Alien (1979)
Director: Ridley Scott
Cast: Sigourney Weaver, Tom Skerritt, Bolaji Badejo, John Hurt, Veronica Cartwright, Harry Dean Stanton, Ian Holm, Yaphet Kotto
The spaceship Nostromo visits a desolate planetoid after receiving an unknown signal from a derelict alien spacecraft. While exploring the ship, one of the Nostromo's crewmen discovers an egg-like object, which releases a creature that attaches itself to his face and renders him unconscious. Some time later, the parasite dies and the crewman wakes up, seemingly fine. However, an alien creature later bursts out of his chest and, after rapidly growing into an eight-foot creature, starts killing other members of the crew.
- Sigourney Weaver as Ripley, the warrant officer aboard the Nostromo.
- Tom Skerritt as Dallas, the Captain of the Nostromo.
- Harry Dean Stanton as Brett, the Engineering Technician.
- Yaphet Kotto as Parker, the Chief Engineer.
- John Hurt as Kane, the Executive Officer who becomes the host for the Alien.
- Veronica Cartwright as Lambert, the Nostromo's navigator.
- Ian Holm as Ash, the ship's Science Officer who is revealed to be an android under orders to bring the Alien back to the Nostromo's corporate employers.
Aliens (1986)
Director: James Cameron
Cast: Sigourney Weaver, Michael Biehn, Lance Henriksen, Carrie Henn, Paul Reiser, Bill Paxton
Lieutenant Ellen Ripley, the only survivor of the Nostromo, awakens from hypersleep 57 years later, aboard a new space station. She discovers that the planetoid from the first movie is now home to a terraforming colony. When contact with the colony is lost, Ripley accompanies a squad of Marines there aboard the Sulaco.
- Sigourney Weaver as Ellen Ripley
- Carrie Henn as Newt, a child who is the only survivor of the colony on LV-426.
- Michael Biehn as Corporal Dwayne Hicks, one of the Colonial Marines' squad leaders.
- Jenette Goldstein as Private Jenette Vasquez, one of the marines' "smart gun" operators.
- Lance Henriksen as Bishop, the android executive officer of the Sulaco.
- William Hope as Lieutenant William Gorman, the marines' commanding officer.
- Al Matthews as Sergeant Al Apone
- Paul Reiser as Carter Burke, a corporate representative for the Weyland-Yutani Corporation.
- Mark Rolston as Private Mark Drake, Vasquez's smart gun partner.
- Cynthia Dale Scott as Corporal Cynthia Dietrich, the marines' corpsman.
- Bill Paxton as Private William Hudson, the Marine team's technician.
Alien 3 (1992)
Director: David Fincher
Cast: Sigourney Weaver, Charles S. Dutton, Charles Dance, Paul McGann, Lance Henriksen, Pete Postlethwaite, Brian Glover
Due to a fire aboard the Sulaco, an escape pod is released. It crash-lands on the refinery/prison planet Fiorina "Fury" 161. Ripley is the only survivor. Unknown to her, an egg was aboard the ship. The creature is born in the prison and begins a killing spree. Ripley later discovers there is also an alien queen growing inside her.
- Sigourney Weaver as Ellen Ripley
- Charles S. Dutton as Dillon, one of Fiorina's inmates who functions as the spiritual and de facto leader amongst the prisoners and attempts to keep the peace in the facility.
- Charles Dance as Jonathan Clemens, a former inmate who now serves as the facility's doctor.
Alien Resurrection (1997)
Cast: Sigourney Weaver, Winona Ryder, Dominique Pinon, Ron Perlman, Gary Dourdan, Michael Wincott, Brad Dourif, Leland Orser, Dan Hedaya, J.E. Freeman, Kim Flowers, Raymond Cruz
Two hundred years after the events of the previous film, Ellen Ripley is cloned and an Alien queen is surgically removed from her body. The United Systems Military hopes to breed Aliens to study on the spaceship USM Auriga, using human hosts kidnapped and delivered to them by a group of mercenaries. The Aliens escape their enclosures, while Ripley and the mercenaries attempt to escape and destroy the Auriga before it reaches its destination, Earth.
- Sigourney Weaver as Ellen Ripley
- Winona Ryder as Annalee Call, the newest crew member of the Betty.
- Ron Perlman as Johner, a mercenary and member of the Betty's crew.
Prometheus (2012)
Director: Ridley Scott
Cast: Noomi Rapace, Michael Fassbender, Charlize Theron, Idris Elba, Sean Harris, Kate Dickie, Logan Marshall-Green, Patrick Wilson
Ridley Scott, director of Alien and Blade Runner, returns to the genre he helped define. With Prometheus, he creates a groundbreaking mythology, in which a team of explorers discover a clue to the origins of mankind on Earth, leading them on a thrilling journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race.
- Charlize Theron as Meredith Vickers
- Noomi Rapace as Elizabeth Shaw
- Michael Fassbender as David
- Idris Elba as Janek
- Rafe Spall as Millburn
- Sean Harris as Fifield
