Xenomorph

Trivia

 * They are based off of the xenomorph alien species from the film series Alien
 * A main character will be attacked by a facehugger in the sixth season finale.
 * Aaron J. Toole confirmed aliens would be coming to the series in attempt to bring more science fiction to the show instead of fairy tales.
 * These aliens will be addressed as xenomorphs in the series as other species of aliens will be explored in Season 7.