Yogar Lyste Lieutenant Yogar Lyste , operating number : LSM - 03 , was an officer of the Galactic Empire several years prior to the Battle of Yavin . He was stationed on the planet Lothal , where he served as Imperial Supply Master of Capital City ; keeping track of all weapons and gear shipped in , as well as any produced locally . In 3 BBY , Lyste was placed in charge of a military depot and hosted a relief mission led by Prince ss Leia Organa of Alderaan . The theft of three " Sphyrna " - class corvettes by the Spectres caused him considerable embarrassment . Eventually , Lyste was promoted to the rank of lieutenant and made acting captain of an Imperial light cruiser . With his new position , he was responsible for monitoring who and what entered the star system , specifically aimed at defending the planets from rebels . In 2 BBY , Lieutenant Lyste came under the command of Grand Admiral Thrawn , who took an interest in the rebel insurgency in the Lothal sector . During the course of Thrawn ' s investigation into the identity of the rebel agent Fulcrum , Lyste was framed by his colleague , the Imperial Security Bureau Agent Kallus . Biography . Background . Born on Garel , Yogar Lyste eventually joined the Imperial Military , where at least five years before the Battle of Yavin he would hold the position of Supply Master on the Outer Rim agricultural backwater of Lothal . An ambitious young Imperial officer , Lyste was charged with overseeing the planet ' s imports and exports , as well as regulating , maintaining , and distributing products from local Imperial - controlled industries . This also included the transport of prisoner s . The Lothal insurgency . Throughout his career , Lyste was harassed by a group of rebels known by the locals as the Spectres , with each attack infuriating him to further his efforts . Shortly before the orphan Ezra Bridger joined the rebel cell , Lyste was overseeing the transference of several crates of food and blasters to the Imperial Complex on Lothal when the shipment was hijacked by the crew of the " Ghost " . Lyste and the stormtrooper s under his command attempted to stop the theft of the cargo , but were powerless to prevent the rebels from fleeing on speeder bike s with the crates . Some time later , Lyste was in the town of Kothal , where he attempted to pressure local farmer Morad Sumar into selling his farmland to the Empire . After Sumar expressed disinterest in the prospect , Lyste took his troops to the farm later that day , where he forcibly evicted Sumar , his wife and their Aqualish farmhand , destroying their home with his troop transport ' s cannons . The farmer , his wife and the farmhand were later freed while in transit by Ezra Bridger and Garazeb Orrelios , who had seen the smoking ruins of the farm from the TIE / ln space superiority starfighter they had recently stolen . Sometime later , Lyste investigated a report by the Imperial cadet Nazhros Oleg that a warehouse in Lothal ' s Capital City was taking in barrels of ebla beer without the proper tax stamp s . His agent s verified that the barrels were being stockpiled in a warehouse for distribution , resulting in Captain Piers Roddance ordering a raid , headed by Oleg , with Zare Leonis and a squad of stormtroopers providing backup . Hosting Princess Leia . In the aftermath of the Siege of Lothal , a large number of Imperial troop s withdrew from Lothal , resulting in Lyste receiving more responsibility , serving as a port commander . Becoming a lieutenant and acting as captain aboard a light cruiser , he became responsible for monitoring ships going to and from the planet , along with ensuring that no dissident forces returned to disrupt Imperial rule . Unknown to Lyste , the same group of rebels that ignited the insurgency on Lothal had secretly returned , slipping past his notice and landing on the planet , in order to rendezvous with the Alderaanian dignitary Prince ss Leia Organa , of whom Lyste was skeptical of due to rebel activity and a history of Alderaan ian vessels being " stolen " by rebels . Hoping to avoid such an incident , he implemented as much security as possible by dispatching a stormtrooper detachment and using gravity lock s to secure Organa ' s three " Sphyrna " - class corvettes . As an added security measure , Lyste also brought in two All Terrain Armored Transports to patrol the area . After Organa insisted that Lyste temporarily hand over his own transport for a relief mission , she , along with Kanan Jarrus and Bridger , both disguised as Imperial soldier s , staged a kidnapping of the princess . After falling for the ruse , Lyste immediately ordered a scan of the nearby area to find the rebels that Organa was secretly working with . Hoping to seize Organa ' s vessels for the rebellion , the rebels launched a raid on Lyste ' s garrison the following evening , in which they managed to " steal " the Hammerheads . Going along with the rebels ' plan , Organa threatened to blackmail Lyste for his inept command of the helpless Imperial presence on Lothal unless she was compensated , and he quickly agreed to do so without any hesitation . After securing a transport for her , he discovered that his own private transport was missing . Thrawn ' s crackdown . In 2 BBY , Lyste was present at the Imperial Armory Complex when Governor Arihnda Pryce and Agent Kallus summoned the workers for a general assembly . The factory was producing a high rate of faulty vehicles that affected the Imperial Military ' s operations . In response , Imperial High Command dispatched Grand Admiral Thrawn to restore order to the factory and to hunt down subversives . In fact , a small rebel cell led by Ryder Azadi had been sabotaging the vehicles . Lyste watched as Thrawn chastised the workers for their poor workmanship and forced the worker Morad Sumar , an undercover rebel operative , to demonstrate a faulty 614 - AvA speeder bike . The simulation caused an explosion , which claimed Sumar ' s life . Thrawn then ordered Lyste and his fellow Imperials to detain the workers for questioning and lock down the factory . Under Thrawn ' s orders , Lyste ordered the factory workers to line up in pairs and submit themselves for questioning . However , the rebel infiltrators , Bridger and Jarrus , managed to escape when their astromech droid Chopper blew up another speeder bike . This ruse worked , and Lyste ordered a disguised Chopper to report for maintenance . Jarrus , Bridger and Chopper managed to evade the Imperial security forces and steal Thrawn ' s secret plans from Section A2 . Meanwhile , Thrawn summoned Lyste and Kallus to his office for an update on the lockdown . Lyste and Kallus found that the office was decorated with holograms of the Spectres , Sabine Wren ' s graffiti , and the helmet of a Jedi Temple Guard . When Thrawn asked his subordinates about one of Wren ' s graffiti artworks , Lyste responded that it was a section of the retaining wall . The more perceptive Kallus recognized it as the starbird , the marking of Phoenix Cell . After Lyste informed Thrawn that two of the workers had disappeared , Thrawn realized that the rebels were after his plans and sent Lyste and Kallus to secure Section A2 . However , the rebels ' droid Chopper had already downloaded the plans by the time Lyste and Kallus arrived to order a lockdown . The rebels managed to escape with the help of Kallus , who had become part of a secret rebel network of informants known as Fulcrum . When Azadi ' s rebel cell launched a diversionary attack on the factory ' s east gate , Lyste dispatched two AT - AT walkers to deal with the intruders . He reported the incident to Thrawn and requested permission to deploy more reinforcements . Knowing that the rebels would take advantage of the diversion to escape , Thrawn allowed Lyste to send an AT - DP walker that had been stolen by Bridger ' s team . Following the rebels ' escape , Lyste reported his account of the skirmish to Thrawn . The Grand Admiral was satisfied with Lyste ' s report and dismissed him before turning to deal with Kallus and Pryce . Betrayal and frame - up . While commanding a Imperial light cruiser , Lyste led a successful operation to capture a stolen shuttle that had fled Lothal ' s spaceport . When Kallus awoke , Lyste informed him that his ship was responding to a shuttle heist . After the light cruiser ' s bridge crew had trapped the stolen shuttle with the ship ' s tractor beam , Lyste remained aboard the bridge while stormtroopers boarded the shuttle . Unbeknownst to Lyste , Kallus discovered that the captured shuttle thief was his rebel contact Ezra Bridger , who had come to rescue him . When Lyste entered the light cruiser ' s detention block , Kallus claimed that Bridger was a bounty hunter whom he had succeeded in extracting a confession from . Lyste then informed the ISB agent that Thrawn ' s Seventh Fleet had arrived in the Lothal system and had invited both of them aboard his flagship " Chimaera " . Lyste was eager to be summoned for a meeting with a high - ranking Imperial commander , since he wanted to showcase his successful capture of an alleged rebel operative . He also wanted to make up for the embarrassing incident involving the Princess from Alderaan . Lyste gave orders for his men to bring the rebel prisoner aboard a " Sentinel " - class landing craft for his meeting with Thrawn . Lyste was also accompanied by the undercover rebel droids AP - 5 and Chopper , who claimed to be unwilling passengers aboard Bridger ' s shuttle and that they had evidence to submit against Bridger . Once aboard the " Chimaera " , Lyste and Kallus witnessed several Imperial officer s of the Sector Command staff , Captains Brunson and Slavin , and Commander Brom Titus , exiting a meeting with Thrawn . Upon reaching Thrawn ' s office , a stormtrooper sentry demanded that Lyste and Kallus submit their code cylinder s . Lyste reluctantly submitted his after a brief protest , and the two met with Thrawn and the Head of the ISB Colonel Wullf Yularen . During the meeting , Thrawn revealed that there was a traitor in the Imperial ranks who was helping the growing Rebellion , codenamed Fulcrum . When Lyste expressed his enthusiasm in hunting down the Rebel spy , Thrawn told him that nobody was above suspicion and informed them that Yularen would be interrogating them personally . While chatting alone with Kallus , Lyste remarked that nobody escaped the eye of Yularen for long . After Pryce complimented Lyste for capturing the shuttle thief , Kallus manipulated Lyste into believing that the ISB was investigating Pryce as a Fulcrum suspect . While Lyste was distracted , Kallus switched their code cylinders . He then convinced Lyste to spy on Pryce . Later , Kallus contacted Lyste by comlink , and was warned by Lyste that Pryce , Thrawn and Yularen were entering the detention block . He told Lyste to trail Pryce , but to remain unseen . Kallus had already used Lyste ' s code cylinder to free Bridger from the " Chimaera " detention block , thus framing him as the rebel agent Fulcrum . Kallus then obtained an military uniform for Bridger . Pretending to be Lyste , Bridger used a Jedi mind trick to convince one of Thrawn ' s guards to let him into his office . Once inside the office , Bridger transmitted clearance codes to his rebel comrades Jarrus and Rex . Kallus then had Chopper delete data on the planet Atollon , which housed the rebel base . He also reprogrammed Thrawn ' s Imperial sentry droid s into assassin droid s . After Thrawn narrowly escaped an attack by the droids and witnessed a disguised Bridger escaping , he believed that Lyste was the traitor . Playing into Kallus ' hands , Lyste continued to spy on Pryce . When he saw her fight two stormtroopers ( who were Rex and Jarrus in disguise ) , he believed that she was actually Fulcrum and stun ned her , which Yularen witnessed . When the disguised Rebels fled onto the ship , Lyste recognized Bridger and realized that he had been deceived before being tackled by Kallus , who took the opportunity to switch their code cylinders back . Shortly after , Yularen arrived with stormtrooper reinforcements . Kallus publicly accused Lyste of being Fulcrum . Despite his protests , Lyste was dragged away by stormtroopers . While Thrawn and Yularen publicly accepted Kallus ' explanation that Lyste was Fulcrum , the two privately doubted that Lyste was the traitor , as he was too inexperienced and naive to be capable of masterminding the events that had transpired . Upon seeing Wren ' s art on Bridger ' s helmet , Thrawn deduced that Bridger was in fact the mysterious " shuttle thief " and that because Kallus tried to conceal this , he had to be the real Fulcrum . However , he decided not to apprehend Kallus since he wanted Kallus to lead him to the rebels . Personality and traits . Young and ambitious , Lyste exuded confidence in the performance of his duties , exhibiting a great amount of pride . He took his position as Supply Master , and later lieutenant and acting captain of his own Imperial light cruiser , seriously , and cared little for anyone standing in his way . Charged with securing land on Lothal , he attempted to negotiate before resorting to force , as he was not keen on unnecessary violence . However , when forced to use drastic measures , he did not hesitate to use force . One such example was when he was ordered to clear farmer s from their land . Despite his confidence , he proved unable to stop rebels Bridger and Garazeb Orrelios from freeing his prisoners , and later failed at ensuring that Organa ' s vessels were not " stolen " by the same group of dissidents . Wren had some respect for him , noting that he had started beefing up security and describing him in her personal journal as " not a complete dummy . " Unlike many other officers , he was quite understanding of the failures of his subordinates . He also showed concern for the people of Lothal during the presence of the Imperial blockade , telling Organa that he wanted to make sure that her supplies got to the impoverished citizens . Despite his preparations to secure the Hammerhead corvette s with gravity locks , he was outmatched by the bold cunning and ingenuity of his rebel opponents . Lyste felt humiliated by this incident and sought to curry favor with the Imperial military leadership . Lyste was briefly shocked by Thrawn ' s killing of the factory worker Sumar during a test demonstration , but nevertheless complied with the Admiral ' s orders to detain and question the workers . He was outfoxed by the Spectres ' escape tactics , including staging diversions . Unlike Thrawn and Kallus , he lacked an appreciation for art and once , when asked for his opinion of one of Wren ' s graffiti pieces , described it solely as a piece of the retaining wall . Lyste took pride in his successful efforts to apprehend the rebel Bridger , who was posing as a bounty hunter . However , he was unaware that Bridger had staged the capture in order to rescue Kallus , who was the secret rebel informant Fulcrum . Lyste viewed the capture of Bridger as an opportunity to regain favor with the Imperial High Command following the incident with Organa . He was enthusiastic about helping Thrawn capture the rebel agent . Kallus took advantage of Lyste ' s woeful lack of experience and naivety to manipulate him into believing that Pryce was Fulcrum in order to frame the lieutenant . Lyste ' s trust in Kallus and inexperience proved to be his undoing . Behind the scenes . Yogar Lyste first appeared as a secondary character in the television movie " " , which premiered on September 26 , 2014 . He was voiced by Liam O ' Brien , who had also voiced several other characters , including fellow " Star Wars Rebels " character Morad Sumar and Commodore Dael Margok in the Legends computer game " " . O ' Brien voiced Lyste in several " Star Wars Rebels " episodes throughout seasons one , two , and three . He also appeared as a tertiary character in Jason Fry ' s 2014 – 2015 junior novel series " " . In his first appearance , in the scene in " Spark of Rebellion " where Ezra watches from a rooftop as Lyste is berated by Commandant Aresko and Taskmaster Grint for supposedly reporting a nonexistent emergency , Lyste ' s hair is white instead of dark brown .