Nymos Lyle was a male individual who held the position of executive officer under Admiral Rae Sloane. He served aboard the Imperial-class Star Destroyer known as the Vigilance during the time of the Galactic Civil War.
Sloane instructed Lyle to ensure that the Imperial loyalty officer, Emarr Ottkreg, did not have much contact with her after Ottkreg was assigned to the vessel. Nevertheless, during the Battle of Endor, Lyle could not prevent the loyalty officer from going to the admiral on the Vigilance's bridge. The two of them stayed on the bridge, observing Sloane as she issued commands for the rest of the battle. As it became evident that the Empire was defeated and the DS-2 Death Star II Mobile Battle Station was about to be destroyed, Sloane killed Ottkreg and commanded all surviving Imperial ships to withdraw.
Nymos Lyle's character featured in the short story titled "The Levers of Power." This story was authored by Jason Fry and included in the collection The Rise of the Empire, which was released in 2015.