10 mortal anime characters who are almost invincible

Action and battle anime often show invincible anime characters who are major characters in their respective series. Even though most of them are not immortal, they hone their skills in their lifetime and either remain undefeated most of the time or require unusual prowess to defeat them.

Anime characters who are invincible generally fall into several categories: overpowered protagonists, strongest fighter who guides the protagonist, or overpowered antagonists who form an alliance formed by the protagonists' defeat. One of the best things about such characters is the creative way they use their skills to become the strongest.

Disclaimer: This list is not ranked and solely reflects the writer's opinions. It contains spoilers for the respective series.

Gojo, Kaguya, and 8 other invincible anime characters

1) Saitama (One Punch Man)

Saitama as seen in One Punch Man (Image via Madhouse)

Saitama, the protagonist of One Punch Man, has attained the ability to defeat his opponents with one punch. However, he is unable to fill the thrill of his battles as his opponents go down too quickly. With Genos as his disciple, Saitama joins the Hero Association to chase his dream of becoming a hero.

Saitama is one of the strongest anime characters who defeats opponents with ease. He has never been defeated in a fight after he trained for three years and gained his superhuman strength and abilities.

2) Kaguya Otsutsuki (Naruto)

Kaguya is one of the invincible anime characters (Image via Pierrot)

Kaguya Otsutsuki is one of the strongest characters in Naruto. She came to Earth from another world and became the first wielder of chakra as she consumed the God Tree fruit. She developed a god complex and believed that she could bring peace to the world.

As one of the nearly invincible anime characters, Kaguya shows otherworldly powers alongside her chakra prowess, ninjutsu, and more. She demonstrates exceptional combat skills and can absorb any kind of jutsu, exhibiting that it requires lots of effort to seal her physical form.

3) Sosuke Aizen (Bleach)

Aizen as seen in the Thousand-Year Blood War arc (Image via Pierrot)

Aizen served as a Shinigami officer for over a century before defecting. He was the former captain of the 5th Division of the Gotei 13. His ultimate goal was to overthrow the Soul King. He is a genius strategist and scientist, portraying exceptional intellect. Aizen is one of the invincible anime characters, though he was ultimately defeated by Ichigo.

4) Guts (Berserk)

Guts is one of the strongest anime protagonists (Image via Young Animal)

Guts is one of the strongest anime characters who possesses the exceptional skills to wield the Dragon Slayer. Born out of the corpse of his mother, he has experienced endless tragedy and ultimately developed trust issues and built walls around him that took a lot of time to break down.

Guts exhibits exceptional swordsmanship and battle tactics. As a fighter on the battlefield for around two decades, Guts has become one of the strongest warriors. Furthermore, he possesses extraordinary willpower and is ready to sacrifice parts of his body to achieve his goal.

5) Satoru Gojo (Jujutsu Kaisen)

Satoru is the strongest sorcerer of the present time in JJK (Image via MAPPA)

Satoru Gojo is the strongest sorcerer of Jujutsu Kaisen. As one of the only four special-grade sorcerers, he possesses the Six Eyes and the innate technique of Limitless. He has an immense amount of cursed energy and applies his skills to make Limitless one of the strongest techniques.

Gojo is an almost invincible anime character. Since the beginning of the timeline of Jujutsu Kaisen, Gojo is always seen to defeat opponents using his sheer amount of cursed energy and even coming back from his near-death experience to defeat Toji. It took not only Sukuna's innate technique but also Megumi's Ten Shadows to defeat Gojo.

6) Alucard (Hellsing Ultimate)

Alucard as seen in Hellsing Ultimate (Image via Madhouse)

Alucard is one of the protagonists of the Hellsing series. He is the strongest vampire and Hellsing Organisation's Trump Card. However, he only answers and obeys the orders from the Hellsing Organisation.

As the most powerful vampire in Hellsing, Alucard has superhuman, telekinesis, hypnosis, shape-shifting, and weather-manipulating abilities, among many others. He is one of the strongest anime characters who can effortlessly defeat opponents without lifting his seal.

7) Diavolo (JoJo's Bizarre Adventure: Golden Wind)

Diavolo's stand makes him nearly invincible (Image via David Production)

Diavolo is the main antagonist of Golden Wind. His main goal is to eliminate every trace of his past, even if it means killing his daughter Trish. As the boss of Passione, Diavolo believes that his past should be eliminated for his growth as a human.

He has two personalities - Diavolo and Doppio. However, it is Diavolo who can use his Stand, King Crimson, to its full potential. The physical prowess and the ability to erase time for 10 seconds make King Crimson an extremely powerful Stand. Furthermore, the desire to execute his plan at all costs makes Diavolo one of the invincible anime characters.

8) Levi Ackerman (Attack on Titan)

Levi as seen in Attack on Titan (Image via MAPPA)

Levi was introduced in Attack on Titan as humanity's strongest soldier. As an Ackerman, he possesses exceptional physical strength and combat skills. Levi's tragic past in the Underground and Kenny's training are reasons why he strived to become one of the invincible anime characters.

Outside the walls, Levi has always exhibited his combat skills as the strongest, always killing Titans with ease. Though he has suffered the loss of his companions, he has always defeated Titans, killing Zeke as promised to Erwin.

9) Monkey D. Luffy (One Piece)

Luffy as seen in One Piece (Image via Toei Animation)

The protagonist, Luffy, of the longest ongoing manga, is the strongest of the Straw Hat Pirates. His accomplishments as a young pirate are unmatched. He has extended his powers in a short period and earned victory against powerful opponents like Warlords and Emperor.

After eating Gomu Gomu no Mi (or Hito Hito no Mi, Model: Nika), Luffy gained elastic properties in exchange for the inability to swim. After 10 years of training, Luffy has become one of the invincible anime characters, earning the trust of powerful allies in Straw Hat Pirates.

10) Shigeo Kageyama (Mob Psycho 100)

Mob as seen in Mob Psycho 100 (Image via Bones)

Mob, the protagonist of Mob Psycho 100, is the strongest esper of the series. He restricts himself from reaching 100% of his emotions due to his brother's injury during their childhood. Mob's mentor, Arataka Reigen, is unlike any other anime mentor as he lacks psychic powers.

Among invincible anime characters, Mob exhibits his potential as an antagonist in the final arc of the anime. It took the efforts of his friends and allies to bring him back to his senses to avoid further destruction.

Final thoughts

Anime characters who are mortal but invincible show unique ways to apply their powers in battle, providing intriguing world-building elements. Whether they are protagonists, mentors, or antagonists, their battles are always exciting to watch, as they are either born with it, but most of the time, they undergo harsh training to become invincible.