A CIA agent who worked Harry Pearce who was then working for MI6 within Berlin with 1980's during the Coldwar where they turned the Elena Gavrik Wife of a KGB Agent Illya Gavrick. They turned her by presenting her with false KGB file that made out her parent had wrongly arrested, interrogated and murdered. In Series 10, Episode 1 Jim Coaver catched up Harry in london years afterwards and was eventaully killed by hitmen working for former KGB blackops who didn't want the bi-lieteral alliance between Russia and the UK to fall through in Series 10, Episode 5