Y'Sek was a Hazari bounty hunter in the Delta Quadrant. In 2375, Kurros and the "Think Tank" hired Y'Sek and his partners to attack the USS Voyager so that they could obtain Seven of Nine. First, the Hazari attacked the Voyager, and then it went to the "Think Tank" for help in fending them off. When they did, they demanded Seven of Nine. Y'Sek was played by actor Christopher Darga. He filmed his scenes on Friday 8 January 1999 and Wednesday 13 January 1999 on Paramount Stage 8 and is listed as "Bounty Hunter" on the call sheets. Y'Sek's name comes from the episode's script.