R3-S1

R3-S1, nicknamed "Threece," was an R3-series astromech droid part of the Alliance to Restore the Republic. With an overclocked Intellex V processor, R3-S1 picked up a decidedly vain programming flutter. Not assigned to a specific starfighter, she was employed in the upkeep of technology throughout the Alliance to Restore the Republic's headquarters in the Great Temple of Massassi on Yavin 4. R3-S1 did not work well with others due to her competitiveness, but she excelled at organization, becoming the recognized chief of the astromech droid pool.

Behind the scenes
R3-S1 is a droid character created for the 2016 stand-alone film Rogue One: A Star Wars Story.

Appearances

 * Rogue One: A Star Wars Story
 * Star Wars: Rogue One Secret Mission