Reshias, a male Human, held the position of master chief gunnery officer within an alternate shift's superlaser gunnery team stationed on the Death Star. Being the highest-ranking non-commissioned officer, Reshias's role included executing the firing sequence by activating the firing lever upon command.
During the event when Superlaser Fire Control's commanding officer issued the order to destroy Despayre to assess the weapon's power, and Tenn Graneet, the master chief on duty, displayed reluctance, Reshias was proposed as a substitute for Graneet should he prove unable to fulfill his responsibilities.