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
T-1000 reform and reshape itself at will, due to its "cells" having been programmed by Skynet with on-board nanotechnology. This technology can be programmed with commands from Skynet, and can help the T-1000 scan the cellular makeup of whatever it is touching (including the DNA of living animals), and can magnetically attract broken off pieces of itself back to the main body. The T-1000's weaknesses are extreme temperatures and its overall lack of knowledge concerning other Terminators. When it was frozen solid from a coating of liquid nitrogen, it could not move; it was then shot by the Terminator and split