Describe Sigourney Weaver here....Not as easy as you might think. Star of the Alien movies, making her one of a few actresses (and inarguably the first) who is believable in a heavy action role. She even got nominated for an Oscar for Best Actress for the second movie, Aliens. Yes, a sci-fi/action/horror film, something that then and now is practically unheard of.Her reprisal of the Ripley character is culturally significant; although mothers in films were respected before Aliens, after Ripley's courageous rescue of Newt from the taloned grasp of the Alien Queen in 1986 filmmakers began taking mothers seriously as warriors. Weaver also holds a Black-Belt in Goju-Ryu karate, so she is not a Mama Bear with whom you'd want to mess with in Real Life either.Also played Dana Barrett in Ghostbusters and its sequel, anthropologist Dian Fossey in the film adaptation of Fossey's book Gorillas in the Mist (for which she got another Best Actress nomination; she also got a Best Supporting Actress nomination the same year for Working Girl), and Grace Augustine in Avatar. She also plays The Director in The Cabin in the Woods. In 2012 she starred as an academic professionally debunking alleged paranormal activities in Red Lights.Currently slated to star in Political Animals, a USA Network miniseries centering on a Secretary of State who could not more obviously be a redheaded version of Hillary Rodham Clinton.Her real name is Susan Alexandra Weaver. She's the daughter of Sylvester Weaver, who was a television pioneer and the creator of Today.