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
John Connor attacked by a T-X Terminator (Kristanna Loken), which was sent from the future. Unlike its predecessors, the T-X's objective was to terminate his future officers as secondary targets because John's location was unknown. When it encounters John it changes its priority to focus entirely on him and Kate. A protector T-850 (Schwarzenegger), who is a doppelgänger of John's previous protector, is also sent back in time to protect him, explaining that Judgment Day had only been delayed to July 25, 2004, which happens to be only hours away. The T-850 also states that it was not sent from the future