Shadow Man

Shadow is one of the four creatures tormenting Mary in the house. He is arguably one of the least aggressive of the creatures as he has never explicitly attempted to harm Mary yet.

Biography
Not much is known about the Shadow. It seems to prefer to observe Mary rather than attack her outright. It has 2 notable traits though, often ones that go unnoticed, One being that he seems to be near Mary when she feels safe, like when she's sleeping or texting on the couch, two, being that when it's around text that is not by Mary comes up, I feel nothing, I messed up, nothing is real are all lines shown. The Shadow Man has also been shown to scream and cause technical interference. He has grabbed at Mary before. He is also shown to have grown taller and larger throughout the series, at one point he was so large only his hand was able to reach through the kitchen

Shadow is said to represent Mary's regret, as the traits he or she shows is similar. Regret always lingers around, like Shadow does. It also sometimes strikes when you feel safe. Mary has said that 'looking at it makes her feel bad'. One of the popular theories is that Mary had an affair with someone when she wasn't ready for it, based on the fact that Shadow strikes when she's sleeping.

In what is most likely the two final episodes of the series the Shadow only appears twice. He first appears after the darkness attacks mary and is shown first standing in the kitchen and then crawling from behind the kitchen island before stretching his arms across the island only with four arms instead of two, and then finally appearing in the living room. He makes his final appearance in "Goodbye" shortly after the death of both the Veiled lady and the Beauty. He is shown standing before Mary who is sitting on the couch. She motions for it to sit beside her which it does before facing him and telling it "It's gonna get easier, I promise." The shadow then turns away from her before turning pure white and vanishing.