| This minifigure has only appeared in video game(s)|
Although this article is about an official minifigure, it never existed in physical form or appeared in any official LEGO sets.
Nightmare was the evil ruler of a 'dream dimension', where tormented humans were brought during their sleep. He roamed this realm on his demonic black horned horse named Dreamstalker. He appears as a chalk-white man with wild green hair, a green bodysuit, and a ragged cape. He was the first foe met by Doctor Strange, when a man who was having troubled dreams went to Strange for help, though it is revealed this is due to him committing a murder. Later Nightmare imprisoned several humans in his dimension, but Strange freed them. When Doctor Strange forgot to recite a spell before he slept, Nightmare started tormenting him, before Strange was freed after tricking Nightmare by casting an illusion of an enemy of his.[volume & issue needed]
Nightmare was a demon from the dimension Everinnye, like his "cousin", the Dweller-in-Darkness. Nightmare was dependent on the human race's need to dream. Without this ability, Nightmare would cease to exist, but humanity would go insane. At one point Strange and Nightmare had to join forces to prevent that from happening. Nightmare has run afoul of Spider-Man, Captain America, Ghost Rider, Dazzler, Wolverine, and the Hulk on different occasions. Nightmare also served under Shuma-Gorath and warned Strange that the demon would be a force that even the Sorcerer Supreme would have trouble defeating, and he once joined the Fear Lords, a group of supernatural creatures who fed on fear, to attack Dr. Strange together. Their plans were undone when D'Spayre tricked him into competing with the Dweller-in-Darkness over who could frighten humanity more.