High Quality Content by WIKIPEDIA articles! The T-1000 is a fictional mimetic poly-alloy (liquid metal) assassin and the main antagonist in Terminator 2: Judgment Day controlled by the series main antagonist Skynet. The T-1000 is portrayed primarily by Robert Patrick; however, being a shape-shifter, the T-1000 is played by other actors in some scenes of the film. In Terminator 2, 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 Actor at the 1992 MTV and Saturn Awards and was ranked #39 in the Online Film Critics Society`s "Top 100 Villains of All Time" in 2002, and #29 on Wizard magazine`s "Top 100 Greatest Villains Ever" list.