Nina Williams is a prominent character in the Tekken series, known for her deadly assassin skills and cold demeanor. She is the older sister of Anna Williams, with whom she shares a fierce sibling rivalry. Nina's fighting style is a blend of Aikido and Bone Martial Arts, making her both graceful and lethal. Throughout the Tekken series, she has been involved in various storylines, often acting as a mercenary or agent. Nina is also known for her distinctive blonde hair and signature blue outfit, making her a fan favorite.