Sigourney Weaver

Sigourney Weaver (born October 8, 1949) is an American actress. She is known for her role of Ellen Ripley in the four Alien films: Alien, Aliens, Alien 3, and Alien Resurrection, for which she has received worldwide recognition. Her only Disney role so far is voicing Axiom's computer in the 2008 Pixar film WALL-E.