In the mirror universe, Tahna Los was a Bajoran male who lived during the 24th century. He was known for the fastidious detail that he paid to his personal grooming and appearance. By 2375, he was a member of the Terran Rebellion and served as the first officer of the Defiant-class warship Terra Victor under the command of Captain Kasidy Yates. Tahna was killed when the ship was destroyed by the IKS Ya'Vang. (DS9 - Mirror Universe novel: Saturn's Children)