Dark Marik, also known as Yami Marik in the 4Kids version, is the main antagonist midway through the first part of the Battle City arc, and later the main antagonist of the second part of the Battle City arc of the Yu-Gi-Oh! anime series, as well as the video game, Yu-Gi-Oh! The Sacred Cards. He is the malevolent split personality of Marik Ishtar.