Ellen Louise Ripley, often referred to simply as Ripley, is a fictional character and protagonist of the Alien film series, played by American actress Sigourney Weaver. The character earned Weaver worldwide recognition, and the role remains her most famous to date. Ridley Scott, director of the first film in the series, Alien, made the decision early in production to switch Ripley from a standard male action hero to a heroine.

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