

Arguably the greatest spy for the West during the Cold War, Dimitriy Polyakov was a Russian Military Intelligence General who turned on Russia. He was run by the CIA and FBI and betrayed by both Ames and Hanssen.

Vladimir Vetrov was a KGB officer who worked for the French intelligence service. The "Farewell Document," shared with President Reagan included Soviet intelligence gained by Vetrov.

While a prisoner in North Korea, George Blake was recruited by the Soviets to spy on the British. He was caught and sentenced to prison but escaped to the Soviet Union.