Theme: Alien Possession

Alien Possession is similar to the Possession Film in which a human being is inhabited by another force. In this case, the possessing force is alien in nature as opposed to a demonic or supernatural agency.

Alien possession occurs when aliens take control of human bodies or minds. Frequently the purpose of doing so is part of an Alien Invasion so that they can pass unnoticed amongst humans. In some examples, the invasion involves mass possession of the populace. Sometimes it can be more innocently to visit or explore this world.

Other forms of alien possession can include parasitic organisms that take control of a body, most memorably in the case of the chestburster in Alien (1979) – these are more properly covered under Parasites. In other examples, aliens are known to take control of the dead or else be able to hop between bodies.

See also Body Snatchers for aliens that replicate and mimic human form.