He was the tactical officer stationed aboard the Mon Calamari Star Cruiser Defiance, under the command of Admiral Nammo while the warship was on the run from the Imperial Navy after the Battle of Hoth. Specifically, the vessel was being hunted by Admiral Garreth Holtz.
Olin Garn, in order to recruit Ace Azzameen into the Alliance as a starfighter pilot, had to first get approval from Devers about the young man. The commander later participated in the Battle of Endor, again serving as tactical officer.
- Star Wars: X-Wing Alliance (First appearance)