K-2SO (Kay-Too-Ess-Oh or Kay-Tuesso or Kaytoo-Esso or Kaytuess-Oh), abbreviated K-2 (Kay-Tu or Kaytoo) or Kay or K, was a modified KX-series security droid who served in the Alliance to Restore the Republic, despite having been originally created for the Imperial Army.

K-2SO is a KX-series security droid originally created by the Empire, reprogrammed by Cassian Andor to serve the Rebel Alliance. He is co-pilot and "sidekick" to Andor, and lends comic relief to the film.

K-2SO (sometimes spelled Kaytoo Esso or Kay-Tuesso) is a reprogrammed Imperial Enforcer droid who appears in the Star Wars anthology film Rogue One. He was originally built to serve in the Galactic Empire's armed forces, until at some point got reprogrammed by Captain Cassian Andor to serve the Rebel Alliance.

Explore the development of this reprogrammed Imperial droid, from initial pitch and character design through Alan Tudyk's performance.

A reprogrammed Imperial security droid now loyal to the Alliance, K-2SO is an alarming sight standing within a secret Rebel base. The pragmatic droid is an effective insertion agent, as he can blend in perfectly at Imperial installations and outposts.

"K-2SO: The Droid" is a featurette for Rogue One: A Star Wars Story that covers the development of the droid character K-2SO for the film.

Potassium sulfide is just KSO, so the "2" seems to point more to sulfate or sulfite. I'm not familiar with the food preservative K2SO3, but K2SO4 (potassium sulfate) is found in plant fertilizers. It is corrosive and irritant, so it would fit the droid's character nicely.

Feb 22, 2018 · K-2SO (Kay-Tuesso), abbreviated K-2 (Kay-Tu or Kaytoo) or Kay, was a KX-series security droid originally created for use in the Galactic Empire’s armed forces.

K-2SO was originally intended as a security droid for the empire, but was reprogramed to work for the Alliance. K-2SO was capable of hacking, using weaponry and co-pilot and pilot ships. A very handy droid to have on your side...

A reprogrammed Imperial Security Droid now loyal to the Alliance, K-2SO is an alarming sight standing within a secret Rebel base. The pragmatic Droid is an effective insertion agent, as he can blend in perfectly at Imperial installations and outposts.