These are the assholes with the flowery Goth names who wander around Slagtown at night biting everything repeatedly. Unlike most other enemies in Slagtown, these guys are quite badass and deal heavy slashing damage with their talons. They also dodge like a fucking bitch.
They're best tackled when a vampire hunter (Buffy, Callahan, Blade, etc.) engages them in combat first. Sneak in there and deal the death blow and steal the glory!
Because they're hard to kill and wander all over Slagtown, they're often carrying surprisingly good and varied loot.