Autons
The Autons are controlled by a hive-mind: the Nestenes. On their second visit to Earth the Master took control of the Autons in his own personal feud with the Doctor. The Autons came from deep space to invade the Earth on two occasions, but were defeated by the Doctor both times. The Autons are mindless killing machines, and generally take on the appearance of shop manequines so they can infiltrate the heart of Earth's cities before attacking the populance. Autons can take on the appearance of humans, the subject being copied is either killed or "frozen" into a wax-work for storage. Autons are virtually indestructable, but killing the hive-mind, the Nestene, will kill all the Autons that it controls.
Strengths:
Ruthless
Virtually Indestructable
Can take on the appearance of normal and/or high-ranking humans.
Weaknesses:
Controlled by a hive-mind, and if destroyed will kill all the Autons.
Slow
Appearences: Spearhead from Space, Terror of the Autons