
Sigourney Weaver became a star in 1979 as warrant officer Ellen Ripley in Ridley Scott's Alien, a rare female action lead. She reprised the role in 1986's Aliens, earning an Academy Award nomination and redefining the sci-fi heroine.
The daughter of a television executive and an actress, she trained at the Yale School of Drama. A blink-and-miss role in Annie Hall preceded her breakout.
Alien made her a star in 1979 and gave science fiction a tough, resourceful female lead. She returned to the role across three more films over two decades.
She earned three Oscar nominations in the 1980s across action, drama, and comedy. James Cameron later cast her in the Avatar films, among the highest-grossing of all time.
Portrait: Harald Krichel · CC BY-SA 4.0 · via Wikimedia Commons