Robot is the main villain of Robots. Robot got created by Inventor a long time ago, but then malfunctioned, and now he is a very bad guy. Robot now tries to mess things up, and destroy THE WORLD, but in the first episode, Inventor and Robot need to work together for the first time ever; but they became enemies again afterwards quickly.

Although the name of the comic book series is Robots, there are no other robots besides him. The series should be called "Robot."