One Punch Man is not only one of the most unique parodies anime series—taking jabs at popular genres—but also a fan-favourite thanks to its epic battles and overpowered characters.
In this post, we present our definitive ranking of the strongest One Punch Man characters, featuring jaw-dropping feats from both the manga (adapted by Yusuke Murata) and the anime.
Overgrown Rover
Overgrown Rover is one of the most unique threats in the One Punch Man universe.
This monstrous guardian dog has evolved to possess powerful energy blasts and unyielding resilience.
Even after sustaining devastating blows, its ferocity remains, making it a rare challenge that hints at the unpredictable evolution of monster power.
If you’re searching for the most bizarre yet dangerous monsters among the One Punch Man strongest characters, Overgrown Rover deserves a close look.
Platinum Sperm
An evolution beyond Golden Sperm, Platinum Sperm possesses incredible speed and strength, allowing him to blitz opponents with ease.
He was able to hold his own against Flashy Flash and other top fighters, though he was ultimately outclassed by higher-tier beings.
This character stands out among the One Punch Man manga roster for his rapid transformations and explosive power.
Orochi
The supposed King of Monsters, Orochi displayed insane shapeshifting, energy manipulation, and combat skills. He could match Saitama for a brief moment before being ultimately overwhelmed.
Despite his abilities, he remains far below the true top-tier threats. Orochi’s dynamic presence makes him one of the most memorable villains in the strongest One Punch Man characters list.
Flashy Flash
A speedster rivaling even the fastest monsters, Flashy Flash is not just quick but also an exceptionally skilled assassin.
- He took on two Dragon-level threats simultaneously and emerged victorious.
- His speed and technique make him a dangerous opponent, although he lacks the sheer power of the highest-ranked fighters.
Flashy Flash was the top-ranked graduate of the Ninja Village, where assassins were trained to kill—but he defied that path, ultimately destroying the Ninja Village. This S-Class hero, apart from Bang and Genos, truly understands the real strength of Saitama, cementing his place among the One Punch Man strongest characters.
Sage Centipede
Sage Centipede towers as one of the most fearsome monsters ever encountered.
With its colossal, multi-segmented body and regenerative abilities that defy explanation, this enemy has long been hinted at before making its dramatic appearance.
Its relentless aggression and capability to tear through entire landscapes have cemented its place as a brutal force—even among the top One Punch Man characters.
He came to find his long awaited rest by the serious punch of Saitama which not even Blast the No. 1 hero was able to give him.
Tatsumaki
Tatsumaki, the Tornado of Terror, is a powerhouse among the S-Class heroes.
- Possessing unmatched telekinetic and psychokinetic abilities, she can effortlessly manipulate her surroundings—lifting entire buildings and deflecting devastating energy blasts.
- Her mental fortitude and command over her powers make her one of the most formidable One Punch Man characters.
Evil Ocean Water
Evil Ocean Water stands out as one of the more bizarre yet terrifying entities in the One Punch Man roster.
What starts as a sentient mass of water evolves into a colossal threat after absorbing vast quantities of its element.
Being made only of water no physical attacks affect him and was seeming like a near impossible villain to be defeated even the serious punch from Saitama only weakened it and was only killed finally when Pig God drank all of it and digest inside his body.
This transformation grants it an almost limitless adaptability and resistance, pushing it into Dragon-level threat territory—a level of power that forces even Saitama to take notice among the strongest One Punch Man characters.
Pshykos Orochi Mutant
Pshykos Orochi Mutant was the mastermind behind the creation of the Monster Association, harnessing monster cell fruit provided by God to build an army aimed at annihilating the heroes.
- In reality, Pshykos was also a gifted psychic, comparable to Fubuki and Tatsumaki—albeit not as skilled.
- After merging her psychic powers with the monster cells of Orochi, her abilities were amplified manifold, delivering one of the toughest challenges to Tatsumaki.
This villain’s evolution marks a significant turning point in the One Punch Man strongest characters saga.
Blast
The #1 S-Class hero, Blast has yet to reveal his full potential, but his abilities suggest he is one of the most formidable beings in the series.
- He can manipulate portals or wormholes, withstand attacks from cosmic-level beings, and is actively working against God.
- Notably, Blast is the first and only hero—aside from Saitama—to engage Sage Centipede, which directly drew power from God, halting a planet-threatening crisis.
Blast’s mysterious power and key role in the narrative make him a standout among the strongest One Punch Man characters.
Void Leader Of Ninja Village
Void Leader Of Ninja Village emerges as a cunning and enigmatic adversary, leading a faction from the shadows of the Ninja Village.
- Wielding mysterious dimensional powers, he can execute a devastating Dimension Slash that literally slices through reality.
- His strategic mind and ability to manipulate both allies and enemies alike make him a formidable threat, enhancing his status in the One Punch Man ranking.
Boros
The leader of the Dark Matter Thieves, Boros was the first opponent to survive multiple blows from Saitama.
- His regenerative abilities, immense strength, and planet-busting Collapsing Star Roaring Cannon place him far above most adversaries.
- However, even with such power, Boros was no match for Saitama’s decisive serious punch.
Up until other villains like God and Cosmic Garou entered the fray, Boros remained the highest planetary-level threat to Earth in the One Punch Man manga universe.
Cosmic Garou
Cosmic Garou evolved from the heroic hunter Garou, who was once a talented fighter capable of mimicking any hero’s fighting style—even Saitama’s.
- Recognizing his potential, God bestowed upon him immense power, allowing Garou to decimate humanity in an alternate timeline.
- Yet, when faced with the loss of someone dear, Garou abandoned God’s influence, leading him to guide Saitama in a time-altering battle.
Cosmic Garou’s dramatic transformation and complex character arc secure his spot among the strongest One Punch Man characters.
God
God is one of the most mysterious and near-omnipotent entities in the One Punch Man universe.
- Despite being far from the benevolent figure one might expect, God’s power has led to the monsterification of humans and monsters alike—elevating many to Dragon-level threats.
- God is also responsible for transforming Garou into Cosmic Garou and remains a formidable force against which even Blast has struggled.
As the looming final villain, God’s near-omnipotence positions him at the apex of the One Punch Man strongest characters hierarchy.
Saitama
The strongest being in the One Punch Man universe is, without a doubt, Saitama.
- He broke the space-time continuum and even traveled back in time when Cosmic Garou taught him the secrets of power.
- Saitama’s singular punch can destroy any opponent regardless of their strength.
- After a heart-wrenching loss of his friend Genos during his battle against Cosmic Garou, Saitama delivered a punch so powerful it sent his foe to the edge of the solar system—breaking the speed of light record in the process.
- He has defeated Sage Centipede, Orochi, and many other formidable adversaries.
Saitama’s limitless power and iconic strength firmly establish him as the ultimate character in the strongest One Punch Man characters ranking.
Which character do you think truly deserves the top spot? Share your thoughts in the comments below!