Boyle Marcom was a Human male navigation officer who served for decades as part of the Sith Empire's navy during the time of the Great Hyperspace War. In 5000 BBY, the then-aged and physically frail Marcom was selected as the helmsman for a Lignan crystal mining and transport mission by Yaru Korsin, the son of Eldrak Korsin, an admiral under whom Marcom had served in the past. However, a Jedi attack nudged Marcom's ship, the Omen, off course as it jumped to hyperspace. The Omen crashed on an uncharted planet, and the blame was laid squarely at Marcom's feet by some of the ship's crew. After surviving the crash, Marcom was confronted and killed by miner Devore Korsin, Yaru Korsin's brother.