His quirk is what he calls Wolfhound. It's a cross between Dog and Wolf, as his mother had the quirk Dog, and his father has the quirk Wolf.

He can howl, bark, snarl, and growl just like a real dog and wolf, but he chooses not to since he's not a dog or a wolf, but a human.

     Despite this, he does yelp like a dog when he gets hurt or startled, and he sometimes howls because he just gets the urge to howl. He also involuntarily whimpers in his sleep at times, such as when he's having a bad dream.

He has a great sense of smell and hearing just like a dog/wolf, and he can pretty much do whatever a dog/wolf can do.

He has the ability to shapeshift into a wolf, too, just like his half brother and his father. As well as a dog, like his mother. So in wolf form he does look half wolf and half some other breed.