Sigourney Weaver, born Susan Alexandra Weaver on October 8, 1949, in New York City, is an American actress known for her pioneering portrayals of action heroines in film. She is the daughter of American television executive Pat Weaver and English actress Elizabeth Inglis.

Sigourney Weaver made her screen debut with a minor role in the romantic comedy film "Annie Hall" (1977) before her breakthrough role as Ellen Ripley in the science fiction horror film "Alien" (1979). She reprised the role in the sequel "Aliens" (1986), earning a nomination for the Academy Award for Best Actress.

Her other franchise roles include Dana Barrett in the "Ghostbusters" films (1984-2021) and dual roles in the "Avatar" film series (2009-present), which rank among the highest-grossing films of all time. In 1989, she won two Golden Globes and received two simultaneous Oscar nominations for her roles as Dian Fossey in "Gorillas in the Mist" (1988) and a young associate in "Working Girl" (1988).

She became the first actor to win two Golden Globes for acting in the same year. Weaver also won the British Academy Film Award for Best Supporting Actress for her role in "The Ice Storm" (1997).

Throughout her career, Sigourney Weaver has taken on a variety of roles in both film and television. Her other film roles include "The Year of Living Dangerously" (1982), "Copycat" (1995), "Galaxy Quest" (1999), "The Village" (2004), "Vantage Point" (2008), "Chappie" (2015), "A Monster Calls" (2016), and "Master Gardener" (2022).

She has also had voice roles in the Pixar animated films "WALL-E" (2008) and "Finding Dory" (2016). On stage, Weaver's Broadway performances include "The Constant Wife" (1975), "Hurlyburly" (1984), and "Vanya and Sonia and Masha and Spike" (2013). Her performance in "Hurlyburly" earned her a nomination for the Tony Award for Best Featured Actress in a Play.

Her television work includes Emmy Award nominations for her roles in the horror film "Snow White: A Tale of Terror" (1997), the drama film "Prayers for Bobby" (2009), the miniseries "Political Animals" (2013), and for narrating the National Geographic documentary "Secrets of the Whales" (2021).

Her other television projects include the Marvel action miniseries "The Defenders" (2017) and the drama miniseries "The Lost Flowers of Alice Hart" (2023).