Cyber-Controller

The Cyber-Controller served as an authority figure for both the Mondasian Cybermen of our universe and the Cybus Cybermen of another universe. The Controller gave orders to the Cyber-Leaders and their subordinates from a central base.

Mondasian Cyber-Controller
On Telos, a Cyber-Controller awoke with the other Cybermen from the Cyber-tombs and took charge. Taller than the others, the Controller had an enlarged, dome-shaped semi-transparent brain case lit from the inside. He also lacked the Cyberman chest unit. The Cyber-Controller had such authority that, upon awakening, the other Cybermen appeared to salute him. (DW: The Tomb of the Cybermen)

Later, he served to co-ordinate from Telos. He recognized the Doctor, who he had met previously. The Controller had changed physically, now having changed to resemble the other Cybermen of that era. He had a chest unit. He now had a metal, though still enlarged, brain case. (DW: The Tomb of the Cybermen)In NA Iceberg The controller is seen as he was before the Second Doctor met him on Telos revealed to be the cyber-planner with a cyber-converted body (which explains the large crainium).

Cybus Cyber-Controller
The Cybermen of the other universe made John Lumic, their creator, the Cyber-Controller, albeit against his will. The Controller acted in a similar way to the Mondasian Cyber-Controllers, though unlike them, he remained seated in a chair, connected to it by tubing. He did, however, have full mobility as long as he disconnected the tubing. This Cyber-Controller wasn't much else different from the other Cybermen, except his brain was visible and he had more advanced vision circuits. (DW: The Age of Steel)

When the Cybermen invaded this universe in 2007, they had designated a new Cyber-Leader, though it was a cyberman with black "handle bars". During the "Battle of Canary Wharf", the Cybermen automaticly upgraded a cyberman to Leader when the previous had been destroyed.(DW: Army of Ghosts / Doomsday)