Desperate worshippers of the cruel Fae, trading their bodies and souls for a chance to meet their immortal master's approval.
A vaguely named corporation with a poorly defined, run by spooks and driven by greed - so really only different in that it has actual blood suckers on the board instead of figurative ones.
Mercenary vampires with a thirst for blood and soul, combining arcane might with ruthless, crushing power.
Experts in dealing with demons, sealing pacts, and getting paid for it.