Cyber-Controller (The Tomb of the Cybermen)

A Cyber-Controller directed lesser-ranking Cybermen and Cyber-Leaders from the Cyber-Tombs and, later from Cyber-Control.

Biography
In the 25th century, the Second Doctor and his companions found the Cyber-Controller in the Cyber-Tombs, and he immediately took charge of the Cybermen. He told the archaeological party they would become the first of a new race of Cybermen.

Using a Cyber-gun, Eric Klieg tried to hold the controller hostage when he was low on power, but he was unsuccessful.

Toberman, a partially cyber-converted human attacked the Controller after he killed Kaftan after she had fired on him with her gun, just before the Doctor sealed off the Cyber-Tombs, freezing the Cybermen once more. (TV: The Tomb of the Cybermen) However it was revealed that the Controller survived. On returning to Telos, the Sixth Doctor met the Cyber-Controller again, this time in a more advanced body. He interrogated Lytton and prepped him up for conversion. He tried to kill the Doctor, but Lytton stabbed him in the arm, causing him to bleed green fluid. The Cyber-Leader and Lieutenant attempted to assist him, but a blast from a cyber-gun fired by the Doctor killed them. The Cyber-Controller waved his arms frantically trying to kill the Doctor, but in self-defense, he fired the cyber-gun again destroying the big domed leader for good. (TV: Attack of the Cybermen)

Appearance
Taller than the others, the Controller found in the Cyber-tombs on Telos had an enlarged, dome-shaped semi-transparent brain case lit from the inside. He also lacked the Cyberman chest unit and the Cyberman head handles, and his head was grey instead of silver. The Cyber-Controller had such authority that, upon awakening, the other Cybermen appeared to salute him. (TV: The Tomb of the Cybermen) Later, when he co-ordinated actions from Telos, the Controller had changed physically, now having changed to resemble the other Cybermen of that era. He had a chest unit, but still lacked the Cyberman head handles. He also now had a metal, though still enlarged, brain case. (TV: Attack of the Cybermen)