The Terminator is the main villain in the 1984 Terminator film. It is a series 800 Terminator created by Skynet, it is a robot, built with living flesh and tissue so it would pass as a human. It is empty of pity and compassion. One was sent to kill Sarah Connor mother of John Connor the future leader of the resistance that fights against Skynet in the future, but it was soon destroyed by Kyle Reese who was sent by the resistance to protect Sarah.
A second unit reprogrammed by the Resistance was sent back in time in 1995, this unit was identical to the first one, but its mission was to protect John Connor who was still a child from another Terminator the T-1000.