A Klingon commander who had been harassing the Federation relay station where Aquiel Uhnari served.
Morag commands a Klingon vessel patrolling the border near a Federation subspace relay station. His encounters with the station's crew left Lieutenant Aquiel Uhnari fearful, and she wrote about him in personal logs to her sister.
In Aquiel, Morag becomes a suspect in the apparent murder of Aquiel and her colleague Rocha. Picard arranges with the regional Klingon governor, Torak, to question him. The true killer proves to be a shape-shifting coalescent organism that had absorbed Rocha.