Nina Williams is a fictional character from the popular video game series Tekken. She is known for her skills as an assassin and her complex backstory, which includes a rivalry with her sister, Anna Williams. Nina is often depicted wearing tactical outfits and is recognized for her agility and combat abilities. First introduced in the original Tekken game in 1994, Nina has appeared in multiple installments of the series. Her character has evolved over time, showcasing various fighting styles and techniques. Nina's role often involves themes of betrayal, revenge, and family conflict, making her a compelling figure in the Tekken universe.