Jonathan Carevin is a level 25 quest giver located in Darkshire in the human-aligned territory of Duskwood. His family and several supporters combat the undead in Duskwood, and are willing to take the fight to them rather than simply protect the populace as the Night Watch does.
There are some indications that the Carevins are part of the Scarlet Crusade, as shown by Johnathan Carevin stating "We battle against demons, the undead, and those who would provide them aid. Be vigilant, be wary, and trust none who would not give aid to our cause", and also the use of the Crusade's motto — "Glory under the Light".
He starts the following quests: