The Master Control Program (MCP), voiced by David Warner, is the main villain of the Disney movie Tron. It is an artificial intelligence mainframe computer created by Ed Dilinger (also played by Warner) that ruled over the computer world. During the rule of the MCP, many programs were enslaved and forced to play games against its henchmen, Sark.
It is also a villain in Kingdom Hearts II, in the Tron-based world, Space Paranoids. It wants to kill Tron for interfering with its reign, and utilizes the Heartless to try and do so. However even after enhancing Sark to giant-size and fighting Tron, Sora, and company directly, both he and Sark are destroyed.
Parodies
In the South Park episodes "Jewbilee" and "Super Best Friends", Moses took the form of the Master Control Program.