KV-222 was a stormtrooper of the Galactic Empire, specifically a human, who, along with KA-336, functioned as a personal protector for Lieutenant Commander Sabé from 3 ABY to 4 ABY. When Sabé embarked on a mission to assassinate the Skakoan nationalist Jul Tambor, the guards placed wagers amongst themselves regarding her chances of survival. After four days, their commander confronted them about this incident; however, it was actually the former handmaiden Dormé in disguise as Sabé. Once the troopers confessed what they were doing, Dormé questioned them about the specifics of their conversation, and they revealed that Sabé was acting under the orders of Darth Vader in disguise and was going alone to assassinate Tambor.
Later, Vader called the disguised Dormé into a room where he stood with his lightsaber activated, and the two guards were kneeling on the floor. Vader stated that the guards had failed both their commander and the Empire. After Vader asked Dormé what she intended to do with the troopers, they pleaded with her, insisting on their innocence. Vader then told the troopers that their commander intended to execute them, at which point they attempted to seize an E-11 medium blaster rifle to defend themselves. Dormé secured the weapon first, and after a short scuffle, she shot both troopers, although she did not kill them.