Commander Thorak

Commander Thorak is an orc located at the Dranosh'ar Blockade in Durotar.

Quests

 * Warchief's Command: Vashj'ir!
 * To the Depths (Horde)
 * Call of Duty (Horde)

Speculation
Judging by the attire and quests, he may be a member of the Hellscream's Vanguard.