K-2SO is a fictional character from the Star Wars universe. He is a reprogrammed Imperial droid who serves the Rebel Alliance. K-2SO is known for his tall, imposing stature and his sarcastic sense of humor, which often contrasts with the serious situations he finds himself in. Originally an Imperial security droid, K-2SO was reprogrammed by Cassian Andor to assist the Rebels. He plays a significant role in the film Rogue One: A Star Wars Story, where he helps the team on their mission to steal the plans for the Death Star. K-2SO's loyalty and unique personality make him a memorable character in the franchise.