Ophelia is a major antagonist in the anime and manga series 'Claymore.' She is a Claymore warrior, ranked number four among her peers, known for her sadistic and unstable personality. Ophelia takes pleasure in fighting and often demonstrates cruelty towards both humans and fellow Claymores. Her tragic backstory and eventual awakening into a monstrous form make her a complex and memorable character. Throughout her arc, Ophelia serves as both a rival and a catalyst for the protagonist, Clare, pushing her to new limits.