Oksana Vladimirovna Kuznetsova

 was a member of the royal household of the Tsar Boris Fyodorovich Godunov and complained to the Ninth Doctor about his death. She was Boris' death and how the real Dimitry murdered him. She was convinced that Grishka was Dimitry and thought that he was possessed by the Devil when she saw the orb in his chest. Whilst praying for his soul, she showed him an idol which briefly restored his humanity. (AUDIO: The False Dimitry)