You have to feel it in your diaphragm.
—The Grand Master, regarding Davey's failure at passing gas
The Grand Master is gentle but firm in his teaching methods. Not much is known about him other than this, which is plain from the movie.
The Grand Master has dirty blonde hair, blue eyes, and a small black mustache. He always wears a red and black plaid flannel shirt and a long black cape.
Not much is known about the Grand Master's past, other than he has been a resident of Ninja City for quite some time, and that he trained the legendary warrior Cobra-Kai.