Anime Villains Who Were Never Meant to Be Popular—But Became legendary

Antagonists are typically designed to be obstacles for the protagonist to overcome and eventually defeat. Writers often create these characters with the intention of disposing of them quickly to move the plot forward. Audiences sometimes latch onto a villain’s design or personality so strongly that the creator is forced to change their plans. These unplanned fan favorites frequently evolve into anti-heroes or permanent cast members due to their overwhelming popularity.

Vegeta

This Prince of Saiyans was originally created to be a ruthless invader who would eventually perish after his defeat on Earth. Akira Toriyama intended for him to be a passing threat to establish the stakes for the upcoming conflicts in ‘Dragon Ball Z’. Fan reception forced the creator to reconsider his fate and integrate him into the main cast as a reluctant ally. His journey from a cold-blooded killer to a family man became one of the most celebrated character arcs in anime history.

Hiei

Hiei appeared early in ‘Yu Yu Hakusho’ as a generic villain who kidnapped a main character for selfish gain. Yoshihiro Togashi planned to write him out of the story permanently after his initial defeat by Yusuke Urameshi. The editorial department noticed the immense popularity of the character among readers and encouraged the author to bring him back. He subsequently became a core member of the spirit detective team and remained a fan favorite throughout the series run.

Sesshomaru

The powerful demon lord initially served as a cruel antagonist and a contrast to his half-brother Inuyasha in the series ‘Inuyasha’. Rumiko Takahashi designed him to represent the barrier the protagonist had to overcome regarding his heritage. His elegant design and stoic demeanor attracted a massive fanbase that demanded more screen time for the dog demon. He eventually evolved into a complex anti-hero who protects a human child while maintaining his cold exterior.

Grimmjow Jaegerjaquez

Tite Kubo introduced this Arrancar in ‘Bleach’ as part of a group intended to be defeated relatively quickly by the heroes. His rebellious attitude and visceral fighting style resonated strongly with the audience during his initial appearances. The creator decided to spare him from an early death to facilitate a deeper rivalry with the protagonist Ichigo Kurosaki. Grimmjow survived the arc to make future appearances due to his enduring popularity among the readership.

Itachi Uchiha

Masashi Kishimoto first conceptualized Sasuke’s brother in ‘Naruto’ simply as a villainous motivation for the young ninja’s desire for revenge. The author later expanded the backstory to reveal a tragic history that recontextualized all his previous actions as sacrifices. This narrative twist transformed him from a hated mass murderer into a beloved martyr figure within the fandom. Itachi consistently topped popularity polls even long after his character had perished in the timeline.

Seto Kaiba

The arrogant CEO was originally a one-off character based on a collectible card gamer the author Kazuki Takahashi had met in real life. His obsession with power and cards in ‘Yu-Gi-Oh!’ was meant to serve as a single lesson for the protagonist Yugi Muto. Readers found his over-the-top personality entertaining enough that he returned as the primary rival for the duration of the franchise. His dragons and gadgets became as iconic as the main character’s puzzles.

Jessie, James, and Meowth

These bumbling operatives were tasked with stealing Pikachu in almost every episode of the ‘Pokémon’ anime adaptation. They were initially designed as somewhat competent threats before settling into their roles as comedic relief who constantly fail. Their tearful backstories and genuine friendship endeared them to viewers who appreciated their persistence despite endless defeats. They became so integral to the show that they remained arguably more consistent than the protagonist’s own rotating team of companions.

Hisoka Morow

Yoshihiro Togashi created this magician in ‘Hunter x Hunter’ to act as a creepy and chaotic wild card during the Hunter Exam arc. His morally ambiguous nature and obsession with fighting strong opponents made him unpredictably captivating to watch. He frequently aids or hinders the protagonists based solely on his own whimsical desires rather than a grand evil plan. This unique dynamism cemented his status as one of the most recognizable antagonists in the genre.

Viral

This beastman commander began his role in ‘Gurren Lagann’ as a generic enemy meant to showcase the heroes’ growing strength. Director Hiroyuki Imaishi initially planned for him to be a temporary obstacle who would eventually fade away. His intense rivalry with Kamina and refusal to give up made him incredibly popular with viewers. The writers adjusted the story to include him as a pivotal pilot and ally during the final intergalactic battles. He evolved from a simple grunt into an immortal guardian of humanity’s future.

Gilgamesh

This ancient king appeared in ‘Fate/stay night’ as an arrogant antagonist who possessed overwhelming power and disdain for modern humans. Type-Moon writers intended him to be the final hurdle for the heroes but underestimated how much fans would enjoy his charisma. His immense ego and flashy combat abilities made him the breakout star of the franchise across multiple adaptations and games. He now appears frequently in spin-offs where he sometimes takes on a protagonist role.

Tell us which accidental fan favorite is your top pick in the comments.