Stalker

A Stalker is an entity who's purpose is to quite literally stalk the dreamer. It will often appear as an imposing or mysterious figure which stands at a distance and watches, no matter were you are.

Behavior
A Stalker stalks, but does not hunt or attack, at that point it would have become a Chaser. It simply instates itself as an intimidating figure to spot in the background. Prone to what seems like teleportation, a Stalker can place itself in any direction you look, depending on how aggressive it's willing to be. One of the most popular forms it can take is that of a neutral standing human figure either shrouded in darkness or suited in a trench coat or formal attire.