San Dersen, a lieutenant of the Bedlam Raiders, used a yellow double-bladed lightsaber in combat. He fought against Cal Kestis in conjunction with Mads Gresh. Following the demise of Urgost, he and Gresh remained as the final two Bedlam Raider lieutenants tasked with guarding Dagan Gera. Ultimately, Kestis emerged victorious, slaying both of them after a difficult battle.