Josiah Avery

I hope that the entire alliance thanks/blames Josiah Avery for biting every Gilnean Human that eventually turned into a Worgen.  His reluctance to come out of the cellar that eventually leads to biting people, one at a time, would change the face of the alliance forever.

Here is to you, Josiah Avery: The Most Influential NPC in World of Warcraft.