The cast so far:
Human
Paladin
High Elf
Warlock
Half Elf
Wizard
Dwarf
Cleric
Tiefling
Fighter (Warlock)
Human
Rogue?
So we've got two frontline (Paladin/Cleric), two frontline support (bladelock, rogue) and two back line (Wizard, Warlock). I think that's a good setup, but the final decision is on you guys :)