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 emphasize the disparity between the advanced T-1000 and Schwarzenegger's older T-800 (Cameron characterized the two as "a Porsche" and "a human Panzer tank" respectively). Patrick had previously appeared in the action feature "Die Hard 2", but Furlong had no formal acting experience. Joe Morton was picked to portray Miles Dyson, a Cyberdyne scientist who helped develop the new CPU for the T-800 Terminators. Calling themselves T2 Productions, James and co-producers Stephanie Austin and B.J. Rack rented an office in North Hollywood before starting to assemble the crew for "Terminator 2". Adam Greenberg, who worked on "The Terminator" and "Ghost" (1990),