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This character is a member of the Riker family native to the mirror universe.
For the primary universe counterpart, see William T. Riker.

In the mirror universe, William T. Riker was a Terran male who lived during the 24th century.


References from numerous sources establish that the various depictions of the mirror universe may not take place in concurrent timelines, meaning there could be a number of divergent alternate reality versions of this topic that do not share the same continuity. The references below this note are separated into subsections to minimize confusion regarding the divergences.

Star Trek: Mirror Universe

In the mirror universe, William T. Riker was a privateer who was loyal to no one but himself. Riker was born on Luna as the son of Kyle Riker, an abusive father who beat Riker for years. When he was 15 years old, Riker killed his father with a Klingon mek'leth and escaped the Sol System. Riker worked for both the Klingon-Cardassian Alliance and the Terran Rebellion, whichever paid him the most. Riker had a problem with authority, getting furious with anyone who attempted to tell him what to do. He was hired by the Terran Rebellion to help them steal files on the Alliance from Lru-Irr, run by a Bajoran scientist named Jaza Najem. He was partnered with Rebel operatives Ree, Christine Vale and Tuvok. Once the Rebels and Riker reached the files, it was revealed that Vale was actually a Terran operative of the Alliance and that Jaza was her lover. She then proceeded to kill Ree and call in several Klingon and Cardassian soldiers. Tuvok and Riker managed to defeat them; Riker captured Vale and viciously raped and then killed her, before proceeding to abandon the Rebels and leave with Ian Andrew Troi's ship, the Deanna. But while in orbit, Riker was killed when the Deanna was destroyed by Alliance disruptor blasts. (TTN - Mirror Universe short story: "Empathy")

Dark Mirror

In one permutation of the mirror universe in which the Terran Empire never fell, Commander William T. Riker was a Terran who served in the Imperial Starfleet of the 24th century. In the 2360s, Riker served as first officer aboard the ISS Enterprise-D under the command of Jean-Luc Picard. (TNG novel: Dark Mirror)

The source material in Dark Mirror contradicts the canon version of the mirror universe in many other ways, including this depiction of a mirror universe where the conflict between Klingons and Terrans ended up opposite compared to canon.

Dark Victory

An alternate version of Riker was Emperor Tiberius's commandant of security. Commandant Riker spearheaded the capture of Intendant Spock, who attempted to overthrow Regent Picard's strike into the counterpart universe. In this reality, Riker's face was disfigured as a result of his harsh life—with a large scar from an iopene cutter. (ST novel: Dark Victory)

Q & A

In one possible permutation of the mirror universe which was encountered through a quantum fissure in 2380, Riker served as the first officer of the ISS Enterprise-E, a Terran Empire vessel under the command of Captain Jean-Luc Picard, until he was assassinated by Lore, who succeeded him in that position. (TNG novel: Q & A)

Mirror Broken

In the 2360s, Riker was recruited by Captain Picard to act as XO aboard the new ISS Enterprise-D. (TNG - Mirror Broken comic: "Issue 2")



First officers of the starships Enterprise
Enterprise (NX-01) TuckerT'Pol Enterprise assignment patch.
USS Enterprise (NCC-1701) KirkShundreshSimonPikeNumber OneSpockDeckerSulu USS Enterprise assignment insignia.
USS Enterprise (NCC-1701) (alternate reality) SpockKirk 2250s alt cmd badge.jpg
USS Enterprise (NCC-1701) (other alternate realities) ThelinKirkGav USS Enterprise assignment insignia.
USS Enterprise (NCC-1701-A) SuluSpock Starfleet 2280s insignia.jpg
USS Enterprise (NCC-1701-B) DaneSuluLinojj
USS Enterprise (NCC-1701-C) CarmonaHolmesal-HalakTholav
USS Enterprise (NCC-1701-D) RikerKurnStoneShelbyData Starfleet 2360s insignia.jpg
USS Enterprise (NCC-1701-D) (alternate realities) PicardRikerWorfLa Forge
USS Enterprise (NCC-1701-E) RikerDataMaddenWorf Starfleet 2370s insignia.jpg
USS Enterprise (NCC-1701-E) (alternate realities) RikerPicardDataMaddenRo
USS Enterprise (NCC-1701-F) (STO alternate reality) Winters STO alt cmd badge.jpg
ISS Enterprise (NX-01) ArcherT'Pol Emblem of the Terran Empire.
ISS Enterprise (NCC-1701) Number OneKirkSpockScottDeckerRileySaavikXon
ISS Enterprise (NCC-1701-D) Riker
ISS Enterprise (NCC-1701-E) RikerLore
Free Starship Enterprise K'Ehleyr
ISS Enterprise-D personnel
Reginald BarclayBeverly CrusherWesley CrusherEileen HessanGeordi La ForgeMiles O'BrienJean-Luc PicardWilliam T. RikerMark StewartDeanna TroiWorf Seal of the Terran Empire Starfleet.
ISS Enterprise-E personnel
Reginald BarclayLoreMiles O'BrienJean-Luc PicardWilliam T. Riker Seal of the Terran Empire.