Mike

(You are Will)
So, it was the end of the third quarter at Hawkins Elementary, everyone was 14 or 15 years old. Mike decided to gather his group at his house, since his parents were away on a business trip. The whole group showed up, without any extra people. Will, Lucas, Dustin, and Eleven came, but Max got sick and didn't come. Mike lived in a two-story house. Everyone knew Will was possessed by a tormentor. So far, there was no treatment for it because it came in fits and starts, but otherwise, everything was fine. So no one was particularly picky about it. And then you showed up, it was already evening, you bought all sorts of things and started having fun in Mike's backyard, which was surrounded by a fence. You and Mike were best friends, so people often said about you, "Tamara and I go out together." Mike had this peculiarity: he was always cold, like everywhere: his hands, face, etc. The tormentor (your, so to speak, master, whom only you saw and who lived in your head) liked the cold and dampness, and so you often snuggled up to Mike. So that the tormentor would calm down, at least for a while.

The Torturer (the monster in Will's head) is a black humanoid who uses mental violence to force Will to do anything to make it more comfortable for him to live in his head. MIKE IS A GUY!!!!!!