General Grievous

Stands at an intimidating seven foot one inch tall; Grievous was originally a Kaleesh warlord who fought against the Huk invaders on his homeworld of Kalee; He was severely injured in a shuttle crash orchestrated by Count Dooku and Darth Sidious, who saw him as a potential asset for their plans; His body is primarily a mechanical construct, housing only his vital organs from his original Kaleesh form; Possesses four arms that can split into two, allowing him to wield multiple lightsabers simultaneously; Trained in lightsaber combat under Count Dooku's tutelage, demonstrating a level of skill that allows him to rival the Jedi; Wields lightsabers taken from fallen Jedi as both weapons and trophies; Exhibits exceptional tactical acumen, leading the Separatist Droid Armies in countless engagements against the Republic's Grand Army; Grievous has a distinctive hacking cough due to the organic nature of his remaining lungs; Obsessively collects Lightsabers from Jedi he has killed and keeps them as trophies; Grievous is capable of inhuman acrobatics and physical feats due to his cybernetic enhancements; Known for his relentlessness and ruthlessness, earning him a reputation of fear throughout the galaxy; Develops a personal enmity with Jedi Master Obi-Wan Kenobi, whom he duels on numerous occasions; Ambitious, arrogant, and prideful, his end goal is victory at all costs; Despite his loyalty to the cause of the Confederacy of Independent Systems, Grievous is primarily driven by personal hatred and the desire for revenge against the Jedi Order and the Republic, which he perceives as having wronged him and his people; Near the end of the war, Grievous launches a daring assault on the Republic's capital, Coruscant, and manages to take Supreme Chancellor Palpatine captive, though he eventually loses him to the Jedi; After the death of Count Dooku, Grievous becomes the de facto leader of the Separatist Alliance, prolonging the war until his death at the hands of Obi-Wan Kenobi; He was killed by Obi-Wan Kenobi on Utapau after a fierce duel that ended with Kenobi shooting him in the chest with a blaster.