- For the Starfleet cadet, please see T'nag (cadet).
T'nag was an old enemy of the Klingon warriors Kor, Koloth, and Kang. The three Klingons fought a glorious battle against T'nag and his army of 40 legions. They emerged victorious against overwhelming odds, killing T'nag and feasting on his heart. (DS9: "The Sword of Kahless")