Tanizaki
From Tardis Wiki, the free Doctor Who reference
Dr. Tanizaki was a Japanese doctor studying cybernetics who Ianto Jones hired to help reverse his girlfriend Lisa Hallett from her conversion into a Cyberman. He showed a keen interest in the Cybermen ever since the Battle of Canary Wharf.
He died when Lisa tried to "thank" him by removing his human weaknesses. (TW: Cyberwoman)
