Humanoid beasts larger than most men, characterised by their almost transluscent white skin and deep black eyes. Intruders are the result of a sentient otherwordly entity kicking out, consuming or killing all of the others within an imp, then closing its psychic gate and escaping from its master's clutches. Their new objective is to consume as many people as possible, absorbing their faint psychic energy to empower themselves.
For this purpose, the Intruder has numerous tools at its disposal. It can seemingly phase in and out of physical barriers such as walls or doors, though it cannot overuse this ability. Furthermore, its body can become partially transparent, increasing its capacity to remain hidden. Eventually, after consuming a large enough number of victims, the Intruder will gain more humanlike physical characteristics, though its eldritch nature can never be truly hidden.