Susan Alexandra "Sigourney" Weaver is an American actress. A figure in science fiction and popular culture, she has received various accolades, including a British Academy Film Award, two Golden Globe Awards, and a Grammy Award, in addition to nominations for three Academy Awards, four Primetime Emmy Awards, and a Tony Award. She was voted Number 20 in Channel 4's countdown of the 100 Greatest Movie Stars of All Time, being one of only two women in the Top 20. Weaver rose to prominence for playing Ellen Ripley in the science fiction film Alien (1979), which earned her a nomination for the BAFTA Award for Most Promising Newcomer. She reprised the role with a critically acclaimed performance in Aliens (1986), for which she received her first Academy Award nomination. She returned to the role in two more sequels: Alien 3 (1992) and Alien Resurrection (1997). The character is regarded as a significant female protagonist in cinema history. Her other franchise roles include Dana Barrett in Ghostbusters (1984), Ghostbusters II (1989), Ghostbusters (2016), and Ghostbusters: Afterlife (2021), and Dr. Grace Augustine in Avatar (2009)—which remained the highest-grossing film of all time for a decade—and its multiple sequels scheduled to be released throughout the 2020s. Although Dr. Augustine died in the first film, Weaver has been retained to portray a different character via motion capture in upcoming installations. Her work in the Broadway play Hurlyburly (1984) earned her a Tony Award nomination. Further acclaim came with playing primatologist Dian Fossey in Gorillas in the Mist (1988), for which she won a Golden Globe Award, and in the same year, winning another Golden Globe Award for her performance in Working Girl. Weaver was the first actor to have two acting wins at the Golden Globes in the same year; she also received an Academy Award nomination for both films. Weaver collaborated with Ridley Scott again, appearing as Queen Isabella in 1492: Conquest of Paradise (1992) and appeared in Death and the Maiden. She went on to win the BAFTA Award for her role in The Ice Storm (1997). Although best known for her role in the Alien franchise, Weaver has fostered a prolific filmography, appearing in more than 60 films. She has done extensive voiceover work and has had multiple roles in animated films, including The Tale of Despereaux (2008) and Pixar films WALL-E (2008) and Finding Dory (2016). She has worked in several documentaries, such as the BBC series Planet Earth (2006) and The Beatles: Eight Days a Week (2016). She has also lent her voice to three audiobooks, four film soundtracks, and two video games – James Cameron's Avatar: The Game (2009) and Alien: Isolation (2014) – and voice acted on the television shows Futurama, Penn Zero: Part-Time Hero, and SpongeBob SquarePants, among others.