Matronly owner of the local tavern.
An old, wise and learned wizard, he tends to forget more about the world than most people have learned, most often the most basic things.
A socially inept and ugly human monk, with a smattering of arcane skills, on a quest of vengeance to find his mentor’s killers.
Nearly every primitive culture has had rituals and celebrations to guarantee the proper passage of the seasons and to ensure the fertility of crops and animals. Oversight of these ceremonies was generally the provenance of local kings or priests.
Suppose that the adventurers dispatch one of these fellows. The local peasants may become hysterical, fearing famine and death will stalk the land. Alternatively, they may want one of the new heroes to become king. For a while, this can be a good thing, but the first time that the crops fail, the superstitious locals will want to sacrifice their new leader.