Martyn Townsend
The Pale Man was a C19 operative who had been modified with Cyberman technology. He functioned as the liason between the side of C19's official operations (such as liasing with UNIT and running the Glasshouse) and its "darker" side, such as the The Vault (C19). He also was the point of contact for operatives outside of C19.
Prior to joining C19, he lost his arm in an unspecified accident. He was recruited with the promise of a prosthetic replacement, but the actual procedure replaced all his limbs and his internal organs. Due to his partial cyberconversion, he was approximately ten times stronger than a normal human. He was also described as superhumanly fast. He lacked a sense of taste.
He was described as pale, with a scar on his face, and hid the fact that his eyes had been replaced with microfilament discs behind silver-rimmed sunglasses. He invariably wore a light gray suit. (MA: The Scales of Injustice)
The Pale Man returns in Business Unusual, where he manipulates a UNIT soldier who survived the Axos invasion, to capture the Brigadier. He also reveals that his real name is Michael Townsend and tries to change his deteriorating condition iby converting to the body of an Auton. but in the end it fails and dies.