Sir Crocodile, AKA Mr. 0, (サー・クロコダイル, Sā Kurokodairu) is one of the major and also, the longest-running antagonist in the anime and manga, One Piece and the main antagonist of the Alabasta Saga. He was the president of a secret crime organization called Baroque Works and was a member of the Seven Warlords of the Sea (called the "Shichibukai" (七武海, Seven Military Seas) in the Japanese versions). After he was defeated by the series protagonist, , he was arrested and sentenced to life imprisonment in Impel Down, a maximum security prison known for being inescapable. He recently was able to escape, however, with the help of Luffy and several other prisoners from Impel Down.