Gecko Moria is a former Warlord of the Sea and the captain of the Thriller Bark Pirates in the anime and manga series One Piece. Known for his towering stature and shadow manipulation abilities, Moria is a cunning and ambitious pirate who once sought to become the Pirate King. As the main antagonist of the Thriller Bark arc, he uses the power of the Kage Kage no Mi Devil Fruit to control shadows, creating a formidable army of zombies and proving a significant challenge to Luffy and the Straw Hat Pirates.