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 (character) each "model". The "Terminator" title has also been used as a generic name for other human-simulating characters in the "Terminator" universe, such as the liquid metal shapeshifting T-1000 antagonist in the sequel "" and a T-850 in the sequel "". The end credits of the first three "Terminator" films list Schwarzenegger's character as simply "The Terminator", while in "Terminator Genisys", he is credited as "Guardian". In "Terminator Salvation", a Terminator resembling Schwarzenegger created via facial CGI—used because Schwarzenegger's duties at the time as Governor of California prevented him from working on the film—over Roland Kickinger's on-set performance is credited as