Wolf W. Arthur, is the captain of the Sea Wolf Pirates. A former member of the CP-0 organization, he mastered the Rokushiki and also originally combined the Rankyaku technique with the Black Leg Style, and he also learned the Hasshoken from his father, which greatly strengthened his battle skills and by extending his bounty. He also used to work as a waiter undercover, where he learnt more precision and politness. He is also an affiliate and sometimes ally of the Revolutionary Army. His possession of Haki easily made him one of the strongest and youngest CP-0 members.There were some rumors that he has Devil Fruit powers, and although he hasn't consumed one yet he is in possession of a Devil Fruit. His mother, Wolf W. Marianne, a pirate, died after giving birth to him. His father, Wolf W. J