In the mirror universe, Richard Galen was a Terran archaeologist, and the mentor of Jean-Luc Picard during the 24th century. Galen was entirely self-educated, although Picard felt that Galen knew more about his field than most scientists in the Klingon-Cardassian Alliance. Galen proposed a theory that the Klingons and the Cardassians shared a genetic heritage with the Terrans, which proved incredibly unpopular in the Alliance. As a result, he was executed for sedition. No Alliance scientists were willing to follow up on Galen's research, nor was Picard's Alliance benefactor, Gul Madred, willing to expend any resources on the matter.