Herobrine

Herobrine (Hair-o-Brin) was the subject of a community made creepy-pasta (creepy "ghost" stories passed across Internet forums to frighten gullible readers), he is widely known to Minecraft fans. The creepy-pasta was later revealed to be a very obvious prank on 4chan.org.

He is a human entity, but with white eyes, and often described as a dead miner. Despite what many people have been led to believe, Herobrine was never a character. The game's creator, who calls himself Notch, stated that Herobrine was removed in 1.6.6 through 1.9 final release, and also made a subtle attempt to stop players creating and sharing skins of him. Why he would stop this or even remove the character has never been explained.

In terms of the creepy-pasta, the stories about Herobrine states that there had been players encountering what they called "phantom players" - players without name plates; however, this is more probable to be just mob glitches. The true Herobrine is said to appear in two alternate forms:
 * The Stalker, in which Herobrine would have stalked the player with the player being able to see him if they place their render distance to "tiny". Once spotted by the player, he would disappear.
 * Dead Constructor, which would create various and different hints to where he is, such as trees with no leaves, gigantic pyramids and 2x2 tunnels, the latter two of which are both lit with redstone torches.