A legend among legends, Captain Selto Durka was one of the most feared and respected people in Peacekeeper history. Known for his superb strategies and fierce brutality, he won practically every battle he entered.
Peacekeeper High Command granted him command of their latest and most fearsome vessel, the Command Carrier Zelbinnion, at one point. The largest Peacekeeper ship, it was feared throughout several cultures. One of it's prisoners was the deposed Hynerian dominar Rygel XVI, who Durka took particular pleasure in torturing, until Rygel was transferred.
However, moving through the uncharted territories, the Zelbinnion entered Nebari space, and was attacked by a standard Nebari vessel. Everybody on board the Zelbinnion was killed, bar Durka, who escaped in an evacuation pod. He was captured by the Nebari though, and mind-cleansed.
After the 100-cycle mind cleansing procedure, Durka was re-integrated into society a very different person. He felt ashamed of what he had done as a Peacekeeper, and started working with the Nebari Sallis in order to mind-cleanse others who had "mental impurities".
Upon delivering a Nebari rebel, Chiana, back to Nebari Prime, Durka and Sallis encountered Moya. Rygel, remembering Durka, tried to kill him but succeeded only in breaking his mental cleansing. Durka was back to his old self, and promptly took over Moya. It was only thanks to a quick plan by Crichton that he was thrown out.
Drifting aimlessly in space, Durka got caught in the Flax net used by the Zenetan Pirates. He took charge, seemingly killing the old captain Krakage, and later ran into Rygel again when the crew of Moya needed help. Needless to say, Durka was intending on torturing his favourite Hynerian plaything a fair bit more, but the good captain's sense of security seemed to be lacking - Rygel had hidden a dagger and used it to stab Durka.