Gyunei Guss is a character introduced in the film Mobile Suit Gundam: Char's Counterattack.

Gyunei is a Cyber Newtype serving under Char Aznable's second Neo Zeon movement. Unlike past Cyber Newtypes, Gyunei is in full control of himself physically and mentally, and uses his modifications to full effect on the battlefield. Despite his proficiency, Gyunei feels frequently ostracized, feeling that people only recognize his accomplishments due to his enhancements as opposed to skill, causing him to perceive most people as belittling him. This becomes exacerbated after he becomes infatuated with Quess Paraya, causing him to seek out any opportunity to prove himself superior to Char, the true object of her affections.

Gyunei served as a bodyguard and wingman for Char Aznable, who by this time had become the leader of the Neo Zeon movement. He was first seen engaging Amuro Ray with his Jagd Doga just as Char was preparing to drop the Fifth Luna asteroid onto Earth. Despite his artificially enhanced abilities, Gyunei was no match for the more experienced Amuro thus prompting Char to intervene.