Ryo Inui , also known as the Hunting Dog Hero: Hound Dog, is a Pro Hero, and the lifestyle guidance counselor at U.A. High School. Ryo has the appearance of a dog due to his Quirk. He has a scruffy mane of blond hair sticking straight out behind his head. He also wears a muzzle over his slightly pointed snout in his hero costume. When angry, Ryo speaks in an incoherent and violent manner with a mix of words and a sound akin to a dog's growling.