Vampire

Vampires, also known as Vrykolakas, Strigoi and Nosferatu, in ancient Terran lore as well as different parts of the galaxy, are an intelligent race of other-dimensional psychic entities that have polymorphic abilities to appear in any form they chose, and are native to the psychic realm of the Immaterium.

History
The ancient legends of Old Earth were for long ages discredited as invention, folk-lore and myth. The reality, however, was to prove far more disturbing. Vampires are polymorphic entities able to change their metabolism in order to resemble the creatures amongst whom they dwell. Their natural shape (if such it can be called) is bat-like, although approximately human-sized. Vampires exist within the societies of most established intelligent races, and often assume positions of authority. They naturally crave power amongst the intelligent races, regarding even fellow Vampires as threatening rivals. They have no home world. Where they evolved and why they have come to occupy a parasitic position within alien societies is unknown.

Vampires live amongst their chosen race after the manner of that race, and cannot easily be singled out. They have psychic powers of a level comparable to humans. Vampires maintain their lives by absorbing the life-force of other creatures, achieved by prolonged physical contact. Fortunately, Vampires can derive some sustenance by normal eating and drinking, and so only require a little stolen vitality to survive. If a victim is drained of his or her life force they can be revived as a Zombie, a will-less servant completely under the Vampire's thrall. Zombies are corpses, and will slowly rot and decay until their usefulness becomes somewhat limited. Creating a Zombie is not something casually undertaken.