List of Alien characters

Alien, a science-fiction action horror franchise, tells the story of humanity's ongoing encounters with Aliens: a hostile, endoparasitoid, extraterrestrial species. Set between the 21st and 24th centuries over several generations, the film series centers around a character ensemble's struggle for survival against the Aliens and against the greedy, unscrupulous megacorporation Weyland-Yutani.

The main series consists of four films, Alien (1979), Aliens (1986), Alien 3 (1992) and Alien: Resurrection (1997), about Ellen Ripley's fight against the Aliens. Ripley is the sole survivor of an Alien rampage on the space freighter Nostromo, which leads her to a series of conflicts with the species and Weyland-Yutani. Ripley's struggle is the plot of the main series.

The prequel series, Prometheus (2012) and the upcoming Alien: Covenant (2017), depicts humanity's genesis at the hands of an ancient extraterrestrial race known as the Engineers and the origin story of the Aliens. The story begins with the search for God by archaeologist Elizabeth Shaw, who discovers with her expedition that the Engineers sought to eradicate humanity with a mutagen which is a chemical precursor of the Alien strain.

Arthur Koblenz Dallas (Tom Skerritt) is the captain of the Nostromo and the only human crew member with access to Mother, the onboard computer. When he receives a distress signal from the Derelict, an Engineer ship, Dallas steers the Nostromo off course to investigate the beacon. After the Alien hatches from Gilbert Kane's chest and murders Samuel Brett, Dallas enters the ship's air ducts to lure it to the airlock and eject it into space. He is attacked by the Alien and disappears - presumed dead - leaving only his flamethrower.

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