lightning breathing technique who complains about everything but otherwise fights like a savage when he’s unconscious.
My Hero Academia puts Shimono in a position where he is giddy and gloomy. Demon Slayer lets him be funny and powerful at the same time. Zenitsu's constant freaking out and then his smooth fighting voice prove this guy's got range.
3. Koki Uchiyama as Tomura Shigaraki and Rui

Koki Uchiyama does a great scary character. In My Hero Academia, he plays Tomura Shigaraki, the ultimate villain who just wants to tear down all the things heroes stand for. Shigaraki is unstable and filled with serious baggage from his past.
In Demon Slayer, Uchiyama is Rui, the spider demon, who creates a fake family and abuses them if they fail him. Both these two characters behave like squabbling brats. But they are scary.
In one show, Uchiyama is the main villain in the form of Shigaraki. Shigaraki stands as the biggest obstacle for the heroes. In the other, Uchiyama is one of the creepiest early demons. Rui was Tanjiro's first major villain in the series. Uchiyama makes both characters sound dangerous and unpredictable.
4. Nobuhiko Okamoto as Katsuki Bakugo and Genya Shinazugawa

Nobuhiko Okamoto is great at playing intense characters. In My Hero Academia, he voices Katsuki Bakugo. Bakugo is loud, hates losing, and is a very skilled fighter. He always wants to win and keeps pushing himself to become a better hero.
Okamoto also voices Genya in Demon Slayer, another hot-headed character. He eats demon flesh to gain temporary powers. He wants to prove himself to his older brother.
Fans of My Hero Academia will notice the same energy. Bakugo and Genya both have that explosive spirit Okamoto is known for. Demon Slayer shows Genya as rough but secretly insecure. Both hide their feelings behind anger.
5. Tetsu Inada as Endeavor and Father Spider Demon

Tetsu Inada voices two dads, but they're very different. In My Hero Academia, he's Endeavor, the number one hero after All Might retires. Once upon a time, he used to be a terrible father. Endeavor pushed his family way too hard trying to beat All Might, and now he's trying to fix his mistakes.
In Demon Slayer, Inada voices the Father Spider Demon on Mount Natagumo. This demon is huge but scared of Rui, who controls him. He's powerful but submissive.
My Hero Academia explores how Endeavor tries to become better after hurting his family. He tries really hard to earn the forgiveness of his children and be better. Demon Slayer shows a father figure who's both scary and sad. The Father Spider Demon did whatever he had to do to survive. Inada makes both sound authoritative in their own ways.
6. Tomokazu Seki as Selkie and Sanemi Shinazugawa

Tomokazu Seki voices two protective characters. In My Hero Academia, he plays Selkie, the orca hero who trains students. Selkie is friendly and takes his job seriously. His quirk gives him the abliity of a spotted seal.
In Demon Slayer, Seki voices Sanemi, the Wind Hashira. Sanemi seems mean at first, especially to Nezuko, but his backstory sheds more light on why. He is aggressive but devoted to protecting humans like his fellow Hashiras.
My Hero Academia shows Seki as a supportive teacher. Demon Slayer shows him playing someone who's been through hell but still protects people. Sanemi's tough exterior hides how much he actually cares.
7. Tomokazu Sugita as Skeptic and Gyomei Himejima

Tomokazu Sugita plays opposite types in these two shows. In My Hero Academia, he voices Skeptic. He's a villain who's obsessed with technology and everything surrounding it. Skeptic is smart and loyal to the villain's cause.
Sugita also plays Himejima Gyomei, the Stone Hashira, who is often referred to as the strongest demon slayer. Gyomei cries easily. In almost every shot of him at the beginning of the series, he was either crying or had his palms together, praying. He has a sad backstory about kids he couldn't save.
My Hero Academia uses Skeptic as a tech villain who works from the shadows. He is not a character that we get to see very often, but he is useful to the villains. On the other hand, Demon Slayer presents Gyomei as a gentle giant who is very strong. He is very emotional and cares very deeply for humans. Sugita makes both memorable even though they are nothing alike.
8. Toshihiko Seki as Eddie Soul and Muzan Kibutsuji

This pairing is interesting. In My Hero Academia, Toshihiko Seki voices Eddie Soul, who barely appears in the show. He was an engineer who was forced to work for Humarise, a terrorist cult that wanted to eradicate quirk users.
But in Demon Slayer, Seki plays Muzan, the main villain and the first demon ever. Muzan is elegant, ruthless, and scary when he gets mad. He's created basically every demon and has been alive for over a thousand years.
My Hero Academia doesn't give Seki much to do with Eddie Soul. Demon Slayer lets him be one of anime's scariest villains. Muzan acts calm and classy until someone mentions the wrong thing, then he loses it.
9. Toshiyuki Morikawa as Hikage Shinomori and Kagaya Ubuyashiki

Toshiyuki Morikawa voices wise, calm characters. In My Hero Academia, he plays Hikage Shinomori, the fourth One For All user. Hikage lived alone to keep people safe from All For One.
In Demon Slayer, Morikawa voices Kagaya Ubuyashiki, the head of the Ubuyahiki family. He was also in charge of the demon slayers. Kagaya is kind, patient, and all the Hashira respect him. Unfortunately, he is sick due to a family curse. As a result, he could not pick up a sword to fight demons directly.
These two characters are very similar. They both understand what it means to let go of their own dreams for the greater good. My Hero Academia shows Hikage as someone who sacrificed his happiness for others. In Demon Slayer, Kagaya is a leader whom people would die for. Both understand what sacrifice means. Morikawa’s easy voice is perfect for both
10. Yoshitsugu Matsuoka as Yosetsu Awase and Inosuke Hashibira

Yoshitsugu Matsuoka plays very different roles here. In My Hero Academia, he voices Awase from Class 1-B. Awase's quirk is called Weld and it allows him to weld stuff together. In the Training Camp arc, it was him that saved Momo.
In Demon Slayer, Matsuoka voices Inosuke. Inosuke uses Beast Breathing and wears a boar mask. He was raised by boars and loves to fight anyone to prove he’s the strongest.
My Hero Academia uses Awase as a supporting character who helps when needed. Demon Slayer makes Inosuke a main character who's loud, crazy, and somehow lovable. Matsuoka goes from calm to absolutely wild between these roles.
Conclusion
It’s always fun to learn that your favourite characters share the same voice actors. The two anime are very different, but both have great voice talent.
These ten pairs prove how skilled the actors are. They can play heroes and villains, calm people and wild fighters, and make each one feel completely different. Next time you watch either show, you might recognize a voice and remember their other role.