Mercenaries

Bodyguard (Creature 1), Bounty Hunter (Creature 4), Mage for Hire (Creature 3), Monster Hunter (Creature 6)

Unless a mercenary prides themself on their name or reputation, the PCs might be able to bribe them to switch sides, or at least stand aside. You can estimate a bribe by taking roughly 5% of the Party Currency value from the row corresponding to the NPC's level on Table 10–9.

Here's some parlance commonly used by mercenaries.