Devlin, a Nautolan Captain of the Galactic Republic during the Galactic War, was a male. In approximately 3641 BBY, Devlin held command over the First Recon, a group involved in the Invasion of Belsavis. Subsequently, they launched an inquiry into the Deep caverns within The Tomb, however, the majority of the troopers were overwhelmed and taken prisoner by the Esh-kha. Devlin avoided being captured and successfully persuaded a Republic operative present in the region to liberate his soldiers.
The character Captain Devlin is featured as a non-player character (NPC) in the video game Star Wars: The Old Republic on the planet Belsavis, where he initiates the quest titled "Riot."