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
T-1000 he attended junior high school, and her father, Robert (David Andrews), who was the primary creator of Skynet by using Cyberdyne Systems' research. The T-1000's successor is the T-X, designed to not only terminate humans but also rogue Terminators reprogrammed by the Resistance, an "anti-terminator terminator" as stated by John Connor. The T-X is a composite of the T-800 and T-1000, combining the former's solid endoskeleton covered with the latter's liquid metal "mimetic polyalloy", allowing it to take the shape of any humanoid it touches. Because it is only coated in this material, it is possible to remove it from