The undead are beings in mythology, legend, or fiction that are deceased but behave as if they were alive. A common example of an undead being is a corpse reanimated by supernatural forces, by the application of either the deceased's own life force or that of a supernatural being. The undead may be incorporeal (ghosts) or corporeal.

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Not who you're looking for? Others named undead: 2003 film directed by Michael Spierig and Peter Spierig · book series · album by Ten Years After · Tad Morose album

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From Wikipedia (CC BY-SA 4.0).