Type: Endoparasitoid extraterrestrial species
The Deacon — also known as an Proto-Xenomorph — is a Xenomorph-like species created by the Engineers (Space Jockeys) to be used as a weapon, which turns around and backfires horribly. It bears many resemblance
s to the Xenomorph; however, it possesses more human-like teeth and has an erect bipedal posture. Its head shape is also unlike that of Xenomorphs, and it seems to emerge from its host using its pointed skull as opposed to simply biting or punching through the ribcage.
It should be noted that the Deacon and its constituent castes are not the same species of Xenomorph encountered on LV-426; but rather a more primordial variant. LV-223 was the location of a facility housing prototypes of the black goo that would later bring life to this primitive form of Xenomorph.