Sifo - Dyas Sifo - Dyas was a human male Jedi Master who commissioned the Kaminoan s ' creation of the Grand Army of the Republic over a decade before the Clone Wars . A Jedi from the Cassandran Worlds , Sifo - Dyas was gifted with the power of foresight , and he earned a seat on the Jedi High Council prior to the Invasion of Naboo . When he foresaw a coming war that would ravage the galaxy , he believed that the Galactic Republic would require an army if it were to prevail . Yet , his peers on the Jedi Council rejected his notions , leading to his removal from the Council . Nevertheless , he pursued his ideas in secret and contacted the Kaminoan cloners , purporting to have the authorization of the Council and the Galactic Senate to raise an army for the Republic . In doing so , he unknowingly entered the crosshairs of the Sith , who set out to assume control of his cloning project . Around the time of the Invasion of Naboo , Supreme Chancellor Finis Valorum requested Sifo - Dyas conduct clandestine negotiations with the Pyke Syndicate , and he headed for Oba Diah with Valorum ' s personal aide , Silman . However , the Sith Lord Darth Tyranus hired the Pyke s to target Sifo - Dyas ' s T - 6 shuttle , and they shot down his ship over the Oba Diah moon . Sifo - Dyas died in the resulting crash , but Silman survived and was taken prisoner by the Pykes . Consequently , Tyranus and his Sith Master , Darth Sidious , funded Sifo - Dyas ' s army of clone trooper s , instructed the Kaminoan cloners to add Order 66 to the clones ' inhibitor chips ( which Sifo - Dyas originally intended to be a safeguard against any treacherous orders given to clones ) , and manipulated the Jedi Order into taking command of the army when the Clone Wars erupted . It was not until years later that the Jedi began to unravel the Sith ' s conspiracy and unearthed the details of Sifo - Dyas ' s demise . Biography . Hailing from the Cassandran Worlds , Master Sifo - Dyas was a leading member of the Jedi High Council , the governing body of the Jedi Order , in the last decades of the Galactic Republic . However , some time prior to the Invasion of Naboo , tensions arose between Sifo - Dyas and his fellow councilors . Foreseeing an upcoming full - scale conflict , he started advocating for the creation of an army for the Republic . The rest of the High Council deemed his ideas too extreme , and Sifo - Dyas was removed from his position . Even though the other Jedi had rejected his project , he found a way to carry it out without their consent . Sifo - Dyas contacted the Kaminoan s , who were reputed for their clone hatcheries , and secretly commissioned them to grow a clone army for the Republic , which he pretended was a request of the Galactic Senate . Some time later , Master Sifo - Dyas was sent on a secret mission by Finis Valorum , the Supreme Chancellor of the Republic , who asked him to deal with the Pyke Syndicate . Valorum also asked his personal aide , Silman , to accompany the Jedi on his way to the planet Oba Diah , where the Pykes were headquartered . However , Sifo - Dyas was never able to complete the Chancellor ' s mission , as the High Council called him to deal with another conflict : on Felucia , a skirmish had broken out between the local tribes , and Sifo - Dyas was assigned to quell the conflict . As a consequence , both Sifo - Dyas and Silman were diverted to Felucia aboard T - 6 shuttle 77519 . Death over the Oba Diah moon . However , neither man would ever reach their destination . In the shadows , the Sith wished to take over the clone army in the future , and they plotted against Sifo - Dyas ' life . Count Dooku of Serenno , a defrocked Jedi now known as the Sith Lord named Darth Tyranus , hired the Pykes to kill Sifo - Dyas . Since those criminals wished to gain an advantage over rival crime families , they accepted Tyranus ' offer and shot down Sifo - Dyas ' shuttle over Oba Diah ' s Moon . After inspecting the wreckage , they turned over the Jedi Master ' s corpse to Tyranus as proof of their deal fulfilled . While Sifo - Dyas had died in the crash , Silman was still alive when the Pykes inspected the wreckage . They decided to keep the Chancellor ' s aide locked up in their prison as insurance , recognizing that dealing with a Sith Lord like Tyranus would require it . Legacy . Ten years after the Jedi Master ' s death , the army he had commissioned was discovered by Obi - Wan Kenobi , a Jedi Knight who was investigating on Kamino following the murder of the bounty hunter Zam Wesell by a mysterious colleague of hers , Jango Fett . To his great surprise , Kenobi was greeted by Taun We , a Kaminoan , as if they had been expecting his visit for some time . Prime Minister Lama Su then informed the Jedi of the progress of the clone army ordered by Sifo - Dyas some ten years ago . Although he did not know what the cloners were talking about , Kenobi played along so he could learn more . He bluffed his way into the heart of the hatcheries , and was introduced to the original source of the clones , which was none other than Jango Fett . As soon as he took leave of the Kaminoans , Kenobi contacted the High Council and told them of the clone army and how Sifo - Dyas was supposed to have commissioned it . The Council members , however , had been completely unaware of it for ten years . Ultimately , Sifo - Dyas ' clone army ended up being used at the behest of the Republic , and the conflict between the Separatists and the Republic was named " the Clone Wars " after it . Toward the end of the Clone Wars , a Jedi mission led by Plo Koon and Commander Wolffe found a lightsaber belonging to the long - dead Sifo - Dyas on Oba Diah ' s moon . This unexpected discovery prompted Yoda , Obi - Wan Kenobi , and Anakin Skywalker to investigate his decade - old disappearance . Meanwhile , Tyranus ' master , the mysterious Darth Sidious , was furious to discover that the Jedi were investigating the loose end that was Sifo - Dyas . He ordered Tyranus to clean up his affairs before it was too late . As part of the Sith illusions created by Darth Sidious and Darth Tyranus ' ritual , Sifo - Dyas appeared to Yoda on Moraband . His phantom was being tortured , bound by electricity . The specter begged Yoda to release him , offering in exchange the identity of the Sith Lord . However , Yoda saw through him with his Sith eyes and refused the offer , causing him to merge into Sidious . Behind the scenes . In early drafts of " " , the name of the Jedi who contacted the Kaminoans was Sido - Dyas , and was originally a false identity for Darth Sidious — Obi - Wan Kenobi claimed to have never heard of him , and Mace Windu confirmed no Jedi of that name existed . The spelling " Sifo - Dyas " appears in one draft as a typing error that Lucas preferred to the original name ; thus the scenario of the Jedi ' s identity was rewritten . Additionally , the Jedi Master ' s name was changed in the Portuguese translation to Zaifo - Vias , since his original name sounded much like " se fodias , " a vulgar expression in Brazil . His backstory was promised by George Lucas to be revealed in " " . It wasn ' t until " The Lost One , " a episode of " " , that the character was given a canon background . He was voiced by Paul Nakauchi for his appearance as a hallucination in the episode " Sacrifice . "