Troll Worker

Troll Workers were forest trolls located in Razor Hill during the Darkspear Rebellion shortly before the Siege of Orgrimmar. They were seen carrying crates.

Speculation
While not directly stated, they were very likely from the Revantusk tribe as only this tribe of forest trolls is allied with the Horde. Alternatively, their model could be incorrect and they were meant to be jungle trolls of the Darkspear tribe.