In the mirror universe, Demrik was a crewmember aboard Zek's starship, the Capital Gain. In 2375, he operated the ship's cloaking device. He was presumably killed, either during the Alliance's capture of the ship, or executed as a prisoner by Kurn afterwards. (DS9 - Mirror Universe novella: Saturn's Children)
- It is unknown if Demrik has a counterpart in the primary universe.