Suba ( lieutenant ) / Legends Suba was a Human male lieutenant of the Imperial Navy assigned to Darth Vader ' s personal flagship , the Super Star Destroyer " Executor " , by 3 ABY . He served as the " Executor " chief of security and political officer , responsible for ensuring the Imperial loyalty of his fellow officers . Frequently serving aboard the " Executor " bridge under the command of Admiral Firmus Piett , Suba disapproved of Vader ' s reluctance to simply kill the Rebel Luke Skywalker , though he did not voice his opinion . Concurrent with the Hoth campaign of 3 ABY , Suba assisted in the investigation of murdered " Executor " bridge officer Lieutenant Commander Tanith Sorn . Biography . Suba was a lieutenant of the Imperial Navy serving aboard the Super Star Destroyer " Executor " , personal flagship of the Dark Lord Darth Vader , by early 3 ABY . He was the " Executor " chief of security and political officer , responsible for ensuring that his fellow officers remained loyal to the Galactic Empire . Suba served under the command of Admiral Firmus Piett after the latter assumed command of Vader ' s flagship following the death of former Admiral Kendal Ozzel , whom Vader had executed as the result of a critical tactical blunder he committed at the Battle of Hoth . While the " Executor " participated in the Battle of Hoth , a simultaneous investigation into the death of bridge officer Lieutenant Commander Tanith Sorn took place aboard the Super Star Destroyer . Sorn had been murdered by a Rebel Alliance spy , Malkor Trel , who had infiltrated the " Executor " crew . In his role as chief of security , Suba assisted the team assigned to investigate the murder by granting them access to Sorn ' s personal quarters . As the " Executor " and the remainder of Vader ' s Star Destroyer fleet , the Imperial Death Squadron , chased the fugitive Rebel freighter , the " Millennium Falcon " , through the Hoth asteroid field in the aftermath of the Hoth battle and subsequently lost the ship once it disappeared from its pursuers near the Anoat system , Vader executed another fleet officer , Captain Lorth Needa , for his incompetence . Suba was present nearby , standing at Piett ' s side aboard the bridge , when Vader proceeded to order his admiral to deploy the fleet and calculate every possible escape trajectory the " Millennium Falcon " may have taken , before issuing a clear warning to Piett that further failure would not be tolerated . Following Piett ' s relaying order to deploy the Imperial Star Destroyers of Death Squadron , Suba snapped into action to carry out the command . Suba was again present aboard the " Executor " bridge when the Super Star Destroyer failed to intercept the " Millennium Falcon " as it escaped from Imperial forces on Bespin ' s Cloud City . Once more Suba flanked Piett as Vader inquired whether or not the " Millennium Falcon " hyperdrive had been deactivated during its Imperial impounding on Cloud City , as well as the Dark Lord ' s subsequent command to ready a boarding party with weapons set to stun to capture Luke Skywalker and the remaining Rebels aboard . Personality and traits . While Darth Vader intended to capture Luke Skywalker in order to turn the young Jedi to the dark side of the Force , Suba disapproved of Vader ' s reluctance to simply kill Skywalker , although he refrained from voicing his opinion . Suba , a Human , had brown hair , blue eyes , and light skin . Equipment . Lieutenant Suba wore the standard - issue Imperial officer ' s uniform during his service aboard the " Executor " in the aftermath of the Battle of Hoth . Behind the scenes . Suba first appeared in the 1980 film , portrayed by an unidentified extra in two scenes flanking Admiral Firmus Piett as the latter speaks with Darth Vader aboard the " Executor " . The character was first identified by name and provided a brief backstory on the " Lieutenant Suba " card as part of the April 1997 " Dagobah Limited " expansion set of the " Star Wars " Customizable Card Game . Suba also makes a brief , indirect appearance , identified only as the " Executor " " Chief of Security , " in the April 2009 " Star Wars Roleplaying Game " adventure " Murder on the Executor " .