- For the "regular" universe counterpart, see Spock.
- For the counterpart in the timeline created by Nero's incursion, see Spock (alternate reality).
- For the counterpart in Star Trek: Phase II, see Spock (STNV).
|Commander Spock aboard the ISS Enterprise|
|Species:|| 1/2 Vulcan|
|Title:||First officer, science officer|
In the mirror universe, Spock was a Vulcan Starfleet officer who served on the ISS Enterprise, rising through the ranks to command that vessel before gaining suzerainty of the Terran Empire. Under his leadership, the Empire enacted many reforms which ultimately left it defenseless to an invasion by the Klingon-Cardassian Alliance. (TOS: "Mirror, Mirror", DS9: "Crossover"; Glass Empires)
A Debt of Honor continuity Edit
In A Debt of Honor Spock went on to become the Empire's Commander-in-Chief, but was overthrown by the Imperial Starfleet shortly thereafter because of the influence the Halkans carried in his government. His katra was given to his Federation counterpart, apparently resulting in the two Spocks becoming a single individual. ("The Gift").
In Star Trek: Remington continuity, Spock was the first officer and science officer of the Dominion Grand Fleet's DSS Enterprise in an alternate mirror universe. Kirk's attempt to reform the Dominion was not successful and Spock was executed for attempting to start a revolution against the Dominion. He was executed by and succeeded as first officer by Hikaru Sulu.
- The Kirk who crossed over to the Dominion's mirror universe was from the REM primary universe, not the standard Trek primary universe.
|Officers of the starships Enterprise|
|NCC-1701:||Pike | Kirk||Spock||McCoy||Spock||Scott||Sulu||Chekov|
|NX-01 | NX-01 | NCC-1701 | NCC-1701 (alt) | NCC-1701 | NCC-1701-A | NCC-1701-B | NCC-1701-C | NCC-1701-D | NCC-1701-E|