1. Boros - One Punch Man
Boros is regarded as the strongest villain in the anime series One Punch Man. He is the leader of the Dark Matter Thieves, possessing overwhelming strength that surpasses all other antagonists.
Although Boros was ultimately defeated by Saitama, he withstood numerous direct attacks from Saitama without showing any signs of weakness. His power is showcased through his regenerative abilities and his capacity to destroy even the Earth's surface. As the leader of an alien invasion force, Boros commands an entire armada, and his authority is absolute. For fans of One Punch Man, Boros is an unforgettable villain.


2. Meruem - Hunter x Hunter
In the world of anime, villains often take center stage, and Meruem is a prime example. With immense strength and a complex personality, he stands as the most powerful antagonist in Hunter x Hunter.
Meruem's creation stemmed from his mother absorbing thousands of Nen abilities while pregnant. As a result, he was born with near-limitless life energy, making him a force to be reckoned with. During his battle with Netero, Meruem was killed, but his inherent power did not dissipate. Instead, it multiplied exponentially and transferred to his Royal Guards, Youpi and Pouf. This shows that Meruem's strength seems almost infinite and incredibly difficult to suppress.


3. Father - Fullmetal Alchemist Brotherhood
Father is one of the most formidable villains in Fullmetal Alchemist Brotherhood. With his devastating power, he massacred a million inhabitants of the kingdom where he was trained, and even more terrifying, he absorbed their souls to become immortal.
When Father consumed the entity known as "God", his power surged to even greater heights, granting him the ability to manipulate telekinesis at a molecular level. He started his journey as an overwhelming antagonist, but through cunning and strategy, he tricked Van Hohenheim into sacrificing the people of Xerxes to create the Philosopher's Stone. With this immense power, Father transformed into a god-like being and was once again able to perform powerful alchemy.


4. Eren Yeager - Attack on Titan
Attack on Titan is one of the most popular and beloved anime series today. Among its many characters, Eren Yeager stands out as one of the most powerful and captivating antagonists.
Once a vulnerable child, Eren swore vengeance against all Titans. Under the guidance of Grisha, he gradually became the most powerful Titan, embarking on a journey of revenge. After convincing Ymir Fritz to unlock the full potential of the Founding Titan, Eren transformed into a terrifying force in Attack on Titan, capable of resurrecting Titans and commanding formidable minions. With the combined power of three Titans, Eren Yeager became one of the most fearsome villains in the series.


5. All For One - My Hero Academia
All For One is undoubtedly one of the most formidable villains in My Hero Academia. He is both the ally and the greatest adversary of All Might, only confronting him directly in the final battle. Numerous skilled heroes have fallen before All For One, and even All Might was pushed to his absolute limits to defeat this terrifying foe.
All For One is the complete antithesis of All Might, serving as the arch-nemesis of the hero. He possesses the terrifying ability to steal the powers of others with a mere touch and can use any ability he has previously acquired. All For One is undeniably a fearsome and haunting villain, leaving a lasting impact on all who encounter him.


6. Light Yagami - Death Note
Light Yagami is widely recognized as one of the most powerful villains in anime, wielding the deadly Death Note to kill hundreds, if not thousands, of people. A brilliant high school student from Japan, Light grew disillusioned with the world around him, seeing it as corrupt and flawed. This led to his acquisition of the Death Note, a notebook that grants its owner the ability to kill anyone by writing their name in it.
Driven by a desire to reshape the world, Light uses the Death Note to eliminate criminals and society's undesirables. Despite the mass killings, Light never considers himself evil. He believes that by eradicating crime, he is bringing peace and justice to the world. This self-righteous mindset transforms him into a villain in the eyes of many.


7. Gilgamesh - Fate
Gilgamesh is one of the most formidable villains in the Fate series. Known as an unbeatable god, he can only be defeated by the 'belief' of the main characters.
His strength is immeasurable, as he has the ability to summon hundreds of legendary artifacts from ancient times and wield them to obliterate his enemies. However, most of Gilgamesh's defeats are due to his overconfidence and underestimation of his foes. He often dismisses his opponents and does not use his full power. Despite this, his raw strength makes him nearly invincible, and it is safe to say that he is one of the strongest villains in Fate.


8. Otsutsuki Kaguya - Naruto
In the world of Naruto, no one surpasses Otsutsuki Kaguya in terms of power and influence. She is a terrifying villain and the greatest challenge that Naruto and his team have ever faced. Kaguya's strength is comparable to that of a deity.
Not only does Kaguya possess extraordinary power, but she also wields the Three Great Dojutsu - the Byakugan, the Sharingan, and the Rinnegan. With her immense abilities and her actions, Kaguya Otsutsuki stands as one of the most dominant and influential characters in Naruto. Just mentioning her name sends shivers down the spines of Naruto fans.


9. Blackbeard - One Piece
In the world of One Piece, there are many fearsome pirates, but none have surpassed Blackbeard yet. Known as one of the Four Emperors, his real name is Marshall D. Teach. He is the only villain to have ever acquired the power of two Devil Fruits.
By possessing the Yami Yami no Mi, Blackbeard gains the ability to control darkness at will. However, this ability does not stop there—Yami Yami no Mi also grants the power to absorb other Devil Fruits from their users after their death. His second Devil Fruit, the Gura Gura no Mi, allows Blackbeard to create shockwaves so powerful that they could potentially destroy the world itself. The combination of these two Devil Fruits, along with his mastery of two types of Haki, has turned Blackbeard into one of the most terrifying forces in the One Piece universe.


10. Beerus - Dragon Ball Super
In Dragon Ball Super, Beerus is known as the God of Destruction with incredible, overwhelming power. His destructive energy is so intense that when he enters a state of rage, his internal energy envelops his body like a shroud. With all his strength, Beerus can wipe out half the universe with a mere snap of his fingers.
Although Beerus is often regarded as a villain, there is still much untapped power within him. The series reveals that Beerus has the ability to destroy the entire Universe 7. As such, no one can truly stand against the might of this God of Destruction. Beerus has the capability to obliterate Earth, destroy the solar system, or even wipe out the entire Milky Way Galaxy.

