Controller X, nicknamed X, is the main antagonist of the 2004 Godzilla film, Godzilla: Final Wars. He is an acrimonious malevolent alien warlord who seizes control of his species after murdering his former leader, and subsequently unleashes several kaiju onto the earth, revealing he wishes to cause humanity's annihilation and conquer the Earth in a violent, villainous, obstreperous, and destructive way by taking over the minds of Earth's monsters and ordering them to destroy the Earth's cities.