Raven (The Cybermen)

Raven was a female Mondasian. A heretic, she was selected by the religious leader to accompany a Cyberman scout into the Blisterlands in search of the Lizard Kings. They found the Dead Heart of the World and awakened Kho'dja, who told them the history of Mondas. The Cyberman then killed him and, declaring that the Cybermen would take control of the planet, had Raven placed in the cyberfication machinery, converting her into a Cyberman. (DWM: The Dead Heart)