Katsuya is a man in his mid-20's with tan skin and brown hair, which he wears in a forehead-sweeping cut with long sideburns.

Overall, his style evokes the image of a fashionable man. He wears a tailored gray suit with a peak-lapeled jacket, a burgundy dress shirt and gray tie with black oxfords; he is never seen without his rectangular, silver-rimmed sunglasses with red lenses.

 As a police officer, he carries his gun in a holster on his hip.