Cyber-Head

From Tardis Wiki, the free Doctor Who reference

Cyber-Head was the remnant of a previous cyberinvasion that had be repurposed into an anti-cyber weapon. Alistair Gordon Lethbridge-Stewart requested it to destroy the Forth Generation. It was captured by the Cybermen, but the Ninth Doctor delayed it's upgrade programme to the Cybermen until Kreel cleared the buffers. (AUDIO: The Forth Generation)