Liquid Ocelot is the main antagonist of Metal Gear Solid 4: Guns of the Patriots. He is the transformed identity of Revolver Ocelot, who adopts the persona and supposed will of Liquid Snake through psychological conditioning and nanomachine manipulation. As the leader of the global resistance against the Patriots, he drives the conflict of the game and serves as Snake’s final major enemy. His role is central to the story’s themes of identity, control, and legacy.