Captain Sarguillo was a Zabrak male who held the position of leader in the defense of Aurilia village. This village was located on the planet of Dathomir during the era of the Galactic Civil War.
Sarguillo was committed to ensuring the safety of the village by any means necessary. On one occasion, he gave orders to a Force-sensitive individual, dispatched to Aurilia by the Old Man, to eliminate a Sith Shadows patrol. Following this, Sarguillo instructed the same individual to capture a Commander from one of the Shadows' bases for the purpose of interrogation. Subsequently, with the assistance of the Force-sensitive individual, he spearheaded the defense of the village against overwhelming waves of Shadows.
At a later time, stormtroopers launched an attack on Aurilia, during which Mellichae, a Dark Jedi who had been imprisoned there, managed to escape. Two days later, a Rebel operative arrived in the village in search of a fragment belonging to the Codex of Tython, an ancient Jedi Holocron that Mellichae had in his possession. Captain Sarguillo informed the agent about Mellichae's escape and provided directions to where the Dark Jedi could be found. Sarguillo explained that he was unable to personally pursue Mellichae due to his responsibility to maintain order in Aurilia. Despite facing attacks from both Mellichae and the Sith Shadows, the agent successfully defeated them and retrieved the Holocron fragment from the Zabrak. Subsequently, Mellichae was once again taken into custody in Aurilia. The agent then proceeded to search for Axkva Min, a Nightsister who was being held captive in the Nightsister Stronghold. Sarguillo provided the agent with the Key of Exile, which was necessary to gain entry to the Chamber of Banishment where Min was imprisoned.
Sarguillo was featured as a non-player character within the Star Wars Galaxies video game. This was a massively multiplayer online role-playing game that was developed by Sony and distributed by LucasArts, before the game's servers were shut down on December 15, 2011.