Christopher C. Polk

	Human, Cyberman
	Euro-Space Administration
	Earth
	The Harvest
	Mark Donovan

Christopher C. Polk, more commonly known simply as Polk, was one of over twenty individuals, all pilots or Science Officers with the Euro-Space Administration, who volunteered for cybernisation as a part of C-Programme. After he was converted to Cyberman, Polk attempted to kill Ace and Hex in 2021. (AUDIO: The Harvest)