Star Trek Online's upcoming update sends Captains on a rescue mission in the Mirror Universe alongside characters including Admiral Janeway (Kate Mulgrew from Star Trek: Voyager), Admiral Leeta (Chase Masterson from Star Trek: Deep Space Nine), and an Andorian rebel named "Rae-Yeet" (Noah Averbach-Katz from Star Trek: Discovery). Together, they will stop Terran forces led by Captain Killy (Mary Wiseman from Star Trek: Discovery), from reawakening a dangerous nemesis.