Like Paul Phoenix, Yoshimitsu and Heihachi Mishima, Nina has appeared in every Tekken game and is thus the only female to have done so.
Nina was also voiced by Yumi Touma in the earlier Tekken games. While there has been a good deal of Voice Actresses voicing Nina Williams, the most noteworthy of all Nina voice actresses has to be Lisle Wilkerson, who has been voicing Nina in Tekken 4 and Tekken 5. The game received mixed reviews by critics, but found more acceptance among fans of the Tekken series. It was released in Japan in January 2005, North America in February 2005, and Europe in April 2005. Nina also stars in her own action/strategy game, Death by Degrees. During those years of Cryogenic sleep, she was pregnant and gave birth to Steve Fox (who has appeared in Tekken 4 and Tekken 5). They are experimented upon for 15 years (that is the reason why Nina and her sister both remain so young during the many years of the tournaments). During the end of Tekken 2, Nina and Anna undergo Cryogenic Sleep. She has a rivalry with her younger sister, who is named Anna Williams. Nina has a lethal fighting style, consisting of throws, grapples, and holds. She is the cold-blooded assassin that made her first appearance in the original Tekken game, Tekken, and has appeared in every Tekken ever since. Nina Williams is a character from the Tekken games.