Alien iPhone case, 4S protective case

The Alien (sometimes referred to as a xenomorph) is a endoparasitoid extraterrestrial species that is the primary antagonist of the Alien film series. The species made its debut in the 1979 film Alien, and reappeared in its sequels Aliens (1986), Alien 3 (1992), Alien Resurrection (1997), as well as two crossovers Alien vs. Predator (2004) and Aliens vs. Predator: Requiem (2007), and finally in Ridley Scott's 2012 film Prometheus. It also appears in various literature and video game spin-offs from the series.

 

Accessing the ship's computer, Ripley discovers that Ash has been ordered to return the Alien to the Nostromo's corporate employers even at the expense of the crew's lives. Ash attacks her, but Parker intervenes and decapitates him with a blow from a fire extinguisher, revealing Ash to be an android. Before Parker incinerates him, Ash predicts that the other crew members will not survive. 

 

The Alien design is credited to Swiss surrealist and artist H. R. Giger, originating in a lithograph called Necronom IV and refined for the series' first film, Alien. The species' design and life cycle have been extensively added to throughout each film.