NPC#1 (For the Inquisitor)- Half-Elf Flagbearer Bard using a Long Spear and reach weapon. Will take 7 levels in Bard (for Haste and move action performance) and then 4 levels in dragon disciple (For d12 HD, Natural armor, feat, Claws and Bite, Breath weapon, and +4 STR). Will want a good Longspear and Banner of the Ancient Kings. This is the force multiplier and Buff Bot. He will pick up AoOs with the longspear and do melee damage (From Reach) after a round of buffing. Out of combat he sings and spreads the word of your group's adventures. Make sure to use mirror image liberally and keep him in the 2nd ranks and not rushing out ahead. Remember he is a cohort and not a PC. Even tho he is well built he is still a few levels behind the PCs.
NPC#2- (For the Wizard)- Human Arsenal Chaplain Warpriest with an archery Focus. He will bring the ranged pain as well as offer a few more buffs to himself and the party. Since he is a prepared caster he can pick up removal spells when needed. Also since he is a cohort keeping him in the back does help keep him alive.
That's very specific. I like the idea for the bard, but that may be too complex for the inquisitor, and I think I'll do it myself. I'm not too fond of the warpriest idea though, I'd like to avoid more spellcasters