Kilrath is a level 68 quest giver located just northwest of the Bleeding Hollow Ruins in the contested territory of Terokkar Forest.
He starts the following quests:
See List of Terokkar Forest NPCs.
Wrath of the Lich King[]
Kilrath can be found in Wintergrasp as a quest giver for the Horde. He has been promoted to tactical officer.
Legion[]
Tactical Officer Kilrath can be found in The Hall of Shadows, the rogue class hall. He has no dialogue or quests.