The I.S.S. Emissary is an Emissary-class cruiser in service to the Imperial Starfleet of the Terran Empire, and the mirror universe counterpart of the U.S.S. Emissary. She is part of Captain James O'Brien's attempted invasion of the Federation in 2409.
- See Terran Cruiser.
- In June 2012, Terran ships received a visual makeover and the Emissary replaced the I.S.S. Avenger in-game.