Grey Wolf(or often otherwise known as the the Black Wolf) is a vicious warrior with a total strategies and cunning skills. He is one of Dragon's commander and Fox's father's only rival. He's the father of the 3 wolf ninja and a very formidable opponent.
His fur are timberwolf-gray and in midnight, he's jet black. His mouth got curved sharp canine fangs; needle sharp. His left side of his eyes is glowing yellow while the other is glass blue with a scar. He's very muscular and got a long wagging tail.
Black Wolf also wears some blue overalls.