TheWoWDBHumanoid
Grol'kar
Warlock Trainer
Details
This roster comes from the current game client's data files, so it is not a complete list of every NPC in the game - older world NPCs that are no longer in the modern client are absent.
Level and Map Tracking
The game data tunes Grol'kar for levels 10 to 40, Warlords of Draenor content.