Ryo Inui

Ryo Inui (犬井 猟), also known by his hero alias "Hound Hero" Hound Dog (ハウンドドッグ), is a Pro Hero and the Lifestyle Guidance Counselor at U.A. High.

Personality
When angry, Hound Dog speaks in a incoherent and violent manner with a mix between words and a sound akin to a dog's growling.

Unforeseen Simulation Joint Arc
Hound Dog along with the other U.A. teachers arrive at the USJ to help Class 1-A and All Might from the League of Villains' attack.

Internship Arc
During the Opening Ceremony, Hound Dog had some final comments. Unfortunately his anger caused his speech to come out as a mix of words and incoherent growling and ending with a howl, scaring a few of the students.

Blood King relieved Hound Dog of his speech and reiterated what Hound Dog wanted to say as the Pro Hero sulked away angrily.

Quirk and Abilities
Dog: Nothing is known about the Quirk except its name. It can be assumed that his Quirk gives him all the advantages that a dog might have, including heightened sense of smell and hearing.

Blood King
Hound and Kan appear to get along well. Kan was the one who approached Hounddog after his angry fit and took over for Hounddog's speech. Kan understood what Hounddog wanted to say.