Akainu

Admiral Akainu (赤犬?), was known as Sakazuki (サカズキ?) prior to his promotion, and nicknamed, "Red Dog" (レッドドッグ, Reddo Doggu?), has the power of an unnamed logia Devil Fruit that gives him the power to control or create magma and lava. Akainu practices Absolute Justice, an extremely ruthless interpretation of the greater good, such as destroying an entire ship full of escaping civilians in the off chance that one criminal might be hiding amongst them. He is also notable for wearing a cap low over his eyes, obscuring his facial features for all of his early appearances. Akainu was the one responsible for Ace's death. He is voiced by Fumihiko Tachiki in the Japanese version of the anime. In the flashback from 20 years before the current story, he was voiced by Michio Nakao.