Though often thought of as primarily a male vehicle, the film noir offered some of the most complex female roles of any movies of the 1940s and 1950s. Stars such as Barbara Stanwyck, Gene Tierney and Joan Crawford produced some of their finest performances in noir movies, while such lesser known actresses as Peggie Castle, Hope Emerson and Helen Walker made a lasting impression with their roles in the genre. These six women and 43 others who were most frequently featured in films noirs are profiled here, focusing primarily on their work in the genre and its impact on their careers. A filmography of all noir appearances is provided for each actress.