Sakazuki

Admiral Akainu, the "Red Dog"(赤イヌ大将, Akainu Taishō) is an Admiral in the world of One Piece ,being one of only three to hold such a position and being subordinate only to Fleet Admiral Sengoku.

He was known as Vice Admiral Sakazuki before his promotion.He was present at the Ohara incident, being one of the five vice-admirals,leading the Buster Call offensive. He ordered the destruction of an evacuation ship of civilians and soldiers, claiming it needed to be destroyed in case a single scholar managed to sneek on board. His entire face is not seen during his appearance, as it is hidden by his cap, but he seems to look like an ordinary marine. He believes in "Absolute Justice", which is against Aokiji's way of thinking.

''If you are going to do a job,do it thoroughly.If even a signle scholar managed to sneak on board,all the sacrifices made today would have been wasted.Evil must be completely eradicated.
 * Admiral Akainu