For other uses, see Through the Looking Glass.

Sisko is brought to the alternate universe, where he must convince the counterpart of his deceased wife to stop working for the Alliance.


This article or section is incomplete
This article is marked as lacking essential detail, and needs attention. Information regarding expansion requirements may be found on the article's talk page. Feel free to edit this page to assist with this expansion.



Julian Bashir (mirror)Jadzia Dax (mirror)Elim Garak (mirror)Kira Nerys (mirror)MardelNalan BalMiles O'Brien (mirror)OdoQuarkRom (mirror)Benjamin SiskoJennifer Sisko (mirror)Taymar BernTuvok (mirror)
Referenced only 
MornQuark (mirror)Benjamin Sisko (mirror)Jennifer Sisko


BadlandsBajorDeep Space 9Operations centerOre processing centerStation commander's officeTerok Nor
Referenced only 


Galor-classTerran raiderVor'cha-class
Referenced only 

Races and culturesEdit

BajoranBajoran (mirror)Cardassian (mirror)ChangelingFerengiFerengi (mirror)HumanHuman (mirror)Klingon (mirror)Trill (mirror)Vulcan (mirror)
Referenced only 
Romulan (mirror)

States and OrganizationsEdit

Bajoran MilitiaKlingon-Cardassian AllianceStarfleetTerran RebellionUnited Federation of Planets

Other referencesEdit

alternate universeintendantlogicmirror universemultidimensional transporteroverseerplasma stormself destructTerrantranspectral sensor arraytransportervolevole fightingVulcan lute


Related mediaEdit


Notable cast and crewEdit

External linksEdit


Stories featuring the mirror universe
Enterprise episode: "In a Mirror, Darkly" • prose: Age of the Empress • "Nobunaga"
Discovery episode: "Into the Forest I Go" • "Despite Yourself" • "The Wolf Inside" • "Vaulting Ambition" • "What's Past Is Prologue"
The Original Series episode: "Mirror, Mirror" • comics: The Mirror Universe Saga ("... Promises to Keep" • "Double Image" • "Deadly Reflection!" • "The Tantalus Trap!" • "Masquerade!" • "Behind Enemy Lines!" • "The Beginning of the End..." • "Homecoming...") • Fragile GlassMirror Images ("Issue 1" • "Issue 2" • "Issue 4" • "Issue 5") • "The Mirror, Crackedprose: SpectreDark VictoryPreserverThe Sorrows of Empire • "Ill Winds" • "The Greater Good" • video game: Shattered Universe
Kelvin timeline comics: TOS - Mirrored comics: "Part 1", "Part 2" • TOS - Parallel Lives comic: "Part 2" • TOS - Live Evil comics: "Part 1", "Part 2", "Part 3"
The Next Generation comics: "Mirror Images, Issue 3" • Mirror Broken (PreludeIssue 1Issue 2Issue 3Issue 4Issue 5) • prose: Dark MirrorThreeThe Worst of Both Worlds • "The Traitor" • "The Sacred Chalice" • "For Want of a Nail" • Rise Like Lions
Deep Space Nine episodes: "Crossover" • "Through the Looking Glass" • "Shattered Mirror" • "Resurrection" • "The Emperor's New Cloak" • comic: "Enemies & Allies" • prose: Dark PassionsWarpathSaturn's ChildrenFearful Symmetry • "A Terrible Beauty" • The Soul Key • "Freedom Angst" • Disavowed
Voyager prose: The Mirror-Scaled Serpent • "Bitter Fruit"
New Frontier comics: Turnaround ("Part I" • "Part II" • "Part III" • "Part IV" • "Part V") • prose: Cutting Ties • "Homecoming"
Klingon Empire prose: "Family Matters" Titan prose: "Empathy" Vanguard prose: "The Black Flag"
Miniseries and anthologies RPG sourcebook: Through a Glass, Darklycomics: The Mirror Universe SagaTurnaroundMirror Imagesprose: Mirror Universe TrilogyMirror Universe (Glass EmpiresObsidian AlliancesShards and Shadows)


published order
Previous episode:
Distant Voices
DS9 episode produced Next episode:
Improbable Cause
Previous episode:
Distant Voices
DS9 episode aired Next episode:
Improbable Cause
chronological order
Previous Adventure:
Pocket Next Adventure:
Heroes and Demons