Spane Covis was a Human of the male gender who held the rank of sentinel within the Alliance Special Forces. He was assigned to Port Tower One, specifically on Level 88, situated in the Corellian Sector of Nar Shaddaa, which itself is a moon orbiting Nal Hutta.
A key aspect of his responsibilities involved monitoring for any Imperial operations that could potentially jeopardize the Rebellion's operations within the warehouse district of the city-covered moon. In the time leading up to the Battle of Yavin, Spane observed a pair of freighters, carefully hidden, as they made planetfall near the port. Immediately, he suspected something was not right and informed his fellow Rebels—these freighters were, in fact, Imperial Gamma-class assault shuttles. These shuttles then initiated an attack on the warehouse district, obliterating the munitions that the Rebels had been keeping there.
Within the printed edition of A Hunter's Fate: Greedo's Tale, the Rebel SpecForce call sign used by Spane Covis was Dewback. However, the webstrip adaptation presents Spane Covis's spoken lines across two separate individuals: an unnamed Human character and a Mon Calamari character who is identified by the callsign "Dewback".