Cassus Fett Cassus Fett was a Mandalorian Field Marshal who lived during the time of the Mandalorian Wars . Fett was an aide - de - camp to Mandalore the Ultimate , leader of the Mandalorians , and he was highly influential in areas throughout Mandalorian society . Fett spearheaded the promotion of the Neo - Crusader movement , a sect of Mandalorian society with a more regimented structure and standardized armor than the hitherto dominant Mandalorian Crusaders . By exerting control over the clans and providing a means of converting conquered cultures into Neo - Crusaders , Fett turned the Mandalorians into a war machine intent on galactic conquest . On the Outer Rim , Fett engaged the forces of the Galactic Republic in a series of battles , including a massacre of the Cathar people . He engineered a number of minor engagements at the edge of Republic space to determine the strength of the Republic , before launching into a full scale invasion of Republic space along three fronts in 3963 BBY . Fett was present at the preliminary Battle of Vanquo , led the siege of Taris and eventual conquest of that world , planned an invasion of the planet Alderaan , and killed the captain of a Republic flagship at the Battle of Jaga ' s Cluster . After becoming the most wanted man in the galaxy , Fett was presumed dead by the time of the Jedi Civil War . Many years later , his descendants , Jango and Boba Fett , would live up to his legacy . Biography . Rise to power . The origins of Cassus Fett were largely unknown in the galaxy ; Republic Intelligence was unaware of where he came from , and even few of his fellow Mandalorians knew , though it was known that he was Human . After the close of the Great Sith War and the defeat of the Mandalorians in it , a new Mandalore rose to power , styled Mandalore the Ultimate . Mandalore , looking to redefine Mandalorian identity , called together a number of talented advisors with abilities beyond battle and war , amongst them Fett . Fett became Mandalore ' s aide - de - camp and top strategist ; he was highly influential , both on the battlefield and off . He helped convert the disorganized rabble of the Mandalorians into an efficient , regimented organization . Whereas the Mandalorians before Fett ' s time had simply conquered worlds without bringing them into the fold of Mandalorian culture , Fett saw a need to use their conquests to their advantage . He and Mandalore the Ultimate took notice of a cult that had sprung up amongst the Mandalorians . Known as the Neo - Crusaders , this group lived on the planet Mandalore ; they broke from Mandalorian tradition by wearing identical suits of armor and had an unorthodox chain of command and system of labor division . Fett convinced Mandalore to incorporate their ideals , and the two Mandalorians encouraged this movement . Though Mandalore decreed the Neo - Crusader system to have widespread usage , it was Fett who implemented it . Fett converted the small - time organizational system of the Neo - Crusader cults used into one that could be used on a large scale , and he incorporated Neo - Crusaders amongst the clans to spread their ideals throughout . Fett believed that similar uniforms could help exert dominion over the Mandalorians , who were largely growing out of control . He also argued that the suits of armor the Neo - Crusaders wore should be color - coded by rank , so that new recruits could see where authority lay . While the lowest ranks wore blue armor , Mandalore ' s top advisors wore gold - colored suits , and Fett was one of the first to don the armor as a sign that all Mandalorians , regardless of status , should forgo their individualism . Before the invasion of the Galactic Republic began , Fett ' s system for converting conquered cultures into new Mandalorians was in place . Fett was not without opposition amongst the Mandalorians , though , considering Mandalorians like Demagol and Pulsipher , a cohort of Demagol ' s , as his rivals . Demagol , a Mandalorian scientist , was another of those who Mandalore included in his circle of advisors , and Fett believed him to be a rival for Mandalore ' s attention . Demagol irked Fett in return by refusing to wear Neo - Crusader armor . The beginnings of war . In the years surrounding the beginning of the Mandalorian Wars , but before the Mandalorian invasion of the Republic , the Mandalorians were an active force in the worlds of the Outer Rim . Fett conquered a number of unaligned worlds in this time , earning him a reputation as a master of military command . In 3976 BBY , Fett led an attack on the planet Cathar that devastated that world , seeking to punish the native Cathar for opposing the Mandalorians in struggles long past . Leading an army of warriors on Basilisk war droid s , Fett drove the Cathar into near - extinction . The remaining Cathar , defeated , were rounded up and herded into the planet ' s sea . As Fett prepared to execute them , a lone Mandalorian stood with the Cathar , pleading with Fett to spare them . Fett stood his ground , and his ships poured their fire onto the Cathar and the lone warrior . The massacre was so great that those Cathar who remained were afraid to speak of it for years . The Republic covered it up , fearing that knowledge of the attack would destabilize reconstruction after the Sith War . The disappearance of the Cathar remained a mystery for over a dozen years . Shortly before the invasion of the Republic proper , Fett helped to engineer the False War , a brief engagement in the Outer Rim with the forces of the Republic . It consisted of feigning weakness until the strength of the Republic Navy , revitalized after the Sith War , could be determined . Fett formulated the next part of the Mandalorian military plan as well : a three - front invasion of the Republic known as the Onslaught . This assault , launched in 3964 BBY , took advantage of the recent confusion the Republic had been thrown into , with the murder of four Jedi Padawans on Taris and the escape of Zayne Carrick , the Jedi falsely accused of the crime . The planet Vanquo was one of the Mandalorians ' targets , intended to draw off Republic forces to pave the way for an assault on the important world of Taris . Fett and Mandalore monitored the invasion from Mandalore ' s flagship , watching the progress of the Vanquo assault while they prepared to move on Taris . Fett had an orbital screen established around Vanquo so that the main force of the assault could engage the major settlements on the world ' s day side , while shock troopers landed on the night side to take out the mining camps there . Before the Republic could mount a defense , Fett and the Mandalorians had seized a number of worlds . As he had done with Mandalorian organization , Fett also overhauled Mandalorian military production . He set up War Forges near the staging grounds of the Neo - Crusaders on Jebble , Tarnith , and other worlds . Quickly coming online , they provided the Mandalorian advance with the armor and weapons needed by new recruits . The invasion of Taris . By 3963 BBY , the attack on Taris had begun in earnest . When the Republic ' s defensive Jebble - Vanquo - Tarnith line fell to the Mandalorians , Admiral Jimas Veltraa reformed his forces around Taris . They were ultimately destroyed , however , and the Mandalorians laid siege to the planet . As Mandalorian vessels moved into orbit around Taris with more arriving continually , adding their own firepower to the planetary bombardment , repeated attempts by Tarisian planetary defense fighters to break the siege were unsuccessful . The Mandalorians were busy on other fronts , as well . They laid waste to the world of Serroco in an attack orchestrated by Fett . When Demagol was reported dead at Flashpoint Stellar Research Station — actually having been captured by the Republic — Fett ' s influence rose . Mandalore personally sent Fett to Taris to aid in the siege and help with the logistics of a planetary conquest of such magnitude . The experience would help them in their eventual invasion of Coruscant , which Fett intended to be part of . Eventually the time came to take the planet . The Mandalorians began landing their soldiers in Taris ' polar regions , following this with landings in the equatorial regions , and eventually leading to a planet - wide invasion . With what a Tarisian reporter called " macabre efficiency , " Fett led his troops , on foot or Basilisk war droid , to overtake the Upper City . Swoop gangs briefly took shots at the Mandalorians before retreating into hiding , and soon even the news organs were interrupted as the conquest swept the planet . With the Mandalorians ' victory over the planet secure , Fett made an announcement across the world on the Taris Holofeed . Telling the people of Taris that the Republic had failed them , Fett freed them from their allegiance to the Republic and Supreme Chancellor . As he had done on a number of other worlds , Fett gave the citizens of Taris a choice between joining the Neo - Crusaders or working in their factories as " de facto " slaves . With a final promise of death to those who would betray the Mandalorians , Fett deactivated the Holofeed . As the siege of Taris continued , Fett saw the tangle that arose among vessels of the invasion force , appropriated vehicles , and ships of attempted escapees . His own forces found themselves in each others ' way , sometimes causing the loss of important materiél . It could have slowed the Mandalorians for months , but from his headquarters in the former Jedi Tower Fett managed traffic control on and around the world . Even as he did so , he continued to successfully wage war on the Taris Resistance . As the Lower City of Taris was still being conquered , Fett ordered the city ' s skylanes to be kept clear for landing ships , and those above the planet he personally directed to their destinations . When news that Fett was headquartered in the Tower reached the Resistance , they decided to assassinate him . Their plan was to detonate a number of demolition charges in the foundations of the building , but to make sure that Fett was there when they attacked , they intended to infiltrate a reconnaissance into the Tower first . Fett , meanwhile , studied the Resistance strong points in the Lower City and realized where they were hiding . He pulled his men out of the Tower and set off to attack the Resistance base , leaving the Resistance infiltration team unable to complete their mission . They destroyed the Tower anyway , but the rest of the Resistance forces were driven into retreat , forced to fall back into the Taris Undercity . Shortly after the invasion of Taris , the Republic began broadcasting propaganda on Mandalorian frequencies in an attempt to reduce morale and sway Neo - Crusader converts . Fett contacted Mandalorian officer Koblus Sornell to discuss the transmissions and any potential information in them . As the Mandalorians prepared an invasion of the planet Zongorlu from Taris , the Republic ' s broadcasts attempted to discourage them with reports of deadly conditions and dangerous inhabitants on the world , as well as immense ships at the Republic ' s command . Fett , meanwhile , had Sornell work on creating a mobile signal station for the invasion fleet , to communicate with him upon arrival . Sornell informed Fett of the problems that the transmissions were causing within the newly recruited ranks ; warriors distracted by them had had several accidents , some of them deadly . When Sornell and the fleet at last invaded Zongorlu , they discovered that the broadcasts had been a farce ; the world was temperate , its native species was a sessile plant , the massive ships did not exist , and the broadcasts had come from a tiny transmission station on the world . Sornell reported back to Fett with his findings , and Fett ordered him to hold station for a week , a much shorter time than the intended operation . While the transmission had ceased upon the invasion , they soon resumed , this time offering the Mandalorians a deal ; in exchange for peace , the Republic would give them a portion of taxation from the worlds they had invaded . Sornell answered them with a refusal , and Fett soon contracted him , reprimanding him for not waiting . Sornell defended his decision . The Jebble plague . After the battle with the Resistance , Fett took a number of troop transports and moved on to Jebble , a Mandalorian - controlled ice world being used as a staging area , where captured criminals were being trained into the Neo - Crusaders ' ranks . With these new soldiers he planned to launch an invasion of the Core World Alderaan , deep in Republic space . Before Fett could arrive , though , Pulsipher — another Mandalorian rival of his — reached Jebble on his own with a prize he had found in the Undercity of Taris : the Muur Talisman , a powerful Force artifact . When he put it on , Pulsipher accidentally let loose a plague that turned its victims into Rakghoul s . Soon , the ranks of Mandalorians stationed on Jebble were transforming into the beasts . Meanwhile , the Jedi fugitive Zayne Carrick had stowed away onto Pulsipher ' s transport and was now on Jebble . Having escaped the waves of Mandalorians and Rakghouls , Carrick found a communications station and contacted the approaching Mandalorian fleet . He warned Fett that the plague had broken out and told him not to land , but Fett , who knew that Carrick had been involved in the assassination attempt , was dubious . Meanwhile , Pulsipher , through use of the Talisman , had found himself in control of the Rakghouls ; he intended to put Fett in his place by attacking the landing transports and , from there , spreading his influence throughout the galaxy . Pulsipher was killed , however , and Carrick made his own escape from the planet when his friends came to his rescue . Fett arrived as Carrick was leaving , and , convinced of the Jedi ' s sincerity , annihilated the surface of the planet with missiles . He then contacted Carrick and stated he was in the Jedi ' s debt . All - out war . Later that year , the truth about Cathar broke . A charismatic Jedi known as The Revanchist brought the Jedi to Cathar in search of answers . Upon finding the mask of the lone Mandalorian who had stood against Cassus Fett , the gathered Jedi had a vision of Fett ' s massacre . Spurred by the fate of the Cathar , the Jedi , led by Revan and his friend Malak , promptly joined the war against the Mandalorians . Not long after , Zayne Carrick , searching for the slaver Dace Golliard — and through him , Demagol , who was actually still alive — had fellow Mandalorian Rohlan Dyre , also presumed dead by the Mandalorians , contact Fett . With Carrick banking on Fett ' s willingness to repay his debt to Carrick and his dislike of Demagol , he and Fett planned a false strike by the Mandalorians against an asteroid mining facility near the Ithor system . While Carrick anonymously contacted the Republic ' s Defense Ministry to tip them off to the " attack " , Fett and the Mandalorians sent an unscrambled message for Golliard to intercept . Fett and his fleet arrived in the asteroid field on schedule , facing off against Admiral Saul Karath of the Republic while Golliard , expecting a battle from which he could scavenge , waited in hiding nearby . As Fett and the Mandalorians closed on Karath ' s fleets and Karath prepared to engage , the Mandalorians suddenly leapt to hyperspace , and Golliard was left to the mercy of the Republic and Carrick . Fett contacted Carrick after the engagement to let him know the Mandalorians ' debt was repaid . He commanded Dyre to keep his survival a secret , and hoped that the group would be able to kill Demagol . Fett would later engage Revan and Malak in the Battle of Jaga ' s Cluster , where he became famous for killing the captain of a Republic frigate flagship . Fett eventually became the most wanted man in known space . The Mandalorian Wars were ultimately won by the Republic , and by 3956 BBY Cassus Fett was presumed dead . Legacy . Fett had a family amongst the Mandalorian clans , and at least one son . Thousands of years later , his descendants Jango and Boba Fett would become famed bounty hunters . A suit of Fett ' s armor ultimately wound up in the possession of the merchant Adum Larp of Dantooine , and his heavy blaster pistol likewise came into the keeping of B ' ree , a Czerka Corporation merchant on Korriban . Personality and traits . Cassus Fett was almost unrivaled in his knowledge of tactics and held a reputation as a master of command . A methodical man , he was the architect of many of Mandalore ' s victories in the war , and by the time of the invasion of Taris he held the position of Field Marshal . He was knowledgeable in a number of languages , including High Galactic and " Mando ' a " . Fett ' s influence extended throughout Mandalorian affairs , reshaping their entire culture . His contributions to Mandalorian strategy ranged even down to the mundane matters of traffic control . Fett ' s notions of exerting control over the Crusaders and utilizing logistics were foreign to the Mandalorians , but they aided the Mandalorian cause greatly , turning them into a force capable of threatening the Republic ' s influence on the galaxy . Fett also used trickery as a tactic , which fellow Mandalorian Rohlan Dyre considered to be disreputable and a mark against Mandalore the Ultimate for relying on it . While Fett understood that his system was unorthodox to the Mandalorians and their nomadic way of life , he believed it would bring them ultimate victory . Fett was known by his fellow Mandalorians for the ruthless tactics he used , willing to wipe out millions to preserve the greater cause of his people . He would freely kill large populations for revenge , to eliminate a potential threat , or to preserve Mandalorian honor . Republic propaganda portrayed Fett as Mandalore the Ultimate ' s thug . Fett considered the Mandalorians to be a new order , replacing the old order of Republic rule . He spoke of himself as a liberator of worlds , believing that the Republic ' s inability to defend them made it unworthy of those worlds ' allegiance , and offering the path of the Neo - Crusaders to them with the promise of joining the Mandalorians in victory . Though he offered peace to those who joined the Mandalorians , he would not brook betrayal and promised death to those who feigned loyalty . Fett did not trust his enemies easily , but once convinced of their sincerity , he was willing to put himself in their debt and repay those same debts . Fett had little in the way of peers or friends . He held rivalries with other Mandalorians , such as Demagol and Pulsipher , and was glad to hear when they were reported dead . Even Mandalore ' s appreciation of Demagol did not prevent Fett from aiding in his death . For his part , Pulsipher did not think highly of him and was upset at the amount of resources Mandalore put in Fett ' s hands . Equipment . To show his support for the color - coded system of armor he helped implement , Fett wore for a time a suit of yellow Neo - Crusader armor , initially donned only by Mandalore the Ultimate ' s closest advisors . Fett also possessed at least one other suit of armor , colored purple . He wielded an adaptable heavy blaster pistol , which he was rarely seen without . Fett could issue orders to Mandalorian " Kandosii " - type dreadnaughts to use fission weapons , which saw use many times in the course of the war . At times he led soldiers mounted on Basilisk war droids into battle , as he did at Cathar . Behind the scenes . Cassus Fett was first mentioned in " " , where the player can purchase his armor and blaster from two vendors ; brief bits of information on Fett are provided in the flavor text for these items . There are in fact two items in the game ' s files labeled " Cassus Fett ' s Battle Armor , " though only one is included in the game ; the other , unused , has a different texture . Though Fett ' s first actual appearance was in the comic " " , this was not known for some time , as the comic itself does not identify him . When John Jackson Miller , author of the " " comics series , was asked as to whether the Mandalorian in question was Fett , he stated that he would let the " text speak for itself " and not reveal it elsewhere . Fett was first named in the series in " " feature of and first associated with a picture in the subsequent " The Taris Holofeed Special Proclamation " feature of , which reused a panel from 8 for its image of Fett . Miller at last made explicit that the Mandalorian in 8 was Fett in the notes for the " " on his website . Fett also received a profile in the " Handbook " . The images from issue 8 were too small for inclusion , and his appearance in was not available yet , so a red - armored Mandalorian from was recolored gold to represent him . However , the character himself is not actually in issue 20 . Inspirations . Miller has compared Fett to Darth Vader in that he feels the character is best used sparingly . Many of Fett ' s inclusions in the series are as a result in name only , where the reader only sees how other characters react to him . Miller spent some time trying to find the right tone for Fett ' s speech in " The Taris Holofeed Special Proclamation " , in which the character announces that the Mandalorians are now in charge of Taris . On a vacation to , he found his inspiration in a speech by General , who made the proclamation that claimed New Mexico as part of the . Though the situation there was different from the one Miller was writing , he used it as a loose model for the terseness of Fett ' s announcement .