The Raston Warrior Robot is, apparently, the most perfect killing machine ever devised. In appearance, it looks like a smooth, featureless silver android with a perfect physique. It moves at lightning speed - with a jump, it disappears, only to reappear and land somewhere else.
The robot detects its prey through the use of sensors that detect even the slightest movement. Its armaments are built in; it fires thick metal javelins from the underside of its wrists, and throws razor-sharp discs to dismember or behead. It keeps a store of extra javelins and discs, as well as arrows, swords and metal cord hanging on hooks, relatively close to its area of operations.
Ruthlessly efficient, the Raston Warrior Robot also seems indestructible. One of them was brought to the Death Zone on Gallifrey, where it attacked the third Doctor, Sarah Jane Smith and a legion of Cybermen.
