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 app
The Ghost of Barbara Radziwiłł by Wojciech Gerson. Ghosts are a common form of the undead.
The Dead Lovers, c. 1470 (Strasbourg, Musée de l'Œuvre Notre-Dame)
Utagawa Yoshiiku, Specter frightening a young woman
A vampire is a mythical creature with a human-like appearance that subsists by feeding on the vital essence of humans. In European folklore, vampires are undead humanoid creatures that visit loved one
Undead
…own life force or that of a supernatural being (such as a demon, or other evil spirit). The undead may be incorporeal (ghosts) or corporeal (mummies, vampires, skeletons, and zombies). The undead are featured in the belief systems of most cultures, and appear in many works of fantasy and horror fiction. The…
The Vampire, by Philip Burne-Jones, 1897
Vampire (1895) by Edvard Munch
A runestone with an inscription to keep the deceased in its grave
800-year-old skeleton found in Bulgaria stabbed through the chest with an iron rod