In the mirror universe, Copowycz was a Terran and lieutenant in the Imperial Starfleet during the 23rd century. In the late 2240s or early 2250s, Copowycz served as a communications officer aboard the ISS Constellation. During this time, Copowycz was responsible for maintaining contact between the Constellation and the ISS Indomitable. (TOS - Mirror Universe short story: "Ill Winds") It is unknown whether or not Copowycz has a counterpart in the primary universe.