The clone of Kahless (2369)
The clone of Kahless the Unforgettable was created by the clerics of Boreth in 2369 using DNA from the Knife of Kirom. The clerics wished to give the impression it was the real Kahless, who had returned from Sto-Vo-Kor to once again lead his people. After he was revealed as clone, Chancellor Gowron decided to give Kahless the title of Klingon emperor, while he remained in control of the Empire. (TNG: "Rightful Heir")
Emperor Kahless refused to talk with Lieutenant Commander Worf when the Starfleet officer tried to find the reason for a large Klingon fleet docked at Deep Space Nine in 2372. Kahless' lack of power as emperor emerged several days later when the fleet launched an invasion of the Cardassian Union. Emperor Kahless condemned the invasion but was overruled by Gowron. (DS9: "The Way of the Warrior", "The Sword of Kahless")
- The clone of Kahless was played by Kevin Conway.