Sigourney Weaver, ‘Alien’ and ‘Avatar’ actress, U-M alum

Sigourney Weaver poses during the Avatar: Fire & Ash Mexico City meet and greet at Light Cycles Mexico City on December 16, 2025 in Mexico City, Mexico.

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Pedro Pascal and Sigourney Weaver attend the Berlin Fan Celebration of “Star Wars: The Mandalorian and Grogu” at Uber Platz on May 04, 2026 in Berlin, Germany.

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Sigourney Weaver attends the UK Fan Event of Lucasfilm and Star Wars’ ‘The Mandalorian and Grogu’ at Cineworld Leicester Square on May 07, 2026 in London, England.

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Sigourney Weaver was born Oct. 8, 1949. The sci-fi hero might be best known for her role as Ellen Ripley in the “Alien” franchise. Here she is in the first film, released in 1979.

Robert Penn, 20th Century Fox

She starred opposite Bill Murray in the “Ghostbusters” movies. This is 1989’s “Ghostbusters II.”

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The extraterrestrial got up close and personal in 1992’s “Alien 3.”

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Sigourney Weaver sings autographs during the “Avatar: Fire & Ash Mexico City Premiere” at Cinemex Antara Polanco on December 15, 2025 in Mexico City, Mexico.

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Pedro Pascal, Sigourney Weaver and Jon Favreau attend the “Star Wars: The Mandalorian and Grogu” Berlin fan celebration at Uber Platz on May 04, 2026 in Berlin, Germany.

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Unexpectedly Drafted Into A Real Space Mission By Aliens Who Believe Their Science Fiction Series Is Real Life, Actors (L-R) Gwen Demarco (Sigourney Weaver), Sir Alexander Dane (Alan Rickman), Jason Nesmith (Tim Allen) And Fred Kwan (Tony Shalhoub) Find Themselves On A Hostile Alien Planet In Dreamworks Pictures’ Science Fiction Action Comedy, “Galaxy Quest.”

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Sigourney Weaver and husband Jim Simpson at Tina Brown’s TALK Magazine Pre-Golden Globes party at Le Mondrian, Los Angeles on Jan. 20, 2000.

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U.S actress Sigourney Weaver touches the star she received on the Hollywood Walk of Fame 16 December 1999 in Hollywood, California.

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Oona Chaplin (L) and Sigourney Weaver pose during the “Avatar: Fire & Ash Mexico City Premiere” at Cinemex Antara Polanco on December 15, 2025 in Mexico City, Mexico.

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In this handout photo provided by The Academy, Pedro Pascal and Sigourney Weaver pose backstage during the 98th Oscars at Dolby Theatre on March 15, 2026 in Hollywood, California.

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Actress Sigourney Weaver (L) and Jim Simpson arrive at the premiere of Lionsgate Films’ “Abduction” held at Grauman’s Chinese Theatre on September 15, 2011 in Hollywood, California.

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Spanish-Swiss actress Oona Chaplin (L) and US actor Sigourney Weaver (R) pose on the red carpet for the UK premiere of the film ‘Avatar: Fire and Ash’ in central London on December 11, 2025.

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Weaver in a scene from the 2001 rom-com “Heartbreakers.”

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The three counselors of Camp Green Lake, Mr. Sir (Jon Voight, left), The Warden (Sigourney Weaver, center) and Dr. Pendanski (Tim Blake Nelson, right), look a little worse for wear in Walt Disney Pictures’ new motion picture, Holes based on Louis Sachar’s award-winning novel, “Holes.”

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Director Jim Simpson and wife Sigourney Weaver attend MCC Theaters’ opening night of “Intrigue With Faye” after-party at West Bank Cafe June11, 2003 in New York City.

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Actress Sigourney Weaver and husband Jim Simpson arrive at the New York film premiere of “The Village” on July 26, 2004 at Prospect Park, in New York City.

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Sigourney Weaver of “Dust Bunny” poses in the Getty Images Portrait Studio Presented by IMDb and IMDbPro during the Toronto International Film Festival at InterContinental Toronto Centre on September 08, 2025 in Toronto, Ontario.

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Director Bryan Fuller and Sigourney Weaver attend the world premiere of “Dust Bunny” during Toronto Film Festival.

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Kiri (Sigourney Weaver) steps into her power in “Avatar: Fire and Ash.”

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Sigourney Weaver attends the world premiere of 20th Century Studios “Avatar: Fire and Ash” at The Dolby Theatre in Hollywood, California on December 01, 2025.

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Sigourney Weaver poses on the red carpet during the Oscars arrivals at the 98th Academy Awards in Hollywood, Los Angeles, California, U.S., March 15, 2026.

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Presenter Sigourney Weaver poses with Daniel Barrett, Eric Saindon, Richard Baneham and Joe Letteri, winners of the Oscar for Best Visual Effects for “Avatar: Fire and Ash” in the Oscars photo room at the 98th Academy Awards in Hollywood, Los Angeles, California, U.S., March 15, 2026.

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