The Terminator (also known as T-800 and T-850) is a fictional autonomous robot from the Terminator franchise portrayed by both Arnold Schwarzenegger and numerous actor stand-ins digitally overlayed with Schwarzenegger's likeness. The Terminator itself is part of a series of machines created by Skynet for infiltration-based assassination missions, and while an android for its appearance resembling a human, it is described as a cybernetic organism for being constituted of living tissue over a robotic endoskeleton.