This article contains lore taken from the Warcraftmanga or comics.
Targnak is an orcshaman. While trying to help the land in northern Durotar, he advised Shagara not to worry of the elemental's recent refusal and to proceed to join the Garad'kra in Orgrimmar. He later reported the status of Felgrim and eventually watched the duel between Shagara and Ashra.[1]
Notes
As he mentioned that the shaman of the Earthen Ring had problems with the elements, he too, may be a member of the organization.