Xenomorph

The xenomorph (also known as a XX121 xenomorph, Internecivus raptus, or simply the Alien or the creature) is a fictional endoparasitoid extraterrestrial species and the titular main antagonists of both the Alien and Alien vs. Predator franchises from 20th Century Studios. The species made its debut in the film Alien (1979) and reappeared in the sequels Aliens (1986), Alien 3 (1992), Alien Resurrection (1997), and Alien: Romulus (2024). The species returns in the prequel series, first with a predecessor in Prometheus (2012) and a further evolved form in Alien: Covenant (2017), and the 2019 short films Alien: Containment, Specimen, Night Shift, Ore, Harvest, and Alone.

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