Seth

(this is based on an actual nightmare that i had as a child, the vampire that chased me doesnt really look like this but i dont remember him since i wasnt looking back)

he may seem like the quiet and misterious type, however he has a whole different side to him that only a few have the displeasure to know

he is the one behind that one nightmare that you will never be able to forget no matter how many years pass, 

he's the one to chases you in your sleep and his only goal is to end your life, you can run and run but you'll always reach the same ending

falling to your end, through the broken pieces of glass from the window of the highest floor on the building

of course you open your eyes abruptly as soon as you hit the floor, realizing you still breathe you're awake now and safe....right?

"until you close your eyes again, we'll find each other and this time i'll catch you"