Zellos Zellos was a Human male who served as a Grand Moff of the Sith Empire during the Great Galactic War between the Empire and Old Republic . Zellos commanded the second Imperial invasion of the Mid Rim world of Bothawui — an operation that became a drawn - out ground assault against a guerrilla force of Republic soldier s and Jedi Knights led by the Jedi Master Belth Allusis . Despite impressive Imperial advantages , Bothawui ' s Republic defenders were able to inflict considerable damage to the Imperial strike force . Zellos ' s men eventually defeated the majority of the Republic forces , prompting the Grand Moff to offer Allusis survival in exchange for his surrender . The Jedi refused , and Allusis and his forces were massacred , but not before they managed to kill a majority of Zellos ' s forces . The Battle of Bothawui was a huge embarrassment for Zellos , who was not heard from again after returning to the Empire . Biography . The Human male Zellos lived during the Great Galactic War between the Old Republic and the revitalized Sith Empire , serving as an Imperial Grand Moff . In the initial stages of the war , the Sith Emperor had targeted the Outer Rim Territories in a widely successful campaign . After the Imperial capture of the Seswenna sector , the Emperor turned his sights toward the Mid Rim . The first planned target was the Bothan sector ; however , the first Imperial invasion of Bothan Space met with disaster , as the Republic had anticipated the move and stationed its entire fleet over Bothawui itself . This first major Republic victory provoked the Empire to attempt to redeem its losses by mounting a second campaign to take the planet , with Grand Moff Zellos commanding the assault . With Imperial warships from across the galaxy at his command , the Grand Moff led the second invasion of Bothan Space , this time intending to bombard Bothawui from orbit . The Sith vessels were unable to do so , however , as a powerful planetary shield protected Bothawui ' s surface . Zellos ' s forces — a fifty thousand - strong Imperial army — instead landed on the planet to engage the Republic defenders and destroy the shield generator . The small Republic force of Jedi and soldiers that remained after the first battle at Bothawui was led by Jedi Master Belth Allusis , a leading member of the Jedi High Council who developed new tactics and battle plans to combat the Imperials in the Bothan forests . Zellos and his advisors believed the battle would be a swift victory for the Empire , and so they sent their troops into battle in direct assaults . This proved to be detrimental to the Imperial forces , as Allusis ' s tactics and determination allowed the Jedi and his men to repel the Imperial soldier . For every Republic trooper killed , the Empire lost ten . Zellos was eventually forced to call in reinforcements that overwhelmed the Republic defenders , who rallied to Allusis for one final stand . However , before allowing his men to finish them off , Zellos extended an offer of peace to Allusis . The Grand Moff promised to spare the Jedi Master ' s life if he surrendered , but Allusis refused the offer , and he and his men fought to the death . Before falling , the Republic forces inflicted enough damage on the Imperial army to drive them off Bothawui . Zellos ' s invasion was unsuccessful and served as a major morale boost for the exhausted Republic . The Grand Moff ' s failure on Bothawui later became the focus of a holorecord created by the Kel Dor Jedi Master Gnost - Dural in the aftermath of the end of the war . The record was submitted to the Jedi Archives on Tython alongside a journal kept by Master Dural during the Great War . The journal also made mention of Moff Zellos and postulated that the Imperial commander would not be seen again after being punished by his Sith superiors . Personality and traits . Grand Moff Zellos was a little - known but high - ranking official within the Sith Empire and took part in the Imperial conquest of the galaxy . As the commanding officer during the Battle of Bothawui , Zellos hoped to use his overwhelming numbers to crush the Republic resistance on the planet . However , he and his fellow commanders overestimated their advantage and used simple , straightforward assaults during the battle . This overconfidence was detrimental to their efforts , pushing Zellos to seek reinforcements . When he finally had Allusis and his defenders at his mercy , Zellos offered the Jedi Master peace in exchange for surrender . After his offer was refused , Zellos allowed his forces to kill Allusis and the rest of the Republic troops , inadvertently martyring Bothawui ' s defenders . Behind the scenes . Grand Moff Zellos was introduced in the of the " Galactic Timeline " , an in - universe account of the events leading up to the LucasArts / BioWare massively multiplayer online video game from LucasArts titled " " . The timeline is narrated by Kel - Dor Jedi Master Gnost - Dural , whose voice is provided by actor Lance Henriksen . Zellos is again mentioned and pictured in " The Journal of Master Gnost - Dural " , a book which was included with collector ' s editions of " Star Wars : The Old Republic " . The game and the journal were released on December 20 of 2011 . " The Journal of Master Gnost - Dural " consistently misspells Zellos ' s name as " Zelos . "