Anna Williams (アンナ・ウィリアムズ An'na Wiriamuzu?) is a character in the Tekken series. She was introduced in the first Tekken game as the younger sister of Nina Williams, and has returned in almost every subsequent game (with the exception of Tekken 4). She is an assassin trained in various martial arts, and almost always appears in her trademark red silk dress and/or a blue version of it.