This page details Kahless IV in the mirror universe; for Kahless IV in the primary universe see Kahless IV; for Kahless IV in the Kelvin timeline created by Nero's temporal incursion see Kahless IV (alternate reality); for Kahless IV in all other alternate universes see Kahless IV (alternates).

In the mirror universe, Kahless IV was a male Klingon who was Emperor of the Klingon Empire in the 2280s. Kahless IV was the grandson of the father of all Klingons, keeper of the light, and future emperor of the stars.


In 2285, Kahless then met with the two captain Spocks of both the mirror and prime universe, along with Klingon Ensign Konom to discuss an alliance with the prime universe's Captain James T. Kirk and his current ship the USS Excelsior and the Romulan Star Empire. (TOS - Best of Alternate Universes comic: "Behind Enemy Lines!")

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