It looks like Dave forgot what classes we had so far. If memory serves, we have:
-Human Monk5 who is a descendent of the original men to start the great Betrayal of the elves.
-Human Fighter/Ranger who is a little batty from living in the woods too long.
-Elven Fighter/Ranger/Wizard bowman.
If I got to pick, I'd say we could use a trap-specialist Rogue and an undead specialist Cleric. A paladin could also be cool, but in this kind of horror setting, a paladin's sanity is treading on thin ice.