T-1000 played Kyle Reese in "The Terminator", in the role with the explanation that Skynet managed to acquire Reese's DNA and use it for a new Terminator. Cameron ultimately dropped this idea after deciding the audience would find it too confusing: eventually casting came down to Robert Patrick, as a deliberate contrast to the original Terminator - Cameron stated "I wanted to find someone who would be a good contrast to Arnold. If the 800 series is a kind of human Panzer tank, then the 1000 series had to be a Porsche." For a more machine-like performance, Patrick had to learn
T-1000 the metal skeleton effects of the T-800. The visual effects used in "Terminator 2" to create the T-1000 won the Academy Award for Visual Effects. Entity FX, Inc. is responsible for the visual effects of the T-1001 on "Terminator: The Sarah Connor Chronicles", along with the digital animation of endoskeletons, Hunter-Killers, and the future war sequences on the second season of the show. The company also contributed the digital imagery of James Cameron's "True Lies" and "Titanic". In "Terminator Genisys", the effects of the T-1000 were made by British effects company Double Negative, also responsible for the T-3000 and T-5000