James Cameron Schwarzenegger also returned in his role as The Terminator, but this time as a protector. Unlike Schwarzenegger's character—the T-800 Terminator which is made of a metal endoskeleton—the new villain of the sequel, called the T-1000, is a more advanced Terminator made of liquid metal, and with polymorphic abilities. The T-1000 would also be much less bulky than the T-800. For the role, Cameron cast Robert Patrick, a sharp contrast to Schwarzenegger. Cameron explained, "I wanted someone who was extremely fast and agile. If the T-800 is a human Panzer tank, then the T-1000 is a Porsche." Cameron had originally wanted
Terminator 2: Judgment Day the future consequences of his work. They learn that much of his research has been reverse engineered from the damaged CPU and the right arm of the previous Terminator. Convincing him that these items and his designs must be destroyed, they break into the Cyberdyne building, retrieve the CPU and the arm, and set explosives to destroy Dyson's lab. The police arrive and Dyson is fatally shot, but he rigs an improvised dead man's switch that detonates the explosives when he dies. The T-1000 relentlessly pursues the surviving trio, eventually cornering them in a steel mill. The T-1000 and the