the unknown: he just like screech except you do not look at him you look away,so the unknown is very hard to tell if it is screech. The only way to know it is The unknown is when the "Psst" is a bit more lower and demonic like,he only shows after the seek chase,he can also make the player go into "Hallucinations" which is his realm but if you die in the realm you loose the game. the hallucinations appear if you stay in the light to long or stare at a light for a shot amount of time.
Door Adrian: just the same old Adrian,except he is more shy and he has to deal with voices,and when the voices come,he falls down to his knee's and try to get rid of the voices. The voices are like a headache except they are worse because you have to deal with voices talking to you,making you want to do dumb things and having a headache at the same time.