One Punch Man: Strongest Characters

Key Takeaways

• One Punch Man boasts a diverse cast of characters with varying levels of strength and abilities.
• Ranking allows for comparison between characters; fights highlighted by small power level differences are exciting.
• The series features powerful characters like Saitama, Tatsumaki, Boros, and Blast, each with unique strengths and abilities.

One Punch Man is an action-focused manga series that follows the adventures of Saitama. The plot of the manga seems rather simple at first. But after some time, it becomes clear that there are many more complex layers.

While Saitama is impressive in his own right, there are other One Punch Man characters who also possess incredible strength. These characters have shown that they are capable of performing amazing feats. Like in any manga, the power levels of the characters have increased with the progress of the story.

Updated on November 25, 2024: One Punch Man is one of the few shonen titles that is filled to the brim with powerful characters. These individuals are equipped with deadly abilities that make them a nuisance to fight against. While there is no shortage of dangerous individuals, there is a discrepancy between their power levels.

The top fighters in the series are separated by fine margins. Due to this reason, the fights between them are always incredibly exciting to watch as they get the opportunity to put their abilities on display. To make things easier for readers, the list has been updated with more information about the most notable ability of each character.

14 Bang

An Elite Martial Artist

• Affiliation: Heroes
• Martial Artist with a special style

Bang is an elite martial artist who served in the Hero Association. He was ranked as the third-strongest hero within the organization, only behind Blast and Tatsumaki. Bang’s style of fighting revolved around the Water Stream Rock Smashing Fist, which he had created after a great deal of effort.

Despite being old, Bang was able to demolish Dragon-level threats almost effortlessly. He could even smash meteor chunks with his bare hands. Additionally, he had immense speed and reflexes, allowing him to blitz his opponents and dodge their attacks.

Biggest Strength: Bang’s is a skilled martial artist who has proven that age is just a number. The S-Class hero has demolished numerous threats with his bare fists, and his feats have earned him the respect of his peers. If Bang was younger, he would have held a higher rank.

13 Overgrown Rover

Could Fire Lethal Energy Blasts

• Affiliation: Villains
• Enhanced physical traits

Overgrown Rover was an executive member of the Monster Association. It was the only member who did not behave in an openly hostile manner towards the heroes. Overgrown Rover’s feral side only took over whenever it was attacked by another individual. Once angered, it couldn’t distinguish between friend and foe.

It could fire energy blasts that were potent enough to incinerate the toughest objects. Overgrown Rover was able to withstand a blow from Saitama, which is a testament to its resilience. Overgrown Rover’s other physical abilities were equally impressive. It possessed immense speed, strength, and enhanced senses.

Biggest Strength: Overgrown Rover might not have the same level of intellect as the other monsters, but there is no denying that his physical traits are not only bettered by a handful of characters. With its enhanced speed and power, not many characters can stand their ground against this monster.

12 Flashy Flash

Overwhelmed Opponents With Speed

• Affiliation: Heroes
• Incredible pace that can only be matched by few

Flashy Flash is an S-Class hero who is renowned for his speed. He can cut down his opponents before they even have the chance to react. Flashy Flash’s speed also helps him to avoid enemy attacks. Aside from his pace, Flashy Flash possesses superhuman strength and endurance.

He has beaten Dragon-level threats on his own, which is extremely impressive considering how durable their bodies are. Flashy Flash’s endurance is nothing to be scoffed at either. While fighting Gale Wind and Hellfire Flame, he was able to withstand multiple blows from them.

Biggest Strength: Flashy Flash is not just one of the strongest characters in One Punch Man, but he is also among the fastest. Due to his speed, Flashy Flash can end most fights in seconds.

Armed With A Plethora Of Scientific Weapons

• Affiliation: Heroes
• A genius with nearly unlimited resources

Metal Knight is an S-Class Rank 4 hero, which automatically makes him one of the strongest characters in One Punch Man. His real name is Bofoi, and he is an old man. He managed to climb through the ranks with his genius-level intellect. Very few people know about Bofoi, as he uses robots to keep his identity hidden.

Bofoi has created multiple weapons and other pieces of technology, and he has supplied the Hero Association with both. Bofoi, or Metal Knight, is considered to have enough weaponry to take down any hero by himself. However, he has yet to show off his true power to the audience.

Biggest Strength: Bofoi is skilled at deception, so barely anyone knows about his true powers. However, it has been revealed that he has access to many potent weapons.

10 Platinum Sperm

Could Combine To Become Stronger

• Affiliation: Monsters
• One of the fatest beings in the series

Platinum Sperm is the most powerful form of Black Sperm. It is made up of trillions of cells, so it has a higher cell count than Golden Sperm. Platinum Sperm was able to go toe-to-toe with Flashy Flash, a strong S-rank hero.

Platinum Sperm overpowered Flashy Flash rather easily, and he was even able to put up a good fight against Garou. However, Garou’s drastic increase in power enabled him to take down Plantinum Sperm, leaving Black Sperm in an extremely weakened state.

Biggest Strength: Platinum Sperm’s physical strength was nothing to scoff at, but his trump card was his speed. He was able to blitz Flashy Flash, a hero renowned for his speed. At the peak of his powers, Platinum Sperm was able to cover vast distaces in mere miliseconds.

9 Sage Centipede

Durable Exoskelteon Protected It From All Manner Of Attacks

• Affiliation: Monsters
• Had a rigid defense

Sage Centipede was an enormous monster who fought against Blast. It was much bigger than the Elder Centipede, who was a fearsome monster in its own right. Sage Centipede was a Dragon-level monster, and it was unleashed by God upon the people of the world. God wanted Sage Centipede to destroy the person who had turned against them.

Sage Centipede’s size made it an incredibly dangerous opponent. It was capable of causing immense damage to its surroundings with minimal effort. It was eventually taken down by Garou.

Biggest Strength: The Sage Centipede had excellent offensive and defensive abilities. Its exoskeleton protected it from incoming attacks, after which it would kill the opponent by simply devouring them or crushing them with its body.

8 Evil Ocean Water

Had Almost No Weak Points

• Affiliation: Monsters
• Almost had no vulnerabilities

Evil Natural Water was a Dragon-level mysterious being, and it was a member of the Monster Association. Evil Natural Water had no mind of its own, and it only sought to cause destruction. It was created due to Psykos’ experiments, but it was impossible to tame it, so it was kept contained.

After being released, it absorbed an ocean and became Evil Ocean Water. It didn’t take long for the monster to show off its power by overwhelming several A-rank heroes. Since it didn’t have any organs, it was extremely difficult to hurt Evil Ocean Water.

Biggest Strength: The absence of organs effectively made Evil Ocean Water invincible. Only those who had more physical strength could hurt the monster.

7 Psykos-Orochi

Had Enough Power To Destroy The Earth

• Affiliation: Monsters
• Psychic powers were off the charts

Psykos and Orochi combined to give rise to an entity capable of causing problems for several S-rank heroes. The two fused after Orochi was defeated by Saitama. The monster used his ability to absorb others to merge with Psykos. The fusion of the two villains had enough firepower to slice the earth’s surface.

Psykos-Orochi also had the ability to regenerate, allowing it to tank massive amounts of damage without worrying about being heavily injured. Psykos-Orochi also had psychic powers, and they were powerful enough to force Tatsumaki to become serious.

Biggest Strength: Psykos-Orochi had access to a great deal of psychic and physical power. If Tatsumaki had not stopped them, the earth would have suffered irreparable damage.

6 Tatsumaki

Best Esper In The Series

• Affiliation: Heroes
• Has balanced offense and defnse

Tatsumaki is by far the strongest esper in the series. She has taken down many strong opponents who claimed to be better. Tatsumaki can use her psychic powers in various ways. She can use it to lift massive objects without breaking a sweat.

​​​​​​Tatsumaki can also use it to fly through the air and create shields to block the attacks of enemies. Tatsumaki was able to overwhelm Pyskos-Orochi, a fusion of two of the strongest members of the Monster Association.

Biggest Strength: Tatsumaki has been engaged in many battles, but she has managed to persevere through her psychic abilities. Aside from shielding herself from damage, she can use psychic powers to turn her opponents to a pulp.

5 Cosmic Garou

Punches Emitted Radiation

• Affiliation: None
• Can steal special moves in minutes

Garou used to be a student of Silver Fang. He trained under the S-rank hero for a long time and eventually decided to ditch the place and start attacking all the heroes. Garou is not an evil character, but he has done some pretty outrageous things.

Garou is exceptionally talented, and it is reflected in his refined fighting style. Garou’s most noteworthy power is his ability to grow in a fight. This allows him to overwhelm his opponents rather easily. Garou reached the pinnacle of his power when God bestowed their power upon him. For a limited period of time, Garou was able to withstand Saitama’s assault.

Biggest Strength: Like Saitama, Garou has insane potential. He is also a quick learner who can successfully replicate a complex technique after watching it in action just once.

4 Boros

A Champion From Decimated Entire Planets

• Affiliation: None
• Destroyer of many celestial objects

Boros was an extraterrestrial who conquered many planets with his might. During his travels, Boros had the opportunity to fight many strong opponents, but none of them could measure up to him. Like Saitama, Boros eventually grew bored because of the lack of competition.

Boros was armed with tremendous speed and destructive power. Once he unleashed his complete power, Boros could vaporize everything in his path. Boros’ regenerative abilities were also impressive; he could grow his limbs in a matter of seconds. Needless to say, Boros would have decimated the earth if it weren’t for Saitama.

Biggest Strength: The biggest advantage that Boros had over his opponents was his regeneration. It didn’t matter if he lost an arm, a leg, or half of his body, as he could simply regenerate.

3 Blast

Has Power & Speed

• Affiliation: Heroes
• Has enough power to go against God

Blast is the highest-ranked S-class hero. He is highly respected within the Hero Association for his services. Blast has been away from the spotlight for quite some time, and he only made his proper appearance in the Monster Association arc.

​​​​​​In the arc, Blast was able to fight against Garou, who had received a major power boost from God. Blast also managed to outspeed Flashy Flash, a character who is known for his speed. There are still aspects of his strength that have not been made clear, but that will change in the future.

Biggest Strength: Blast has the power to open portals, which he can use to travel to other locations almost instantly. This, combined with his insane physical traits makes him the strongest S-Class hero in the series.

2 God

Armed With Mysterious Abilities

• Affiliation: None
• Likely has the power to destroy the earth

God is the mysterious entity who has only appeared a handful of times in the story. They have not revealed their true identity, but fans can expect them to play a crucial role in future arcs. God has not shown what they are capable of, but there are a few pieces of evidence that, when strung together, give a good idea about their strength.

God has already fought against Blast (the number 1 S-rank hero) and managed to survive. After sharing a small part of their power with Garou, the latter gained an insurmountable amount of power. Garou’s mere punches emitted radiation, so the entity that shared their power must be indefinitely more powerful than him.

Biggest Strength: God’s powers have not been disclosed yet, but they are likely endowed with insane abilities. After all, those who receive a fragment of their power end up becoming worldwide threats.

1 Saitama

Has Unlimited Potential

• Affiliation: Heroes
• Uncapped potential

Saitama is without a doubt the strongest character in One Punch Man. The bald protagonist has mesmerized the audience with his jaw-dropping accomplishments. Saitama’s physical abilities are far superior to any other character’s. He has insane speed and reflexes, which allow him to dodge all kinds of attacks.

Saitama’s ridiculous strength enables him to take down the most powerful monsters with a single punch. The combination of his speed and strength has enabled him to take down individuals who were able to destroy planets. Saitama’s biggest strength is his ability to grow in a fight; even Garou was surprised by how quickly he could improve. Saitama’s only weakness is that he is too dense at times, which can cause some problems.

Biggest Strength: Saitama has no limit on his potential, so he grows stronger after every fight. Due to this reason, other fighters can never catch up to him, no matter how much they try.