Half breeds and a Human
“For a brief period of time in Roi it was fashionable to wear a talisman of a troll toe in a vial of acid, when they broke they were discarded into the sewers, suffice it to say, stay out of the sewers in Roi.” Lontain, the Wandering Bard
Mean, hungry and stupid, trolls are more of a natural disaster then race of beings. With the ability to reproduce by severing body parts (which occurs a lot when 2 trolls disagree with each other) an area with one or 2 trolls most likely has many more near by. Due to their regenerative properties, troll blood (which cannot turn into a new troll) is a very potent healing component us in the strongest healing potions.