Walter Schellenberg. The chief of SS Intelligence reached the Allied lines at the war's end. He spent the next three years in Great Britain as the guest of the Secret Service. He undoubtedly provided invaluable information. Tried at Nuremberg, he should have been acquitted, but the Russian judge insisted on a verdict of 'Guilty'. Sentenced to four years' imprisonment, he was released after serving three years because of ill-health. He died a few years later.
Tim Whelby. During 1944 Whelby was promoted to run a new department formed by SIS. Its purpose: counter-espionage. It's sphere of operations: Soviet- occupied Eastern Europe.
It all happened a long time ago.