A surviving Kraylor crewman on the ship Harry Kim commands in Nightingale, who questions the young ensign's orders and his fitness to lead the mission.
Terek appears in the Voyager episode Nightingale. He is one of the few trained crew left aboard a Kraylor vessel after an Annari attack kills its officers, leaving mostly scientists and inexperienced hands.
When Harry Kim accepts temporary command, Terek serves on his bridge. Kim, eager to prove himself, hovers over every station and corrects every action, and Terek makes little secret of his irritation.
After Kim discovers that he has been lied to about the mission, the tension comes to a head, and Terek is prepared to carry on without him. Kim returns to the bridge, learns to trust his crew, and brings the ship home through the Annari blockade.