Seska Seska was a female Cardassian operative of the 24th century Cardassian Union . On one fateful mission , she was genetically altered to appear Bajoran in order to infiltrate the Maquis on the " Val Jean " under Chakotay , and use her relationship with him to steal Maquis secrets . However , she was forced to join the crew of the when it and the " Val Jean " were stranded in the Delta Quadrant . Unwilling to live by Starfleet rules , she later left to join with a Kazon , Culluh , in an unsuccessful attempt to capture the " Voyager " . ( ) History . The Maquis and USS " Voyager " . Seska first joined the Maquis in 2370 while undercover for the Cardassian Union . ( ) She served under Chakotay aboard the Maquis raider " Val Jean " when it was catapulted into the Delta Quadrant by the ' s array in 2371 . ( ) She was close friends with B ' Elanna Torres and on " Voyager " was granted the field commission of ensign , initially in the science department but later moving to engineering . Not very fond of the Federation , Starfleet , and their " mighty principles " , she often expressed her disapproval and annoyance with their rules and made it clear to Chakotay that if the situation ever necessitated it , she would support a Maquis mutiny . ( ) She was involved with Lieutenant s Torres , Joe Carey , and Tuvok in a covert attempts to acquire spatial trajector technology from the Sikarian s , behind Captain Janeway ' s back . When their plan to steal the technology failed , she attempted a cover - up , but Torres held her back , stating that she did not want to lie anymore – something Seska found rather disappointing . ( ) Her disdain of Starfleet and Starfleet principles , such as the prime directive , lead to her distancing herself from the crew further , ultimately leading to collaboration with the Kazon - Nistrim , offering them replicator technology in exchange for their help in this unknown part of the galaxy . She did not believe that something simple like replicators could shift the balance of power in this part of the quadrant as her primary goal was to get back home . ( ) Her true origins remained undiscovered until the time she helped transfer replicator technology to the Nistrim and was seriously injured during the transfer . The Doctor ' s subsequent examination revealed her true Cardassian origin . She denied this fact , claiming that she had suffered from Orkett ' s disease as a child and received an extensive transfusion from a Cardassian to survive . When Chakotay confronted her , revealing the cover - up , she finally confessed to everything and openly expressed her dislike for Captain Janeway ' s decision , calling her a fool for having gotten them stranded in the Delta Quadrant and being unwilling to give the Kazon what they wanted so " Voyager " had an ally . She also expressed her disappointment in Chakotay , whom she believed had naively followed Janeway , and stated that she couldn ' t imagine why she had ever loved him . Before she could be further questioned , she escaped " Voyager " by transferring to a Kazon raider . ( ) Collaboration with the Kazon . After Seska left " Voyager " , she immediately restored some elements of her Cardassian physiology and became the consort of First Maje Culluh , leader of the Kazon - Nistrim sect . Culluh had a thirst for power and she used that to manipulate him to do what she wanted . Equipped with Starfleet , Maquis , and Cardassian tactical experience , she provided the Nistrim with information about " Voyager " and schemed ways of stealing the ship and its technology . In order to capture Chakotay , she planned a successful attempt to steal a transporter control module from " Voyager " , knowing that he would come after it . Even though Chakotay was able to destroy the module , he was captured and heavily beaten during interrogation . During his capture , Seska tried to get close to Chakotay but he rejected her advances , later laughing at Culluh , telling him that when Seska was through with him , she would kill him . Shortly after Chakotay was rescued , Seska contacted him , claiming that she had impregnated herself by extracting his DNA and that she was carrying his child . At the same time , she had also told Culluh that the child belonged to him , thus using the baby to manipulate both men . ( ) Later that year , she and Culluh were contacted by Janeway and her crew who proposed building an alliance with the Nistrim in exchange for providing them with emergency supplies where needed . Culluh – who did not want a woman to dictate the terms of the agreement – insisted on a crew exchange as condition of the alliance ; a proposal Janeway found unacceptable , resulting in the end of further negotiations . When " Voyager " formed an alliance with the Trabe – an enemy of the Kazon – instead , Seska was angered , accusing Culluh of having let " Voyager " slip away because of his attitude , which she promised would one day be his undoing . Even though Culluh did not like being talked to like that by a woman , she always managed to manipulate him to look the other way and acquiesce to her demands and scheming . ( ) Seska was not the only one disillusioned with Captain Janeway ' s policies : " Voyager " crewmember Michael Jonas also appeared to harbor resentment towards the Starfleet policies he had to live by and soon after Seska left , he contacted her , offering to collaborate with her and help sabotage the ship by supplying her and the Nistrim with vital information pertaining to " Voyager " . However , Janeway and Tuvok discovered Jonas ' s transmissions and through an elaborate plan were able to expose him . ( ) In late 2372 , Seska gave birth to the child she claimed to be Chakotay ' s . She immediately contacted him , claiming that Culluh had discovered that the child was not his and threatened to have the child be raised as a slave . This lured " Voyager " into a trap in which a Kazon operative named Tierna was able to enter the ship and detonate organic explosives in his blood stream while on board , disabling the ship ' s power systems and the primary computer core . Janeway was unable to activate the auto - destruct sequence in time and the ship was boarded by Kazon troops . Soon after Seska and Culluh took over the ship , they marooned its crew on a desolate planet named Hanon IV . During the Kazon occupation of the ship , Seska took stringent precautions against any possible threats , even questioning The Doctor ' s loyalty . That line of questioning was cut short when he revealed through a DNA analysis that her baby was actually half - Kazon , not Human , and thus not Chakotay ' s . This greatly disappointed Seska , who had been sure that the baby was half - Human and was hoping to forever trap Chakotay by her side . After taking over the ship , Seska and Culluh did not get very far , however , as most of the Kazon were ill - equipped to navigate and control the ship ' s complex and unfamiliar technology . In addition , Tom Paris – who had left " Voyager " in a shuttle prior to the Kazon attack to seek help – with assistance from Talaxian forces , as well as The Doctor and Lon Suder , was able to retake the ship . During the mission to recapture " Voyager " , Seska was mortally wounded in the resulting overload of the console she was at and only had a few minutes to live before she collapsed with her baby in her arms . Culluh discovered her body and escaped with their son just before the crew returned . ( ) Seska ' s legacy . At some point in the early days of " Voyager " s journey through the Delta Quadrant , Tuvok had created a holodeck training simulation program called " Insurrection Alpha " depicting a Maquis mutiny . At the beginning of their journey he had perceived such a rebellion to be very real threat and had devised a program to train Starfleet personnel in case of such a contingency . However , when he realized that the two crews were getting along better than anticipated , he deleted the program and never told anyone about it , fearing that it would trigger the very mutiny he wanted to avoid . At some point , Seska had discovered the unfinished program , which ended with Janeway and Paris returning from an away mission and beginning their attempts to retake the ship . Seska secretly reprogrammed it to act as a trap , arranging for the program to essentially ' turn ' on Tuvok should he reactivate the narrative parameters file ( i . e . attempt to edit the program ) . Over a year after Seska ' s death , the program was discovered by Torres and played several dozen times by various crewmembers , who found the story line very intriguing . When Tuvok and Tom Paris attempted to alter the program by writing an ending for it , Seska ' s trap was triggered and both men became trapped in the holoprogram with the safety protocols off . However , Captain Janeway was able to reprogram portions of the simulation to allow Tuvok and Paris to escape , simultaneously causing the " death " of the holographic Seska after giving Tuvok the chance to program a phaser rifle Seska was using to overload . ( ) In 2377 , a temporal distortion shifted sections of " Voyager " into different timeframes with Chakotay being the only one capable of traveling between timeframes , unaffected by the temporal distortion after being given a chroniton - infused serum by The Doctor . One of the areas he visited was engineering during the Kazon - Nistrim takeover of the ship in 2372 , where he encountered Seska and a number of Kazon trying to gain control of the ship after Engineering was isolated from the rest of " Voyager " . Although he was forced to tell Seska the truth about what had happened to try and restore " Voyager " to normal , when Seska learned that the Kazon were defeated in their efforts , she attempted to stop Chakotay ' s efforts to restore the timeframe , holding a past version of Janeway hostage to try and make him modify the plan to return " Voyager " to her time , hoping that she could use this new foreknowledge to avert the crew ' s efforts to take back the ship . However , these plans failed thanks to the intervention of various allies Janeway and Chakotay had recruited from other time periods – such as future versions of Icheb and Naomi Wildman or a still - Borg Seven of Nine – and " Voyager " was successfully restored to its original configuration in the correct timeline , erasing Seska ' s memory of her encounter with the future Chakotay . ( ) Personal relationships . Chakotay . Seska and Chakotay were romantically involved sometime in the past , although they had eventually decided not to pursue their relationship any further . However , a certain attraction between the two still existed and when Chakotay once reminded Seska of their decision to not be together anymore , she laughed it off , joking that stranded in the Delta Quadrant , he didn ' t have all that many options . Despite being hesitant to pursue a romantic relationship with her , Chakotay nonetheless had a soft spot for Seska and when she was accused of sabotage and collaboration with the enemy , he was the only one taking her side until the truth about her betrayal came out . Chakotay was devastated to find that not only had she collaborated with the Kazon but that in fact she was a Cardassian spy . Even though she insisted that she had truly loved him and was not after his meager Maquis secret , he still felt betrayed . Shortly after she was exposed and before her departure from " Voyager " , she expressed her deep disappointment in Chakotay who had decided to take on the kind of " mighty Starfleet principles " she abhorred and believed to be a hindrance to their efforts to find a way back home . She wondered how she could ever have loved him and shortly after beamed off the ship . ( ) After this betrayal by Seska , Chakotay felt a great sense of shame and disappointment , because she had not only taken advantage of his trust but also because after everything he had done for her , she publicly humiliated him by turning out to have been a Cardassian spy who now had , once again , turned her back on him by defecting to the enemy . Seska ' s infatuation and obsession with Chakotay did not end after her departure and she resorted to any manipulation possible to bring him to her , such as the time she lured him into a trap in which he was caught and tortured by Culluh and his men unsuccessfully for information about " Voyager " . She also used that opportunity to impregnate herself by extracting Chakotay ' s DNA . After the baby was born , she once again lured him to her side by pretending that the child was in danger . Unable to abandon his child , Chakotay – as soon as he found out – pursued her ; a pursuit that lead to the capture of the " Voyager " by the Nistrim and to the crew being marooned on Hanon IV . Although The Doctor determined that the child was not Chakotay ' s son , even after Seska was killed when Paris and the Talaxians managed to retake the ship , Chakotay still seemed to be affected by his memories of their old relationship . ( ) When Seska had found Tuvok ' s " Insurrection Alpha " holonovel training program depicting a Maquis mutiny and reprogrammed it with the goal of trapping whoever played it into the program , she had programmed the novel to portray a holographic Chakotay to be strongly enamored by her , and the two were enthusiastically living out their old wild Maquis ways the way Seska had always pictured and dreamed it would be . ( ) When the Chakotay of 2377 found himself on " Voyager " during the Kazon control of the ship , he initially attempted to appeal to Seska by simply telling her what had happened , but when Seska tried to seduce and then force him to restore " Voyager " to her time period , Chakotay turned the tables on her by summoning other allies to aid him in retaking the ship , showing that he had moved on from any residual affection he had for her . ( ) B ' Elanna Torres . B ' Elanna Torres and Seska were somewhat kindred spirits not too unfamiliar with the strong emotions that come with anger . Both had also served in the Maquis under Chakotay ' s command and up until Seska ' s betrayal , they were good friends . At some point it even looked like Seska was warming up to the Starfleet crew , such as the time she and B ' Elanna were joking with and teasing young Harry Kim about his disastrous date with one of the Delaney sisters on the holodeck . However , unlike Torres who did make efforts to integrate into the crew , Seska rejected all that and chose a life more in tune with her Cardassian background . Torres pursued the spatial trajector technology of the Sikarian s after Seska manipulated her to feel sorry for her now that she could not see her brother on his birthday as promised . When their plan backfired , Seska wanted to cover everything up by deleting all evidence leading to them . Torres held her back , saying that she was no longer going to lie and instead would take responsibility for her actions ; a move that left Seska disappointed in Torres , accusing her of " having changed . " Torres viewed the change Seska mentioned as a compliment and even though she did feel betrayed after the truth about Seska came out , unlike Chakotay – she was able to put it behind her . ( ) Appendices . Apocrypha . In the " " novella " The Third Artifact " , part of " The Brave and the Bold , Book Two " , Seska ' s past as an undercover agent for the Cardassian Empire is explored . In there , Seska had been made an intelligence operative for the Obsidian Order in 2361 and by 2367 she underwent surgical operations to transform her Cardassian physiology into that of a Bajoran so she could infiltrate the Bajoran Resistance . After the Occupation of Bajor ended in 2369 , Seska was assigned to spy on the Maquis . Her mirror universe counterpart appeared in the novella " The Mirror - Scaled Serpent " and the novel " Rise Like Lions " . She was a Cardassian glinn serving in the Klingon - Cardassian Alliance who defected to the Terran Rebellion prior to 2371 . She was killed in " Rise Like Lions " .