Well, actual caster will be the bard. As two others are vampire hunter with watered down inquisitor casting (comparable to paladin spellcasting in amount) and then kineticist (which is more elemental energy attacker) or oracle necromancer despite risks of vampire hunter holding loaded crossbow constantly ready for him/her :P. Kineticist can be build pretty good in close combat, ranged combat or on both depending on build and element chosen.<br/><br/>But as mentioned play what you like and I roll a GMPC based on any absent roles :)