12 Strongest Characters In One Punch Man, Ranked

Pavas Gagneja
May 9, 2023
6 min read

Updated: Oct 9

One Punch Man has never been short on introducing crazily powerful characters. The series constantly throws absurdly strong Villains and Heroes into the ring, like alien conquerors, cosmic beings, and unbelievably strong humans. Each fight somehow finds a way to raise the bar, showing just how far beyond human limits this world has gone.

Interestingly, some characters even evolve through different forms. Take Garou, for instance, whose transformation from Hero Hunter to cosmic threat completely redefined power in the series. Others, like Tatsumaki or Blast, show how humans can be just as terrifying as the villains. And then comes Saitama, the guy who can just end any fight with a single punch. So, here’s a look at the twelve strongest characters in One Punch Man, who stand above the rest.

UPDATE: This article was updated by Daksh Chaudhary on October 9th, 2025. We have added 2 more entries to the list, added new photos, and improved the content of the article. Also, we have added a table at the end to enhance our readers' experience.

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12/12 Sage Centepede

Sage Centipede is one of the most terrifying monsters in One Punch Man, both in size and destructive power. It towers over skyscrapers, and its armored body feels like it's built with living steel. Unlike other centipede monsters before it, Sage Centepede carries a terrifying aura and calls itself a messenger of “Earth’s will".

During its clash with Garou and the Hero Association’s top fighters, Sage Centipede proved nearly unstoppable. We saw that its shell could withstand attacks that leveled cities, and its regeneration made it difficult to handle. Even Blast had to step in to contain the destruction.

11/12 Platinum Sperm

With a name like Platinum Sperm, it’s hard not to laugh at first, but that smile fades pretty quickly once you see what he can do. As the ultimate evolution of the Black Sperm clones, Platinum Sperm is a fusion of trillions of cells working in perfect sync. The result? A being so fast and precise that even Flashy Flash, one of the quickest heroes alive, struggled to keep up.

Interestingly, his arrogance matches his power. He genuinely believes he’s perfection itself, and to be fair, it’s hard to argue when he can slice through anything that moves. In addition, his fight against Garou showed just how insane his reflexes and adaptability were. Despite the silly name, Platinum Sperm stands as one of One Punch Man’s strongest characters.

10/12 Evil Natural Water

Evil Natural Water first appeared during the Monster Association Arc, and it’s exactly what the name suggests — a mass of liquid with the temperament of a natural disaster. With no real face or form, it’s basically a floating orb of water with piercing eyes that can fire high-pressure blasts strong enough to shred concrete and steel. Its presence alone feels intimidating, like nature itself decided to rebel.

What makes Evil Natural Water one of the most terrifying OPM villains is how unpredictable it is. It doesn’t speak, negotiate, or even think in a human way. Instead, it simply reacts to hostility. We’ve seen it wipe out entire groups of Heroes in seconds, and later, even evolve into Evil Ocean Water, growing to monstrous proportions.

9/12 Flashy Flash

Flashy Flash with white cloak and serious face

Flashy Flash is the embodiment of speed and precision in One Punch Man. He’s so quick that even top Heroes and Monsters can’t see his attacks coming. Then comes his elegant swordplay and lightning reflexes, which make him a nightmare for anyone who relies just on power. Interestingly, even among the elite S-Class Heroes, Flashy Flash stands out.

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He’s shown us some of the best OPM battles. He effortlessly defeated two Dragon-level Monsters, Gale Wind and Hellfire Flame, at once. What’s more, he managed to hold his own against the monstrous Garou, pushing him harder than most Heroes ever could.

8/12 Tatsumaki

Tatsumaki looking serious while fighting

It’s almost funny how someone who barely reaches Saitama’s shoulder can toss around Dragon-level monsters like paper balls. Tatsumaki might look like an innocent, doll-sized girl, but that’s exactly what makes her so surprising. Her telekinesis can level entire cities, buildings, monsters, and even giant centipedes crumble like toys when she gets serious.

She’s also known for her hilarious moments with Saitama. Whether she’s yelling at him for stealing her glory or showing off just to prove she’s stronger, their interactions never fail to entertain. But all jokes aside, when she gets serious, she has taken down Monsters like Psykos and Orochi in one of the series’ most amazing battles.

7/12 Psykos-Orochi

Psykos-Orochi is a unique character in the One Punch Man universe, being a fusion between the monster Orochi and the human psychic Psykos. As a result of this fusion, Psykos-Orochi possesses immense strength, regenerative abilities, and powerful psychic powers.

His ability to manipulate energy and create powerful energy blasts makes him a formidable opponent, and he is able to go toe-to-toe with some of the strongest Heroes in the series. In addition to his physical and psychic abilities, Psykos-Orochi is also a skilled strategist, able to plan and coordinate attacks against his enemies.

6/12 Monter King Orochi

Monster King Orochi made his grand entrance during the Monster Association arc, and right from the start, it was clear this wasn’t just another monster of the week. His body is made of writhing tentacles, a demonic face, and enough size to fill entire rooms. Then come his powers, that match his appearance. For a while, fans thought he seemed completely untouchable.

Interestingly, even S-Class heroes struggled to handle his monstrous form. It wasn’t until Saitama stepped in that Orochi finally met his end. In true One Punch Man fashion, it was over in a single punch. Still, that doesn’t take away from how terrifying he was while he lasted.

5/12 Boros

Boros is the leader of the Dark Matter Thieves and the main antagonist of the first season of the series. As an alien with immense physical strength, regeneration, and energy manipulation abilities, Boros is one of the most powerful villains in the series.

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His battle with Saitama remains one of the most epic and intense one in the entire One Punch Man franchise. Even though he was no match for Saitama, initially, he looked like a great threat to the other Heroes.

4/12 Blast

Strongest One Punch Man characters Blast fighting

Blast is a mysterious and elusive character in the One Punch Man universe, known as the strongest Hero in the Hero Association. His abilities are shrouded in mystery, but it is known that he possesses the ability to access cosmic radiations, granting him immense strength and the ability to manipulate energy.

All his abilities combined make Blast one of the most powerful characters in the entire series, and his strength and abilities are unmatched by most Heroes or villains. However, despite his incredible power, Blast has only been seen sparingly throughout the series, with his whereabouts and motivations unknown.

3/12 Cosmic Garou

Cosmic Fear Garou is the point where Garou stops being just a man and becomes something entirely different. After being granted cosmic power by God, he transforms into a being that looks more like a living galaxy than a human. In fact, his body glows with stars and cosmic energy, and every movement feels otherworldly. What makes this form so striking is that it still carries Garou’s fighting skill, but now amplified to godlike levels.

Additionally, his battle with Saitama is one of the wildest moments in the series, shaking and destroying planets. Garou copies Saitama’s moves, evolves mid-fight, and even makes the Caped Baldy take things seriously, which almost never happens. In spite of losing, Garou’s cosmic form turned him into one of One Punch Man’s most memorable and tragic characters

2/12 God

Now let's talk about the most mysterious figure in One Punch Man. No one really knows what God is; a deity, a cosmic being, or something even worse. However, its influence is undeniable. It has appeared only a few times, yet every time, it completely changes the tone of the story. In fact, even the most fearless characters freeze when they sense its presence.

We’ve seen God grant powers to characters like Homeless Emperor and Garou, turning them into villains far beyond human limits. It never shows its full strength, but the hints are enough to prove that it could easily be the ultimate villain of the series.

1/12 Saitama

Honestly, no list about One Punch Man’s strongest characters would be complete without the man himself — Saitama. Despite his plain looks and that always-bored expression, he’s literally the definition of being too powerful. He walks around like an average guy who forgot to buy groceries, yet he can destroy Monsters that could level cities with a single punch.

Additionally, what makes him truly special is that he broke his limiter, which holds every being’s potential in check. Despite that, he still remains humble, chill, and honestly a bit clueless sometimes. And that mix is exactly why Saitama makes One Punch Man so entertaining.