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In the mirror universe, Professor Jennifer Sisko was a Terran scientist in the employ of the Klingon-Cardassian Alliance during the 2370s. She was able to get her position as a scientist by coming from one of the few privileged Terran families and "cooperated" with Alliance officials.
She was married to Captain Benjamin Sisko, but their relationship encountered a never-ending torrent of problems; such as Sisko's liking of other women, fighting, his ship the Denorios, Sisko's constant promise to change, never listening to her, never wanting to talk, caring only about himself etc. This led Jennifer to adopt a cold attitude and hard veneer towards him and they separated in 2366.
Working for the AllianceEdit
Five years later, Sisko began the Terran Rebellion, and Intendant Kira Nerys of Terok Nor assigned her the task of creating a new transpectral sensor array that would allow Alliance ships to locate every rebel base in the Badlands and "disarm" the rebels. Jennifer, though knowing it was more likely the rebels would be massacred, felt upset over all the death and destruction the rebels had caused, the worsening treatment for the Terran population in response to the rebellion, especially the knowledge that Sisko himself was leading the rebellion. This compelled her to work on the array, believing that the fighting must end and that the rebels could reach a peaceful settlement when confronted and life for Terrans everywhere could be improved.
The rebellion received word from their sources that Jennifer was nearly finished in her development of the array. To make sure Jennifer never finished the project and hoping to gain a rebel with knowledge, Sisko took a small fighter to Terok Nor convinced he could convince her to switch sides, but was intercepted by the Cardassians and killed. Jennifer felt nothing after hearing about his apparent death.
Suddenly, Sisko, seemingly alive and well, was captured after a second attempt to reach Terok Nor and summoned Jennifer as he wished to meet with her. During the argument, Sisko shook her to the core by pointing out she was a prisoner of the Alliance, but unlike the mine slaves, she didn't know it. When Sisko escaped and met Jennifer in a hallway, Jennifer decided to join the rebellion and escaped with Sisko off the station. Jennifer by this point, had realized that Sisko wasn't her Sisko, and bid good-bye to him as he journeyed back to his universe. She later learned of Sisko's true nature from Miles O'Brien. Jennifer, now serving the rebellion, used her knowledge to counteract the development of other Alliance weapons. (DS9 episode: "Through the Looking Glass")
Working for the RebellionEdit
In 2372, she aided in the development of the Defiant and helped create the strategy that eventually overcame the Alliance forces on Terok Nor, allowing the rebels to take the space station and capture Kira Nerys. Though Jennifer and Smiley were confident the Defiant would be ready for the imminent Alliance counterattack, the Defiant encountered several significant technical faults that prevented it from becoming operational and Sisko didn't know how to repair it.
Desperate for any ideas, Jennifer had the idea of recruiting Sisko, the USS Defiant's designer, to help complete the repairs by kidnapping his son, Jake Sisko. Jennifer then travelled to Deep Space 9, using a multi-universal transporter, seemingly there to deliver the good news and to catch up with Sisko. Jake instantly bonded with Jennifer, and she used it to convince Jake to come with her to the mirror universe for a visit. Sisko later followed, and agreed to repair the Defiant in time for the attack.
Meanwhile, Sisko chastised her for using such unorthodox methods and demanded that she leave Jake alone, but refused as she had already grown attached to him. It seemed future plans would be made between them, but the Alliance fleet arrived earlier than expected, so Sisko left to command the finished-Defiant while Jennifer escorted Jake to the transporter to transport him back to his universe. Before she could, however, Kira Nerys escaped rebel custody and held Jennifer and Jake hostage. Kira intended to present Jennifer to Regent Worf as a gift while planning to kill Jake as she had no use for him. However, just as the Intendant fired her phaser, Jennifer leapt out in front of him and took the shot instead. Kira then fled the station while Jake got Jennifer to the infirmary. Jennifer shared one last talk with Sisko, where they admitted they loved each other, and she died. (DS9 episode: "Shattered Mirror")
The Alliance hopes for a transpectral sensor array died with Jennifer, as it was mentioned that all her work was sabotaged upon her defection and was being vainly reconstructed at Ardana. (VOY - Mirror Universe novel: The Mirror-Scaled Serpent)
- ST novel: Dark Passions, Book Two
- ST - Seven Deadly Sins novella: Freedom Angst
- DS9 episode: "Through the Looking Glass"
- DS9 episode: "Shattered Mirror"
|Terok Nor personnel|
| Cardassian Union|
and Cardassian-allied personnel
|Basso Tromac • Boheeka • Corat Damar • Datar • Skrain Dukat • Dulath • Hadar • Mavek • Narat • Oran • Parek • Sigol Rusot • Gaten Russol • Thrax Sa'kat|
| Bajoran Provisional Government|
and Bajoran-allied personnel
|Jabara • Kellec Ton • Kira Nerys • Odo • Rom|
|Mirror universe Terok Nor personnel|
|Klingon-Cardassian Alliance||Elim Garak • Kira Nerys • Odo • Jennifer Sisko • Telok|
|Terran Rebellion||Julian Bashir • Sam Bowers • Jadzia Dax • Michael Eddington • Keiko Ishikawa • Leeta • Enrique Muñiz • Nog • Miles O'Brien • Jennifer Sisko • Luther Sloan • Lon Suder • Ezri Tigan • Tiron|