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Every classic shonen anime adds its own spice to the antagonists' character build. These characters employ a wide array of specific techniques or abilities in an attempt to get the better of the story’s protagonist. While some rely solely on brute force to pursue their goals, others prefer a more intellectual approach, using their remarkable intelligence to realize their ambitions.

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However, even among the intellectuals, some characters may exhibit different forms of intelligence. Some may be clever fighters, while others may be strategic masterminds or even genius scientists. In rarer cases, it is possible that a single individual may possess all of these attributes and more. This list features a selection of shōnen anime villains that wield at least one of these traits and presents them in an outstanding manner.

10 Dr. Gero – Dragon Ball Z

dr gero

Dr. Gero was a genius inventor responsible for creating multiple beings with absurd power levels. He had the figure of an old man but had already transferred his body into an artificial vessel at one point in the series.

He was an important member of the Red Ribbon Army, an organization that served as one of the Dragon Ball franchises' earliest antagonistic groups—as well as the creator of Androids 17 and 18. Using his genius intellect, he also created Cell, a biological android that stands out to this day as one of the franchises' most memorable antagonists.

9 Medusa – Soul Eater

medusa manifesting her powers

While you may already be familiar with the name, as it also belongs to a prominent figure in Greek mythology, the Medusa from the Soul Eater series is a slightly different package. She is a deceitful and conniving witch capable of manipulating almost anyone for the sake of her goals.

In addition, she is excellent at careful planning and can outwit some of the DWMA’s most powerful figures. Her most remarkable exploit, however, is her success at reviving Kishin Asura, arguably the most powerful being in the series.

8 Shishio Makoto – Rurouni Kenshin

Makoto Shishio from Ruroni Kenshin

Shishio Makoto is the main antagonist of the Rurouni Kenshin series. He is a talented swordsman and successor to the former hitokiri Himura Kenshin. However, he was betrayed by the Meiji government and left severely wounded as a result. Following this cruel betrayal, he resolved to overthrow the officials left in power.

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Forming an elite group of fighters named the Juppongatana, he launched a well-planned assault on the Meiji government, which was not far from succeeding. Shishio is also a master manipulator, capable of bending people’s will effectively as long as he is aware of their desires. Additionally, he has impressive battle intelligence, as he can counter any attack he has seen at least once.

7 Donquixote Doflamingo – One Piece

doflamingo's evil smile

Known as one of the most formidable antagonists in One Piece, Donquixote Doflamingo is both a powerful and cunning individual. As the head of the Donquixote Family, he formed ties with multiple influential figures in the story, cleverly leveraging his positions whenever he deemed necessary.

Doflamingo is incredibly manipulative, provoking his opponents in cruel ways in order to achieve his objectives. Furthermore, he displayed impressive ingenuity with his Devil Fruit powers, manipulating his strings in many useful ways during his fight with Luffy. Lastly, despite his ostentatious appearance, he is capable of forming and executing carefully planned schemes.

6 Dio Brando – JoJo's Bizarre Adventure

Dio Brando (Jojo's Bizarre Adventure)

Dio Brando served as the main adversary of the Joestar Family for most of the JoJo's Bizarre Adventure series. He was once a regular human, but upon activating the Stone Mask, he abandoned his humanity and began living as a vampire.

Dio was manipulative and had an insatiable thirst for power. It was glaringly apparent in his mannerisms and remarks. Yet this unnaturally intense desire for strength served him well. Due to his willingness to resort to any means to achieve victory, he was not averse to using underhanded tactics that could possibly further his ambitions. He also amassed a large number of followers, following his orders as a result of his power and superior intellect.

5 Meruem – Hunter X Hunter

Meruem of Hunter X Hunter

Meruem is arguably the strongest being in Hunter X Hunter. However, the strength of the prideful Chimera Ant king is just one of his many impressive qualities. He is a near-perfect entity with boundless potential in almost every field.

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As a testament to his limitless possibilities, he is an extremely fast learner and does not need long to assimilate new skills. Shockingly, he defeated national chess and shogi champions after playing the respective games for less than a day. Furthermore, Meruem was able to apply acquired knowledge to different situations, as seen when he approaches the fight against Netero using his understanding of Gungi.

4 All For One – My Hero Academia

All For One from My Hero Academia

All For One is one of the premier antagonists of the My Hero Academia series. He built a reputation for himself as the embodiment of evil and the demon lord that will take over the world. Additionally, he is equipped with a quirk that allows him to steal the quirks of others, and can use multiple quirks simultaneously.

However, this sinister being does not let his abundance of power give room to complacency. He plans out events over extremely long periods and readies multiple contingencies in case of unexpected occurrences. Furthermore, he is heartlessly conniving and goes to great lengths to ensure the psychological torment of his adversaries.

3 Madara Uchiha – Naruto

Naruto Madara Uchiha reanimated during the Fourth Great Ninja War

Madara was one of the most prominent figures in the Naruto franchise, and it's clear to see why. He was one of the strongest Uchiha to have ever lived, a clan already famed for its talented ninjas. He belonged to the same generation as the first Hokage Hashirama Senju and frequently clashed with him in his prime.

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After anticipating his initial death, he put steps in place that would ensure his revival, attesting to his impressive foresight. He also possesses a good understanding of strategy and is exceptionally quick-witted on the battlefield. He can adapt to almost any situation and, as a result, can dispatch most other fighters with ease.

2 Father – Fullmetal Alchemist: Brotherhood

Father from Fullmetal Alchemist

As far as meticulous planners go, not many come close to the level of Father from Fullmetal Alchemist: Brotherhood. He is an entity that could formerly have been referred to as a simple homunculus, but he later gained a physical body, which he used to facilitate more complex schemes.

After purging all unnecessary sins from his body and giving them physical forms that usually refer to him as Father, the homunculus set out to execute his master plan. In a project that took over multiple generations to complete, Father almost successfully staged an event that would have consumed the lives of all Xerxians. He orchestrated wars, manipulated individuals, and accounted for various other factors in a way that regular humans could never hope to replicate.

1 Sōsuke Aizen – Bleach

Aizen from Bleach

Sōsuke Aizen is one of the most intimidating figures in the Bleach franchise. He initially appeared as a soft, mild-mannered man, but that persona ended up being a complete facade. Underneath, he was a manipulative and conspiring individual with next to no regard for the well-being of others.

Aizen had one goal, and he would go to great lengths to achieve it. He wished to take the place of the Soul King and become the world's supreme being. In order to achieve this, the former 5th division captain was revealed to have been conspiring for over 110 years, an unfathomable amount of time. Partly as a result, and partly due to his tactical prowess, he is commonly seen with multiple plans ready to go. He is hardly ever fazed due to consistently accounting for different situations and is capable of effectively manipulating people however he wishes.

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