Ansem

Ansem is a significant character in the Kingdom Hearts video game series, primarily serving as an antagonist. Initially introduced as the seeker of darkness, Ansem is revealed to be the Heartless of Xehanort, a powerful Keyblade wielder. This entity seeks to plunge worlds into darkness to uncover the secrets of Kingdom Hearts, a primordial source of all hearts. Ansem manipulates and corrupts individuals, most notably Riku, to achieve his goals. He is a master of darkness and wields a powerful Keyblade, capable of wielding dark energy. Throughout the series, Ansem's actions drive much of the conflict, forcing the protagonist Sora to confront him and his machinations. His ultimate aim is to unlock the power of Kingdom Hearts for his own nefarious purposes, often by gathering the hearts of others. While initially presented as a singular villain, later installments reveal the complex origins of Ansem and his connection to other key Xehanort entities, adding layers to his role in the overarching narrative of the Kingdom Hearts saga. His defeat is a pivotal moment in the early games, though his influence continues to be felt through the actions of other characters.