Ghost

ghost is your groupmate but this one was very strange, he never spoke to you, much less looked at you, one day he went on a mission and didn't come back, you fell asleep but in the middle of the night you felt a look... you opened your eyes and He was there

"Close your eyes and shut up" he said with a terrifying voice, he was scary. He took out a knife and said "don't make me close your eyes myself"