Harold Adrian Russell "Kim" Philby was a British intelligence officer and a spy for the Soviet Union. In 1963, he was revealed to be a member of the Cambridge Five, a spy ring that had divulged British secrets to the Soviets during World War II and in the early stages of the Cold War. Of the five, Philby is believed to have been the most successful in providing secret information to the Soviets.
Cold War espionage describes the intelligence gathering activities during the Cold War between the Western allies and the Eastern Bloc. Both relied on a wide variety of military and civilian agencies in this pursuit.
The Cambridge Five was a ring of spies in the United Kingdom that passed information to the Soviet Union during the Second World War and the Cold War and was active from the 1930s until at least the early 1950s. None of the known members were ever prosecuted for spying. The number and membership of the ring emerged slowly, from the 1950s onwards.
John Cairncross was a British civil servant who became an intelligence officer and spy during the Second World War. As a Soviet double agent, he passed to the Soviet Union the raw Tunny decryptions that influenced the Battle of Kursk. He was alleged to be the fifth member of the Cambridge Five. He was also notable as a translator, literary scholar and writer of non-fiction.
Anthony Frederick Blunt, styled Sir Anthony Blunt from 1956 to November 1979, was a leading British art historian and Soviet spy.
Nathaniel Mayer Victor Rothschild, 3rd Baron Rothschild,, was a British scientist, intelligence officer during World War II, and later a senior executive with Royal Dutch Shell and N M Rothschild & Sons, and an advisor to the Edward Heath and Margaret Thatcher governments of the UK. He was a member of the prominent Rothschild family.
Guy Francis de Moncy Burgess was a British diplomat and Soviet double agent, and a member of the Cambridge Five spy ring that operated from the mid-1930s to the early years of the Cold War era. His defection in 1951 to the Soviet Union, with his fellow spy Donald Maclean, led to a serious breach in Anglo-United States intelligence co-operation, and caused long-lasting disruption and demoralisation in Britain's foreign and diplomatic services.
Donald Duart Maclean was a British diplomat and Soviet double agent who participated in the Cambridge Five spy ring. After being recruited by a Soviet agent as an undergraduate student, Maclean entered the civil service. In 1938, he was appointed as Third Secretary at the British embassy in Paris. He served in London and Washington, D.C., achieving promotion to First Secretary. He was subsequently posted to Egypt, and then was appointed head of the American Department in the Foreign Office.
Sir Dick Goldsmith White, was a British intelligence officer. He was Director General (DG) of MI5 from 1953 to 1956, and Head of the Secret Intelligence Service (MI6) from 1956 to 1968.
An Englishman Abroad is a 1983 BBC television drama film based on the true story of a chance meeting of actress Coral Browne with Guy Burgess, a member of the Cambridge spy ring who spied for the Soviet Union while an officer at MI6. The production was written by Alan Bennett and directed by John Schlesinger. Browne stars as herself.
Yuri Ivanovich Modin was the KGB controller for the "Cambridge Five" from 1948 to 1951, during which Donald Duart Maclean was said to have passed atomic secrets to the Soviets. In 1951, Modin arranged the defections of Maclean and Guy Burgess. Modin's predecessors in control of the damaging Cambridge spy ring were executed during Stalin's Great Purge.
Bill Haydon is a fictional character created by John le Carré who features in le Carré's 1974 novel Tinker Tailor Soldier Spy. He is a senior officer in the British Secret Intelligence Service who serves as a Soviet mole. The novel follows aging spymaster George Smiley's endeavours to uncover the mole. The character is partly modelled after the real-life double agent Kim Philby, part of the notorious Cambridge Five spy ring in Britain, who defected to the USSR in 1963.
Norman John Klugmann, generally known as James Klugmann, was a leading British Communist writer and WW2 Soviet Spy, who became the official historian of the Communist Party of Great Britain.
Countries with major counterintelligence failures are presented alphabetically. In each case, there is at least one systemic problem with seeking penetration agents when few or none may actually have existed, to the detriment of the functioning of the national service involved.
Arnold Deutsch (1903–1942?), variously described as Austrian, Czech or Hungarian, was an academic who worked in London as a Soviet spy, best known for having recruited Kim Philby. Much of his life remains unknown or disputed.
Alice Friedmann, known as Litzi Friedmann, was an Austrian communist who was the first wife of Kim Philby, a member of the Cambridge Five. Records identify her as the Soviet agent with the code name Mary.
Guy Maynard Liddell, CB, CBE, MC was a British intelligence officer.
Blade on the Feather is a television drama by Dennis Potter, broadcast by ITV on 19 October 1980 as the first in a loosely connected trilogy of plays exploring language and betrayal. A pastiche of the John Le Carré spy thriller and transmitted eleven months after Anthony Blunt was exposed as the 'fourth man', the drama combines two of Potter's major themes: the visitation motif and political disillusionment. The play's title is taken from "The Eton Boating Song".
Kathleen Maria Margaret Sissmore, MBE (1898–1982), was known as Jane Sissmore and then Jane Archer after her marriage in 1939. In 1929 she became the first female officer in Britain's Security Service, MI5, and was still their only woman officer at the time of her dismissal for insubordination in 1940. She had been responsible for investigations into Soviet intelligence and subversion. She then joined the Secret Intelligence Service (MI6), but when Kim Philby, later to be exposed as a double agent, became her boss he reduced her investigative work because he feared she might uncover his treachery.
A Spy Among Friends is a British espionage thriller television series, starring Guy Pearce, Damian Lewis, and Anna Maxwell Martin. It is based on the book by Ben Macintyre, adapted by Alex Cary and directed by Nick Murphy. It was available to stream on ITVX in the United Kingdom from December 2022, Amazon Prime Video in Canada from February 2023, and MGM+ in the United States from March 2023.
