Peter Wright

English writer and film director

American intelligence officer; Chief of the CIA's counterintelligence staff from 1954 to 1975

Swedish businessman and inventor

British art historian and soviet spy

British intelligence officer and a spy for the Soviet Union

Director General of MI5

KGB officer

Irish journalist

American journalist and writer

Soviet spy

Cipher clerk, Soviet defector

British physicist and convicted Soviet spy

German-born British theoretical physicist and atomic spy

Canadian mathematician

American chemist

Soviet spy for Britain

Director General of MI5

Director-General of MI5

British civil servant

British stateswoman and prime minister

British-born radio producer, intelligence and Foreign Office officer and double agent

New Zealander cricketer

Director General of MI5; spy fiction writer

English espionage historian, novelist

Australian politician, lawyer and businessman, 29th Prime Minister of Australia

British civil servant and peer

23rd Prime Minister of Australia

British historian

British politician

Polish spy

Member of the British intelligence community and a primary investigator in the spy scandals in the post-war era

British MI5 officer

British MI5 and SIS officer

British spy in the USSR

Soviet spy and GCHQ employee

Former colonel of the KGB

British intelligence officer

Author

British intelligence officer

American spy for the Soviet Union

British activist

British double agent

British politician

Senior executive with Royal Dutch Shell and N M Rothschild & Sons, an advisor to the Edward Heath and Margaret Thatcher governments of the UK

American spy

Central Intelligence Agency counter-intelligence officer and analyst

KGB officer

British spy for the Soviet Union

Soviet spy

British intelligence officer and spy for the Soviet Union

American cryptographer

British cryptanalyst, chess player, and chess writer

Director of GCHQ

FBI agent

British diplomat who spied for Poland

Linguist, soldier, diplomat, university professor, alleged spy

English writer

German-British journalist, diplomat and spy

British civil servant who spied for the Soviet Union