T-1000 structure of whatever it is touching and visually mimic it. In "Terminator 2", the T-1000's default form is portrayed by Robert Patrick, and in "Terminator Genisys", by Lee Byung-hun, while other actors portray the T-1000 in the disguise of specific characters. In "Terminator 2" and "Terminator 2: 3-D Battle Across Time", the T-1000 is presented as a technological leap over the "800 Series" Terminator (Arnold Schwarzenegger). Described by AllMovie as "one of the most memorable roles in one of the most memorable films of the decade", Patrick's portrayal of the T-1000 earned him nominations for Best Villain and Best Supporting
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),