Aramis is the local friendly kind priest who is oh-so-concerned by the rumors, and will reassure any worried muggles locals and/or hunters... while being prey to Anne, and to Porthos both. Oops.
Merlin is a pureblood in hiding who wants to change how they're all viewed.
Syaoran will be a muggle reporter who comes to town wanting to find information about these rumors and shenanigans happening.
Milady is a hunter, who used to be married to Athos hiding her turned-vampire status, and who was attacked by Thomas (who also got turned later) and killed him, leading to Athos trying to kill her, blahblahblah. She'd be a bit more like end of S1, where things are all tense and awful and they love to hate each other.
Steven is either sitting this one out, or will be a local kid who just wants everyone to get along \;A;/
Neal is the son of an infamous turned vampire, although he's just human himself, and is investigating to find a cure. It's what brought him to this place.
Nasir is part of a group of freed preys and is very against the bond of preys with vampires.
Dorian Ehhnnn undecided between runaway pureblood or making him prey.