The Terminator is the first work in the Terminator franchise and the first film of the movie series. It stars Arnold Schwarzenegger, Michael Biehn, and Linda Hamilton, with Lance Henriksen, Paul Winfield and Earl Boen in supporting roles.
Originally, Terminators were purely robotic and weren’t covered with living tissue. The Series 800 Terminator was a breakthrough in developing Terminators that were similar to humans. Skynet discovered a method that allowed it to grow living tissue over the endoskeleton, making the new Terminators almost impossible to spot.