One Punch Man: 10 most powerful villains in One Punch Man, ranked

Villain
Villain's as seen in One Punch Man (Image credit: Madhouse Studios and Shueisha)

One Punch Man is known for intense fights between characters with an absurd level of power. As the story has progressed, the series has introduced a unique spectrum of characters, ranging from grotesque monsters to former heroes turned enemies.

They are categorized by threat levels, starting from Wolf, Tiger, Demon, Dragon, and God. In this article, we will be talking about the top 10 most powerful villains in the series so far and ranking them accordingly.

Disclaimer: Some of the sections in this article contain spoilers from the manga chapters.


The 10 most powerful villains in One Punch Man

10) Deep Sea King

Anime Debut: Season 1, Episode 8

Manga Debut: Chapter 23

Threat Level: Demon

Deep Sea King was one of the first major threats introduced in One Punch Man. He shook the Hero Association and forced them to take action. His monstrous strength was able to overwhelm S-Class heroes like Puri-Puri Prisoner and critically injure Genos.

Despite being classified as a Demon-level threat, he was successful in showing systemic flaws and vulnerability of the Hero Association. His existence was a testament to the lack of preparation among Heroes and sets a tone for more complex and powerful villains to come in the subsequent arcs.


9) Elder Centipede

Elder Centipede as seen in anime (Image credit: Madhouse Studios)
Elder Centipede as seen in anime (Image credit: Madhouse Studios)

Anime Debut: Season 2, Episode 10

Manga Debut: Chapter 68

Threat Level: Dragon

Elder Centipede in One Punch Man was one of the largest and most physically durable monsters in the series. With a body that spanned across entire city blocks, and an armament strong enough to fend off attacks, his destruction level so high that he could smash cities while fighting against heroes.

He even managed to force the legendary hero Blast into retreat during a past encounter. Elder Centipede was the personification of a Dragon Level Threat. Saitama managed to take him down, notifying the audience about the limitations of S-Class Heroes.


8) Carnage Kabuto

Anime Debut: Season 1, Episode 3

Manga Debut: Chapter 10

Threat Level: Dragon

Designed by Dr. Genus, Carnage Kabuto was a bioengineered weapon in One Punch Man. He was a mix of brute strength and intelligence. When Carnage Mode was activated, he was practically unstoppable.

Even while having a brief battle with Genos, it was clear that he had the upper hand, and Genos did not stand a chance. Due to his powerful nature, even his creator was afraid to leave him. Despite being introduced early on, he left a lasting impact due to his presence and was rightfully classified as a Dragon-level threat.


7) Orochi

Orochi as seen in manga (Image credit: Shueisha)
Orochi as seen in manga (Image credit: Shueisha)

Anime Debut: Season 2, Episode 12 (post-credits)

Manga Debut: Chapter 92

Threat Level: Dragon (possibly God)

Orochi was also known as the Monster King in One Punch Man. He was the result of a biological experiment that allowed him to become strong. As Orochi fused countless monster cells into a constantly evolving form, he became a terrifying villain to face. Additionally, he has the power to absorb other monsters to power himself up, giving him an unfair upper hand in combat.

Moreover, he was the first villain to ever feel like the heroes were fighting against a true final boss. Later on in the series, his partnership with Psykos turned him into something more dangerous than anyone could have anticipated.


6) Garou

Anime Debut: Season 2, Episode 3 (as human); monster form teased in finale

Manga Debut: Chapter 45 (human), Chapter 140 (monster form)

Threat Level: Dragon (later God-level in manga)

Garou's evolution of becoming a villain in One Punch Man is an interesting one. He was originally introduced as a human who was great at martial arts and hated heroes. Gradually, he transformed into a monster just through sheer willpower. By the time he transformed into his Monster form, he had defeated several S-Class heroes.

His transformation peaks during his fight with Saitama, where he gains Cosmic Fear Mode. Garou was able to gain more strength because of God, who infused him with more power. He was one of the villains who pushed Saitama beyond his usual limits.


5) Psykos

Psykos as seen in manga (Image credit: Shueisha)
Psykos as seen in manga (Image credit: Shueisha)

Anime Debut: Mentioned in Season 2

Manga Debut: Chapter 93 (human), Chapter 129 (fusion form)

Threat Level: God

Psykos is a master psychic and high-ranking Monster Association member in One Punch Man. Initially, she operated under the alias of Gyoro Gyoro and manipulated others to do her work. Her ultimate goal was to destroy the Hero Association and let monsters take over the world.

Her battle with Tatsumaki is one of the most intense psychic battles in the manga. During the Monster Association arc, Psykos is a central figure who takes the spotlight and cements her as one of the strongest villains in the series.


4) Homeless Emperor

Anime Debut: Has not yet appeared in anime

Manga Debut: Chapter 93

Threat Level: Dragon (empowered by God)

Homeless Emperor is one of the most chilling villains in One Punch Man because of his abilities. He was given the ability of near-unlimited energy projection powers by God. With these new powers, Homeless Emperor can vaporise even S-Class heroes by summoning orbs of light that act as explosives.

Interestingly, he is not someone with brute strength or any monstrous traits. He is strong only because of his energy manipulation powers. During all the time in One Punch Man, his downfall only comes when God does not deem him useful.


3) Black Sperm

Anime Debut: Not yet in the anime

Manga Debut: Chapter 93

Threat Level: Dragon

Black Sperm is one of the Monster Association’s members in One Punch Man. He can come off as a comical villain, but he has a fearsome ability. Black Sperm can split infinitely into clones, and each of them is as strong as the original. This makes it next to impossible to kill him.

During a battle, he can merge these clones into a gigantic being he calls Golden Sperm. Furthermore, he also has regenerative abilities that make him a nightmare to fight. Even after being seemingly defeated, he finds ways to survive by shedding parts of himself and retreating.


2) Boros

Boros as seen in anime (Image credit: Madhouse Studios )
Boros as seen in anime (Image credit: Madhouse Studios )

Anime Debut: Season 1, Episode 10

Manga Debut: Chapter 29

Threat Level: Dragon (debatably God)

Boros is one of the most iconic villains in One Punch Man. He was the major antagonist during the first season of the anime. Moreover, he is an extraterrestrial conqueror who has traveled the universe for decades because he was told that there is a prophesied battle that would break his cycle of boredom.

His arrival is marked by the destruction of A-City, and he is quickly seen as a god-like threat. During his fight with Saitama, Boros was one of the few who withstood not one but multiple punches from him.


1) God

Anime Debut: Only hinted at in Season 2

Manga Debut: Chapter 109

Threat Level: God

God is the most mysterious and ominous presence in One Punch Man. It is an unknown entity that communicates and manipulates all the events from the shadows. It has granted powers to several major villains like Homeless Emperor and Garou (Cosmic form).

Even if it has not entered a battlefield, the ability to bestow divine powers makes it the most dangerous being. Its motivations are unclear, but its ultimate goal seems to be to remake the world by erasing humanity’s dominance.


In conclusion, One Punch Man has been a successful franchise not only because of a strong protagonist but also the spectacular villains. Their introduction in the plot only enriched the narrative with intense battles, complex ideologies, and unmatched splendor. As the manga is still ongoing, there is a high chance that this list might change as the story progresses, with stakes higher than ever!

Edited by IRMA