Herobrine

Brian Jexela Persson (often called "Herobrine") is a Minecraft legend and is Notch's brother. He rules The Nether and wants to rule Minecraft someday. He looks exactly like Steve but without pupils. He is also the master of all mobs. He can't die and he likes to build structures around your World just to creep you out. He hangs out on Singleplayer and stalks people just for fun.

Steve running from Herobrine: https://www.youtube.com/watch?v=EyoF1igxclY