Wampyr

 Wampyres  are a type of augmented men, developed as shock troops by the Empire to replace the Hadenmen. Wampyr derived their superhuman abilities from a genetically-engineered blood substitute that made them faster and stronger than any ordinary human, and grants the ability to regenerate. Unfortunately few Wampyr survived the Empire's attempt to use them against the Grendel aliens. Most humans find Wamyrs creepy.

Wampyr blood is highly addictive to humans, producing a similar effect on the body as in a Wampyr itself. It can be processed into the drug blood. Those dependent on the drug are known as Plasma Babies, and are the virtual slaves of their Wampyr master.

Lucien Abbott was a wampyr living on Mistworld.