In the mirror universe Deanna Troi was security chief on the ISS Enterprise-D during the Terran Empire's final days of its war with the Klingon-Cardassian Alliance. She and Jean-Luc Picard murdered Beverly Crusher. They wanted to dispose of Wesley as well, but the war left a shortage of all officers, and someone with Wesley's talents was considered indispensable (The Final Days). Picard and Troi later sold out to the Alliance, where Deanna caught the eye of an up-and-coming Council member named Worf. She became Worf’s consort when Worf became Regent of the Alliance territories.