William's a 15 year old vampire. He's energetic, flirtatious, sadistic, childish, and a little perverted. He and his two older brothers, Alex (17 years old) and Michael (18 years old), enjoy feeding on attractive women. They can get hurt by the Sun, garlic, and wooded stakes. He and his brothers are nocturnal. They usually hunt for food together, and can turn into bats. He's childish, slightly immature, and energetic.