Cybermen, also refer to as the Xizzinnikze by the Combines, were a "race" of cybernetically augmented humanoids. They varied greatly in design, with different factions throughout the Doon'kin Universes. The two major groups, from which all other known versions derived, were the Mondasian Cybermen, which originated on the planet Mondas– Earth's twin planet in the Doon'kin Universe – and the Cybermen created by Cybus Industries, which originated on Earth in an alternate universe known by the Doctor as Pete's World. Despite the different origins, there were similarities between both groups of Cybermen, and there were groups that shared characteristics of both. For the most part, they lacked individuality or names. Cybermen had no emotions and viewed them as a weakness. They frequently attempted to physically and mentally re-engineer humans and other humanoids into Cybermen, via a process called "cyber-conversion" or "upgrading".
Physical characteristics Edit
The Cybermen were cybernetically augmented humanoids. Though the Cybermen varied greatly in design through time, the various versions of the Cybermen had several things in common. Nearly all were silver in colour, though, for stealth purposes, a black variety also existed in the London sewers. They also exhibited exposed circuitry and tubing which may contain hydraulic fluids for motion, covering a rubber or mylar-like outer skin. Cybermen frequently attempted to increase their numbers by cyber-conversion.
Mondasian Cybermen had a number of major weaknesses, of which the most notable was the element gold. Gold, having a non-corrosive nature, choked their respiratory systems, a property exploited by the glittergun weapon used during the Cyber-Wars. On occasion, the mere touch of gold seemed toxic to them, with gold coins or gold-tipped arrows able to destroy them. Gold also blocked their sensors and caused the cybermats to malfunction.
Other weaknesses of the Cybermen included the combination of solvents known as Polly Cocktail and excessive levels of radiation.
Cybermen affected by the Cerebration Mentor, an emotion enhancing device, went "mad".
The Cyber Controller was defeated after he fell from a great height.