Llona was a Human female who held the rank of Ensign within the Imperial Navy of the Galactic Empire throughout the duration of the Galactic Civil War.
At some point following the Battle of Yavin, she found herself stationed aboard the Imperial Star Destroyer known as the Devastator. There, she received orders to support Colonel Kell Bircher after he assumed command of the vessel from Darth Vader. However, Bircher, already familiar with the starship, considered her assistance in that capacity unnecessary and reassigned her to work directly for him on a continuing basis. Bircher's initial task for her involved determining whether Darth Vader had departed the Devastator.
Llona's debut occurred in issue number 2 of the "Star Wars" comic book series, specifically Star Wars (2013) 2, published by Dark Horse Comics. Brian Wood penned the issue, while Carlos D'Anda provided the illustrations, and Gabe Eltaeb handled the coloring. Its release date was February 13, 2013.