Deathguard Dillinger is a level 22 guard located in Brill in the Forsaken starting zone of Tirisfal Glades. He can provide directions to various locations.
He starts the following quests:
[6] A Putrid Task
[8] The Mills Overrun
[10] Ulag the Cleaver
[10] Speak with Coleman
See List of Tirisfal Glades NPCs.