However, they couldn’t have been more wrong. There are many characters in Attack on Titan who pose a huge threat to other people. They are ruthless, cold-hearted individuals who do not care about the welfare of other people. To put it simply, they are more dangerous than the Titans.

8 Eren Yeager

Eren Yeager is the main character of the series. At the beginning of the story, Eren seemed like a very nice person, who cared about his friends and the other people who existed inside the walls. No one was prepared for his transformation midway through the story.

Eren turned into a ruthless monster who did not care about the consequences of his actions. While he was pretending to be an injured Marleyan soldier, he was actually trying to force the Survey Corps to attack the land. His actions forced Armin and the other Survey Corps members to attack, resulting in the deaths of hundreds of innocent people. Eren’s lack of morals makes him a truly fearsome character.

7 Yelena

Yelena was Zeke’s most trusted companion. She was the one who initiated contact with the Survey Corps, which allowed Zeke to take his plan to the next level. Yelena’s aim was to ensure that everything went according to Zeke’s plan.

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She was a calm and collected person, which meant that she did not let her emotions get in the way of her duty. Yelena’s fervent devotion to Zeke would often cause her to make big decisions. If she suspected a person of betrayal, she did not hesitate to kill them.

6 Kenny Ackerman

Kenny Ackerman was Levi’s uncle and the captain of the Anti-Personnel Control Squad. He was a malevolent individual who had no regard for human life.

Kenny was a talented fighter, and he even helped Levi to learn some life skills. However, he was an innately evil person. No matter what, he would always revert to his malicious ways. Kenny’s thirst for battle was only bettered by his greed to attain more power. Eventually, that’s what led to his death.

5 Rod Reiss

Rod Reiss was Historia’s father and the real king of the Walls. To stay out of danger, Rod placed a puppet king on the throne. Rod Reiss was an incredibly dangerous man, who would push other people under the bus to save his skin.

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As the ruler of the walls, Rod Reiss had a great deal of authority, and he could punish any person in any way that he deemed fit. He did not even care about Historia’s well-being. He was only being considerate because he wanted to use his daughter to gain the power of the Founding Titan.

4 Annie

Annie possesses one of the seven Titans; namely, the Female Titan. She was the main antagonist of the first season of Attack on Titan. As a Titan with cognitive abilities, it was extremely difficult for the members of the Survey Corps to deal with her. She could move and attack more quickly than the regular Titans.

During the mission to capture Annie, the Survey Corps used their best fighters. Many cadets tried to attack her, but she swatted them like flies. It was truly frightening to see humans getting killed left, right, and center. Annie was responsible for two of the scariest moments in the first season. The first was when she lifted the hood off Armin, and the second was when she slaughtered multiple Survey Corps members with a single strike.

3 Reiner

Reiner is a complicated character. Throughout the series, Reiner was struggling to deal with his inner demons. When he was sent to Paradis Island, his mind was clear and he knew what he had to do, but after spending so much time in the Survey Corps, Reiner’s willingness to hurt the people came down a notch.

Reiner became conflicted and wondered whether he was a member of the Survey Corps or a Warrior for Marley. This constant struggle made him unstable, and it made him a truly fearsome character.

2 Zeke

Zeke was the first son of Grisha Yeager. He was raised by Grisha to help the Eldians in their struggle for freedom against Marley. Instead, Zeke ended up becoming a Warrior for Marley and inheriting the power of the Beast Titan. Unbeknownst to the people around him, Zeke was secretly planning to help the Eldians.

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Zeke’s plan was to use the power of the Founding Titan to make every Eldian sterile, as he considered this to be the easiest way to stop their suffering. Zeke was a very manipulative individual who would use his oratory skills to make others do his bidding. He sacrificed countless members of the Survey Corps by turning them into mindless Titans, and he didn’t have a single shred of remorse.

1 Fritz​

​​​​King Fritz was an Eldian king who was known to be cruel and ruthless. He only cared about attaining more power, and he did not care if it came at the cost of the lives of others. His hunger for power peaked when he found out about Ymir and her ability to transform into a Titan.

Fritz believed that Ymir’s powers would help him become the most powerful man in the world. When Ymir died, Fritz ordered his daughters to consume their mother’s dead body. Fritz also had the tendency to become extremely violent; he would beat and mutilate slaves. As he was the king, no one could oppose him. All these things made King Fritz one of the most fearsome individuals in the series. ​​​​​​

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