The Star Wars franchise has had the habit of assigning the role of comic relief to their main droids and Gareth Edwards had no intention of changing that when he directed Rogue One. Reprogrammed Imperial Droid K-2SO's (Alan Tudyk) sarcasm made him an easy favorite.
Now, in an interview with Comicbook, Tudyk and Rogue One Animation Supervisor Hal Hickel reveal how the creative team developed the droid's back story and it's not as adventurous as we'd hope it to be.
"The backstory was pretty limited. Knowing that he was in the Empire, he was sort of reborn when Cassian gave him his reprogramming. He was enslaved, in a way. He was more of a stoic character. He had to follow orders," Tudyk explained. "Basically, he just scurried around. He did lots of security stuff. He had a big bunch of keys that hung off his belt."
"Once the memory wipe came into play, that's what I really latched onto for the character, as far as he could just speak his mind, whatever came across his circuits," Tudyk noted. "A lot of that was in the script, and then Gareth really encourages the actors to take it and move it even farther beyond."
"In fact, you glimpse another enforcer droid in the Imperial facility and we had him look really spotless. No paint chips or anything, whereas K-2 is all scratched up," Hickel explained further. "We actually considered whether they might even completely remove the Imperial insignia on his shoulder. We decided to keep it, it's kind of scratched up, but you can still see it. We figured the Rebels are kind of rough and tumble and they're not going to be too precious about it."
He added, "We did give it lots of history, scratches and dents, to really communicate that he had seen a lot of action with Cassian."
Given how much K-2SO was banged up and then reprogrammed to assist the Rebel Alliance, it's no wonder that the droid ended up as salty as he was. Imagine having your entire memory and identity erased , wouldn't you end up a bit cynical? Still, K-2SO's experiences definitely makes him a character worth watching.