For the primary universe counterpart, see Leonard McCoy.
See McCoy for other articles with titles that contain, either by relationship or by coincidence, this character's surname.

In the mirror universe, Doctor Leonard H. McCoy (2227-2269) was a Terran Starfleet officer who served as Chief Medical Officer aboard the ISS Enterprise in the 2260s.

His sickbay was filled with torture devices that appalled his primary universe counterpart.

So alike were the actions of the two McCoys that they both spilled acid on tables in their respective sickbays, creating a duplicate burn mark on each.

In 2266, McCoy spilled acid on a lab table in sickbay. In contrast to the primary universe, the stain was not cleaned and remained until at least another year.

In 2267, Dr. McCoy accompanied a landing party consisting of Captain James T. Kirk, Lieutenant Commander Scott, and Lieutenant Uhura to the surface of the planet Halka to demand that the Halkans hand over their dilithium crystals to the Terran Empire. When the party were beamed back to the Enterprise, an electric storm caused the party to transpose with their primary universe counterparts. However, the landing party were later put back into their correct reality.

After the landing parties returned to their respective universes, the Spock of the primary universe told his Dr. McCoy and Captain James T. Kirk that he found their counterparts to be "brutal, unprincipled, uncivilized, treacherous; in every way splendid examples of Homo sapiens, the very flower of Humanity." (TOS episode: "Mirror, Mirror")

Mirror Universe TrilogyEdit

In one permutation of the mirror universe, Dr. McCoy was hanged outside Starfleet headquarters in 2267 along with Montgomery Scott, Janice Rand, Willard Decker, Geoffrey M'Benga, David Garrovick and Marlena Moreau. (TOS novel: Dark Victory)

Star Trek: Mirror UniverseEdit

McCoy's predecessor as the Enterprise's chief medical officer was Phillip Boyce. (TOS - Mirror Universe short story: "The Greater Good")

On the orders of the Empire, he tortured his father David McCoy to death at some point prior to 2267.

In the months following Spock's assassination of Captain Kirk, McCoy became more and more suspicious of the actions that Spock was taking, such as persuading Troyius and Elas to become allies, which violated orders from the Empire. Lieutenant Commander Scott and Lieutenant Uhura shared his concerns and together they plotted to remove Spock from command of the Enterprise. However, as Uhura began to carry out their plan, she was disintegrated by the Tantalus field, and McCoy's criticisms were silenced.

McCoy eventually died in 2269 of the fatal disease known as xenopolycythemia, indicating that in the mirror universe, either the Enterprise crew never encountered Yonada, or they simply destroyed the vessel. He was succeeded as the Enterprise's chief medical officer by Jabilo M'Benga, who continued to serve in that position until at least 2287. (TOS - Mirror Universe novel: The Sorrows of Empire)



ISS Enterprise (NCC-1701) personnel
Robert AprilPhillip BoyceChristine ChapelPavel ChekovJ. Mia ColtRobert D'AmatoWillard DeckerMichael DeSalleFeinFinneyKarl FranzGaffneyDavid GarrovickHadleyIdelsonIliaJames T. KirkWinston KyleRoger LemliJabilo M'BengaLeonard McCoyMarla McGiversMarlena MoreauNumber OneCarolyn PalamasElizabeth PalmerChristopher PikeJanice RandKevin RileySaavikMontgomery ScottElizabeth SherwoodSolokSpockStangHikaru SuluNyota UhuraXonunnamed ISS Enterprise personnel TerranEmpire
Chief medical officers of the starships Enterprise
Enterprise (NX-01) Phlox NX01patch
USS Enterprise (NCC-1701) Poole-AprilBoycePiperMcCoyChapel Enterprise med insignia
USS Enterprise (NCC-1701) (Kelvin timeline) PuriMcCoy 2250s alt sci badge
USS Enterprise (NCC-1701) (other alternate realities) McCoyBoyceCarlottiM'Benga
USS Enterprise (NCC-1701-A) McCoy Starfleet 2280s insignia
USS Enterprise (NCC-1701-A) (alternate realities) Carlotti
USS Enterprise (NCC-1701-B) MetcalfeMichaelsMcCoyMorell
USS Enterprise (NCC-1701-C) CasadoSternAristide
USS Enterprise (NCC-1701-D) CrusherPulaski Starfleet 2360s insignia
USS Enterprise (NCC-1701-D) (alternate realities) Ogawa
USS Enterprise (NCC-1701-E) CrusherStevenson Starfleet 2370s insignia
ISS Enterprise (NX-01) Phlox TerranEmpire
ISS Enterprise (NCC-1701) BoyceMcCoyM'Benga
ISS Enterprise (ICC-1701-D) Crusher


One of the mirror McCoy's uniform decorations was a sideways version of the Starfleet outpost assignment patch seen in TOS episodes: "Balance of Terror", "Arena".


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