Pelayus was a lieutenant by rank and a human officer in a splinter faction of the Galactic Empire. He served under the command of Grand Moff Ubrik Adelhard. During the Battle of Jakku, Pelayus was stationed on the bridge of the Scepter. He informed his superior that Therisa Alern, a New Republic agent, had hijacked one of their TIE fighters and was firing on the Star Destroyer. He later reported that the stolen starfighter was at a disadvantage, being both outgunned and outnumbered. Subsequently, the officer alerted the Moff to the sudden arrival of Liberty's Misrule, a captured Executor-class Star Dreadnought under the control of Eleodie Maracavanya, the pirate leader.
The Imperial uniform worn by the Imperial officer was a standard gray one. It featured a rank insignia plaque displaying a row of two red tiles above two blue tiles, as well as a single code cylinder located in the left pouch. He also wore an Imperial kepi adorned with an officer's disk. The officer had short brown hair and light skin.
Pelayus made his first appearance in "Tipping Point," a comic story featured in the third issue of the Star Wars: Battle of Jakku — Last Stand limited comic series from 2024.