Vampires are a rare race of supernatural (with less in existence than even werewolves). Vampires must feed off of the blood of humans, but they do not have to kill their victims each time they feed. However, they must kill and completely drain one human of blood each year before the date of their "rebirth" into vampirism. Vampires are generally the most disliked supernatural race. The reason for this is speculated to be because unlike other supernaturals, vampires must take the life of a human to prolong their own. (Whereas species like werewolves, although known to kill, can refrain from doing so.) Other reasons mentioned include the arrogant attitude some vampires display after vampire literature gained prominance. (Ie. The Anne Rice novels.)
Vampires are described as being semi-immortal. If wounded, a vampires flesh will seal itself together again in mere seconds. (As Edward Hagen's did during his fight with Jeremy Danvers.) The only way to kill a vampire is to decapitate them. They will, however, eventually die after several hundred years of "living". Signs of a dying vampire are lack of sleep, and becoming disconnected with the world.
Vampires, are described as very fast; Edward was successful in killing Joey Nast in the mist of many important Cabal employees without being seen. Even the druid diety Esus only caught a glimpse of him. Vampires also contain a sedative in their bite which renders a victim unconcious. Their saliva also has healing powers to human flesh. Also, many spells do not work on vampires...although a binding spell is quite useful against one.