Gultin

Gultin is an old man.  A kind man.  A man of humble regret.  He wanders from town to town, offering his services to aid or assist the townsfolk.  Usually it's small things, like helping with errands.  However, he's also the first person to draw his blade to protect someone in need.  If you ever find yourself in need of his assistance, all you need to do is leave out a glass of milk with some cinnamon in it, and kindly call out for the assistance of a kind soul.

Gultin is said to be a fictional character, as stories of him go back for centuries, and while a glass of milk and cinnamon is more a call for good luck, every once in a while, someone will find their tasks completed, with nobody claiming responsibility for the kind task.  A bar patron will be saved from a bar brawl by an elderly man with more pep in his step than expected.  And any time the goblins roll from their caves, riding their wargs, the local militia have one more man than they expect.

The truth is, Gultin is a real man.  His was a curiously generous individual who sought to get more power...  but only for the sake of aiding others.  His inherently kind nature lead him to once assisting a fae from imprisonment, and upon being returned to her home, he was given one wish.  While he knew that fae magic was fickle and dangerous, he accepted her generosity. Simply stating that his only wish was to "always be able to help those who asked." 

His wish was granted, as he became... less than mortal.  Age no longer stalked him, and he would be able to travel long distances towards those who called for his aid.  While he would be lying if he said he did not wish for death to claim him, to be with his family in the afterlife, he could not bear the thought that his selfish desire for death would result in harm coming to an innocent family because he couldn't come to their aid.