Aamin Marritza Aamin Marritza was a male Cardassian member of the Cardassian military in the 24th century . In the 2350s , he served as the head file clerk at the infamous Gallitep labor camp on Bajor under Gul Darhe ' el . While at Gallitep , Darhe ' el praised Marritza ' s work as a " masterpiece of meticulous exactitude , " but Marritza took no pride in his commander ' s praise ; indeed , Marritza was so overcome with grief upon hearing the screaming and begging for mercy by the Bajoran s at the camp that he would often hide under his desk , covering his ear s and weeping . He served at the camp until its liberation in 2357 . Following the Cardassian withdrawal from Bajor , Marritza relocated to Kora II , where he became an instructor in filing at the Cardassian Military Academy . While on Kora II , he underwent cosmetic surgery to resemble Gul Darhe ' el . His plan was to convince the Bajorans that he was Darhe ' el so they would convict and punish him as a war criminal as a way to force Cardassia to acknowledge the atrocities committed during the Occupation of Bajor . He was consumed by guilt concerning his service to Darhe ' el and because he did nothing to help the Bajorans , to the point that he was willing to die to absolve himself and Cardassia of the sins of the occupation . He traveled to Deep Space 9 in order to be exposed as Darhe ' el . He had a rare disease , Kalla - Nohra Syndrome , for which the only cases were the result of a mining accident at the Gallitep forced labor camp . He claimed to be Marritza in order to convince the Bajorans that he was really Darhe ' el posing as Marritza . His plan was almost successful . He convinced Kira Nerys that he was the ' butcher ' of Gallitep , clouding her judgment by boasting of the atrocities at the labor camp and filling her with so much rage that she wanted him to be Darhe ' el , so that he could be tried and executed for his crimes . Marritza ' s deception and plan was unraveled by Odo , who discovered Marritza had been seeking information about Kira month s previously . Additionally , Odo found out that he put all of his personal affairs in order , resigned his professional position and provided handsomely for his housekeeper before his departure . He also learned of Darhe ' el ' s death from Gul Dukat , who crucially informed him that Darhe ' el hadn ' t been on Bajor when the mining accident that caused the Kalla - Nohra condition occurred by providing him with official records to validate these assertions . In addition , Doctor Bashir found that Marritza had his face changed to look like Gul Darhe ' el and was taking massive doses of a dermatiraelian plastiscine , a dermal regenerative agent . Kira promptly confronted him and gently brought the truth out , making him weep and admit the horror and grief he felt about what he had experienced and his sense of personal shame at not stopping the atrocities that had happened . Even with all the evidence against him , Marritza asked Kira to help him complete his plan so that Cardassia could face up to its evils . Kira , humbled by this revelation , was unwilling to be complicit in the execution of an innocent man , instead reflecting that Cardassia would be better if it had more men like him willing to face what his people had done . He was released , only to be fatally stabbed on the Promenade by a racist Bajoran named Kainon , not because he was Darhe ' el , but simply because he was a Cardassian . His death was mourned by Kira . ( ) Appendices . Background information . Aamin Marritza was played by actor Harris Yulin in his only " Star Trek " appearance . Marritza as seen on the computer monitor in 2357 was played by an unknown actor . The script for " Duet " provides the pronunciation of Marritza ' s name as " " A - min marr - IT - sa " " . Writer Peter Allan Fields was delighted that Yulin was cast in the role as he had been a fan of the actor for many years . " " I ' d always wanted to write for him , " " Fields explained , " " I was delighted that he wanted to do it . " " Executive producer Ira Steven Behr echoed Fields ' comments and gave some insight into the development of his character ; " " We would go into those long monologues and stand and rant and scream , and actually a lot of it , word for word , is in there . Cardassians love to speak . Garak loves to speak , Enabran Tain loves to speak . Dukat loves to speak - very slowly - and certainly Marritza loves to speak . " " ( " " , p . 65 ) Director James L . Conway thought Yulin , " " did a fantastic job . However , the makeup was three hours in morning and two hours at night and he had to get there at four in the morning . He was so tired that he had a very hard time remembering the lines , and we had a very hard time getting the performance . Then , it was one those performances where you don ’ t really know you have it until it ’ s cut together . He also didn ’ t like the ending . He got so invested in his character that he didn ’ t want his character to die at the end . He was trying to justify it and have him somehow survive , which almost never happens on a television show . The guest star never starts trying to change a script . He did , but mostly because he was so invested in the character . But it was one of those shows that , until it was edited , I didn ’ t realize how good it was . " " MTV Geek described Yulin as giving a , " " haunting , timelessly evocative performance " " in the episode , rating it number one of all " Star Trek " episodes ever produced . Apocrypha . Marritza also appears in the " " novel " Night of the Wolves " , in which it reveals he was unwittingly responsible for the liberation of Gallitep by hinting to a Cardassian scientist , sent to oversee the shutdown of the camp ' s computer system in preparation for the camp ' s closure , that the Bajoran workers would likely be killed once their usefulness had ended . This scientist , a Bajoran informant , passes the information on to the Shakaar resistance cell , which motivates them to liberate the camp . In the " Gateways " novel " Demons of Air and Darkness " , Colonel Kira recalls Marritza when reflecting on the good Cardassians she has encountered over the years . Similarly , in the " Mission Gamma " novel " " , she notes that her experiences with Marritza had shown her that not all Cardassians are evil . In the novel " Warpath " , Kira is stabbed by the Jem ' Hadar Taran ' atar . Being close to death , she remembers Marritza ' s senseless murder and being with him when he died . Later , during an encounter she has with the Prophets , one takes the visage of Marritza .