The Mirror Universe is a parallel world to the standard Star Trek universe, where instead of the Federation there was the Terran Empire. Following the events of an episode of Star Trek: The Original Series, the Empire weakened and fell. Since then the Klingon-Cardassian Alliance has enslaved the Terrans. Deep Space Nine's counterpart, Terok Nor, is a seat of power for the Alliance in the formerly-Terran-occupied Bajoran sector and an ore processing facility ruled by Intendant Kira. Characters in the Mirror Universe resemble their standard universe counterparts but have radically different, often opposite character traits. The Mirror Universe is seen or referenced in "Crossover," "Through the Looking Glass," "Shattered Mirror," "Resurrection," and "The Emperor's New Cloak."
General Mirror Universe Tropes
- Alternate Self
- Crapsack World
- Didn't See That Coming: Terok Nor's leaders would have realized that a slave revolt was imminent if they'd actually paid attention to what was going on around them. Several slave escapes combined with the growing frustration among the Terrans should have tipped them off. However, Intendant Kira was too absorbed in power and sensual indulgences, Gul Garak was too absorbed in trying to eliminate Intendant Kira, and Mirror!Odo was too absorbed in indulging his sadism to notice.
- Evil Counterpart: Played with. Some of the Mirror Universe counterparts are evil and depraved. Others, while flawed, are not evil per se.
- Expy: The mirrorverse characters, particularly in early episodes, have some glaring similarities to the central characters of Blake's 7. In particular, Kira is Servalan, O'Brien is Vila, Sisko is Blake, and Bashir is Avon.
- Fantastic Racism: Several Non-Terran characters exhibit this toward the Terran slaves.
- Good Colors, Evil Colors: Several of the Mirror Universe characters, such as Intendant Kira and Mirror!Odo, wear black.
- Homoerotic Subtext: Which can lead to Unfortunate Implications, given the long-standing and notorious failure of any Star Trek TV series until Discovery to portray any mainstream-universe characters as gay or bisexual in anything other than fantastic metaphor or extremely deniable innuendo.
- Hotter and Sexier: Eventually the fanservice aspects took over from the Darker and Edgier version.
- Killed Off for Real / Anyone Can Die: Given that this does not affect the main universe's characters, it happens often: the mirror versions of Sisko, Odo, Dax, Quark, Rom, Nog, Garak and Vic Fontaine all die. This becomes a key plot point when the "real" Benjamin Sisko is abducted to stand in for his mirror counterpart.
- Notably averted for prime-universe's usual Butt-Monkey, O'Brien.
- Made a Slave / Slave Race: Terrans.
- Mirror Universe
- Slave Revolt: The Terrans eventually revolt against the Alliance and wage an ongoing resistance.
- We Will Use Manual Labor in the Future
Characters in the Mirror Universe
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The chief authority of the Terok Nor station, whom Kira encounters in "Crossover." Intendant Kira is one of the series' longest-running villains.
- Anything That Moves / Depraved Bisexual: In her first appearance, Intendant Kira was intrigued by her doppleganger Major Kira; according to Nana Visitor, this was an expression of her narcissism. However, later Mirror Universe episodes depicted her as insatiably lusting after every attractive man or woman in sight.
- Even Evil Has Loved Ones: She genuinely loved Mirror Sisko.
- Her comments after Mirror!Odo's death suggest that she cared about him, or at least respected him as a colleague and resented the loss of his valuable assistance in running the station.
- Fantastic Racism: She really despises humans.
- Flanderization: Nana Visitor considered that her shift from a narcissistic and specific interest in Major Kira in the first episode to indiscriminate Depraved Bisexuality later on was an example of this.
- Hell-Bent for Leather: Mirror!Kira is seen more often than not in a skin tight leather under piece.
- Karma Houdini: Last seen heading for an escape pod.
- Narcissist: What else do you call someone who literally falls in love with herself?
- Sexy Walk: Particularly noticeable in "Resurrection" where the Intendant dresses up like Major Kira to pull a heist, and the only means of telling them apart is Mirror Kira's vampish walk.
- Screw Yourself: She wants to screw regular Kira at least, but it doesn't actually happen.
- Shadow Archetype: Intendant Kira is who Kira Nerys might have become had she lived as an oppressor and not one of the oppressed.
- One can draw parallels between Intendant Kira and standard universe Gul Dukat, whom standard universe Kira despises. For instance, both take lovers from the groups they oppress (Bajoran "comfort women" for Dukat; Mirror!Sisko for Intendant Kira). Also, both condescendingly see themselves as kinder to those they oppress than their colleagues, and seem incapable of understanding why their "benevolence" is not reciprocated with devotion.
Second-in-command at Terok Nor under Intendant Kira.
- Asshole Victim: Nobody mourned for him. Even his actor Andrew Robinson was glad he died.
- Continuity Nod: "I do admire a well-tailored gown."
- I Will Punish Your Friend for Your Failure: He threatens to have Bashir killed if Kira doesn't assist him in a plot to eliminate Intendant Kira.
- Hoist by Their Own Petard: Mirror!Ezri injects him with the agonizing instant-death virus he was threatening Quark and Rom with.
- Make an Example of Them: He has a fondness for it, so much so that Intendant Kira chided him for doing it too often.
- Shadow Archetype: To Garak. He has many of the traits Enebrain Tain and Mila mention Garak displayed pre-exile; pettiness, vindictiveness, and a fondness for torture. The difference is he lacks regular Garak's sophistication, and subtlety (and going by his actions, any of Garak's intelligence).
- Smug Snake: He's more or less a Card-Carrying Villain who is too obsessed with taking Kira's job to be competent. Quark and Rom mock him for being nowhere near as good as the Garak they know.
- The Sociopath
- The Starscream: Mirror Sisko mentions Garak spent every moment on Terok Nor trying to overthrow the Intendant, to absolutely no success. Going by his comments, the attempts weren't anywhere near subtle.
Intendant Kira's boss. A high ranking member of the Klingon-Cardassian Alliance.
- Ax-Crazy: He's prone to fits of violent rage.
- Bad Boss: At one point, he kills a subordinate just to test out a spiked gauntlet. Judging from everyone's lack of reaction, it's a fairly regular occurrence for the Regent.
- Bigger Bad: As the Intendant's boss, he's supposedly the true villain of the mirror universe episodes. However, the Intendant is almost always the greater threat.
- Villains Out Shopping: At one point, he is shown enjoying Zek's snuff.
- You Are Not My Type: Not interested in using Garak as his Sex Slave, despite him being chained to his chair.
A Terran slave who was one of the first to join Mirror!Sisko's rebellion. Following Mirror!Sisko's death, Smiley took over as the rebellion's leader.
- Anti-Hero: He's a nice guy by Mirror Universe standards, but he's not above kidnapping people to force them to help him.
- Big Good: After taking over the rebellion.
- Ironic Nickname: Mirror!Sisko named him "Smiley" because he hardly ever smiled back when he was a slave.
- Reasonable Authority Figure: He's just as level headed as his normal universe counterpart, so he becomes this once he becomes the rebellion's leader.
A brutal slave overseer who supervises the ore processing operations of Terok Nor.
- Asshole Victim
- The Bully: He takes perverse delight in taunting and physically abusing Bashir.
- Control Freak: He's a sadistic overseer who imposes his "Rules of Obedience" on the slaves, so he's got some serious control issues. One of his "Rules of Obedience" even forbids joking.
- Doesn't Like Guns: Noticeably averted.
- Evil Is Petty: He bullies Bashir and imposes arbitrary rules on the slaves simply because he can.
- Informed Ability: Intendant Kira praised his ability to run an efficient ore processing operation and maintain order among the slaves. However, he allowed a thorium containment unit to go unrepaired, despite Mirror!O'Brien's warning, resulting in a catastrophic thorium leak. Furthermore, at least three Terran slaves escaped under his watch. Finally, he assigned Bashir to a task for which Bashir was physically unsuited, as Mirror!Odo lampshaded later in the episode.
- Killed Off for Real
- Laser-Guided Karma
- Ludicrous Gibs: When Bashir shoots him with a phaser during the Terran slave uprising, Mirror!Odo messily explodes.
- Psychotic Smirk: As seen here◊.
- Shadow Archetype: Mirror!Odo is who Odo might have become if his deep-seated need for order were not restrained by empathy or morality.
- Also, whereas Odo was a fair and reasonable security officer during the Cardassian occupation, Mirror!Odo is a petty bully who clearly enjoys abusing his power. In other words, Mirror!Odo embodies everything that Odo hated about the Cardassian occupation of Bajor.
A Terran favored by Intendant Kira who commands a raiding ship on behalf of the Alliance. He later turns on his oppressors.
- The Dog Bites Back
- Dead Person Impersonation: After Mirror!Sisko dies, Mirror!O'Brien brings standard universe Sisko into the Mirror Universe to impersonate him.
- Handsome Slave Boy: Intendant Kira takes him as her lover. Being a slave, Mirror!Sisko wasn't in any position to refuse, however.
- Happiness in Slavery: Subverted. While he appears happy on the surface, he admits to standard universe Kira that he's merely made the best of a bad life for himself.
- Heel–Face Turn
- Killed Off for Real
- Slave Liberation
- Sudden Principled Stand
- The Revolution Will Not Be Civilized: Even after starting the rebellion, he retains his thuggish demeanor. Smiley remarks that this would have caused trouble if he had lived longer.
The estranged wife of Captain Sisko. A Terran scientist working with the Alliance.
- Heel–Face Turn: Normal!Sisko convinces her to switch sides.
- The Quisling: A sympathetic version. She's working with the Alliance because she does not trust her husband's motives in starting the rebellion.
- Redemption Equals Death: In "Shattered Mirror", after manipulating Jake into coming to the Mirror Universe and blackmailing Benjamin into a making a Defiant for the rebellion, she sacrifices herself to protect Jake from the Intendant.
- Working with the Ex: Defied. She is working with the Alliance because she refuses to do this.
A Bajoran criminal who comes to the normal universe seeking asylum.
- Heel–Faith Turn: An orb experience convinces him to turn against the Intendant.
- It's What I Do: Although tempted by the prospect of a normal life with Kira, he knows he'll stuff it up and so returns to the Mirror Universe to be a thief.
- Lovable Rogue: He may be a criminal, but he still has the charm of the normal universe's Bareil, perhaps even more-so, being a bit more laid back and worldly.
- The Mole: He is working with the Intendant to steal the Orb of Contemplation.
- Outlaw Couple: With Intendant Kira.
- What Happened to the Mouse?: He's confident that he can talk the Intendant out of executing him, but we never see him again, so he might not have.
An unjoined Trill who works for anyone who will pay her.
- Action Girl: She's considerably more dangerous than her normal universe counterpart.
- Butch Lesbian: She was at one point Intendant Kira's lover before her Heel–Face Turn, and was last seen being invited to a "debriefing" by Leeta. Not once during the episode did she show any interest in any male character.
- It's revealed in one Mirror Universe novel that Ezri becomes Leeta's wife after the events of The Emperor's New Cloak, and then widow in another novel.
- Fetish: Quark's first assumption is Ezri is acting out a fantasy roleplay. Quark is entirely willing to play along.
- Heel–Face Turn: After the Intendant kills Mirror!Brunt, she betrays her and saves the Ferengi.
- Only in It for the Money: She's a true mercenary, which has not endeared her to the rebellion. Subverted when it turns out she's working for her lover, the Intendant.
A violent Terran member of the rebellion.
- Evil Counterpart: He's how "our" Bashir would be if his arrogance and lust for adventure were not tempered by his doctor-compassion and general chivalry. Which leads to potential Fridge Horror if one speculates Mirror!Bashir also has genetic enhancements....
- Number Two: By "The Emperor's New Cloak", he has become this to Smiley.
- Token Evil Teammate: Out of all the member of the rebellion, he tends to favor the most brutal answers to problems.
A Trill member of the rebellion and Mirror!Sisko's mistress.
A subversive bartender on Terok Nor.
- Arrested for Heroism: He's beaten and executed for helping Terran slaves escape from Terok Nor.
- The Bartender: Like standard universe Quark, he runs a bar aboard Terok Nor.
- Evil Counterpart: Inverted. He's much like Quark, except that he embodies more courage and compassion by quietly trying to help the slaves.
- Slave Liberation
Quark's brother and a member of the rebellion.
Rom's unscrupulous son.
- Crouching Moron, Hidden Badass: Unlike most Ferengi, he's pretty good in a fight.
- Jerkass: In addition to being quite abrasive, he has no issue with the Alliance killing his family, as it allows him to inherit the bar.
- He Knows Too Much: The Intendant kills him after he mentions that he's the only one who knows she's escaped.
Mirror!Ezri's partner in crime.
- Incompatible Orientation: He's in love with Mirror!Ezri, who, in Brunt's words is "very selective when it comes to men." Brunt has long since accepted it though.
- Morality Pet: To Mirror!Ezri. His death at the hands of the Intendant convinces her to pull a Heel–Face Turn.
- Nice Guy: In a jarring contrast to his normal universe counterpart, Mirror!Brunt is quite possibly the nicest person in the Mirror Universe.
A Vulcan member of the resistance.
One of Mirror!Ezri's minions. Unlike his normal universe counterpart. Mirror!Vic is not a hologram.
A Bajoran living on Terek Nor.