The Herobrine version of Alex.
Herobrine is a main antagoinst in most stories of fanon Minecraft. According to the Creepypasta, he is Notch’s dead brother and possibly Nidarc’s brother too. We have no idea. The first sighting of Herobrine stated that Notch had said “I have a brother he is no longer with us” but has later stated that he has no brother, aside from a half-brother whom he rarely sees