Sebairns, a Human male pilot, worked for Admiral Erel Kersos, piloting the admiral's personal vessel while Kersos served the Galactic Republic throughout the Clone Wars. In the year 20 BBY, he was stationed on the MedStar, operating under Admiral Erel Kersos's orders above the planet of Drongar. During the conflict on Drongar, his allergy to a particular type of bean was exploited by Black Sun operative Kaird, who took advantage of Sebairns' resulting illness to steal the admiral's private ship.