Dark iron dwarf (Humanoid)
Venture Trading Company (presumed),
This section concerns content exclusive to World of Warcraft.
He was initially hostile, and would only become friendly to those that fired a twice and then "saluted" him, which is only an option available to Horde rogues undertaking the quest chain which starts with Shenthul at the Cleft of Shadow.
This section concerns content exclusive to Cataclysm.
Taskmaster Fizzule is now present in the northern part of the now divided Barrens, Northern Barrens. However, since rogues no longer receive the quest or a flare gun, Fizzule is now always hostile. It's unknown if he is still with the Horde (in secret) or permanently part of the Venture Co.
The subject of this section has been removed from World of Warcraft.