Carlo Rambaldi and his team mechanized the iconic Geiger alien head design. He was also responsible for the sandworms in Dune and the aliens from Close Encounters of the Third Kind (Monster Legacy Archive)
Sigourney Weaver as Ripley, the Warrant Officer aboard the Nostromo and Jones, the damn cat. (Alien) <--- Wth you got against Jones the cat? Jones the cat handles aliens better than anyone. Jones the cat is awesome.