Sigourney Weaver naked, topless, fappening, leaked photos. Sigourney Weaver is an American actress and film producer. Following her film debut as a minor character in Annie Hall, she quickly came to prominence in 1979 with her first lead role as Ellen Ripley in Alien, subsequently reprising the role in its three sequels: Aliens (1986), for which she was nominated for an Academy Award Best Actress; Alien 3 (1992), and Alien: Resurrection (1997).