Like Shachi, he likes women and is loyal to his captain, Law. As a teenager, he was a bully who was prone to mocking people and picking fights. Having grown up in a North Blue port, Penguin is an experienced swimmer. Penguin resisted the burst of Haki released by Silvers Rayleigh in the Human Auction House which shows that he has a strong will. In the anime, he has been seen using martial arts next to Shachi and is quite proficient at it.