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 which 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.
The Security Service, also known as MI5, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ), and Defence Intelligence (DI). MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989. The service is directed to protect British parliamentary democracy and economic interests and to counter terrorism and espionage within the United Kingdom (UK).
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.
Peter Maurice Wright CBE was a principal scientific officer for MI5, the British counter-intelligence agency. His book Spycatcher, written with Paul Greengrass, became an international bestseller with sales of over two million copies. Spycatcher was part memoir, part exposé detailing what Wright claimed were serious institutional failures he investigated within MI5. Wright is said to have been influenced in his counterespionage activity by James Jesus Angleton, counter-intelligence chief of the US Central Intelligence Agency (CIA) from 1954 to 1975.
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.
Sir Roger Henry Hollis was a British intelligence officer who served with MI5 from 1938 to 1965. He was Director General of MI5 from 1956 to 1965.
Vladimir Mikhaylovich Petrov was a member of the Soviet Union's clandestine services who became famous in 1954 for his defection to Australia.
Morris Cohen, also known by his alias Peter Kroger, was an American convicted of espionage for the Soviet Union. His wife Lona was also an agent. They became spies because of their communist beliefs.
The Portland spy ring was an espionage group active in the UK between 1953 and 1961. It comprised five people who obtained classified research documents from the Admiralty Underwater Weapons Establishment (AUWE) on the Isle of Portland, Dorset, and passed them to the Soviet Union.
Ethel Elizabeth Gee, nicknamed "Bunty", was an Englishwoman who helped her lover spy for the Soviet Union. She was a member of the Portland Spy Ring.
Konon Trofimovich Molody was a Soviet intelligence officer, known in the West as Gordon Arnold Lonsdale. Posing as a Canadian businessman during the Cold War he was a non-official (illegal) KGB intelligence agent and the mastermind of the Portland Spy Ring, which operated in Britain from the late 1950s until 1961.
Lieutenant-Commander Lionel Kenneth Phillip Crabb,, known as Buster Crabb, was a Royal Navy frogman and diver who vanished during a reconnaissance mission for MI6 around a Soviet cruiser berthed at Portsmouth Dockyard in 1956.
Michał Franciszek Goleniewski a.k.a. 'SNIPER', 'LAVINIA',, was a Polish officer in the People's Republic of Poland's Ministry of Public Security, the deputy head of military counterintelligence GZI WP, later head of the technical and scientific section of the Polish intelligence, and a spy for the Soviet government during the 1950s. In 1959, he became a "triple agent" by giving Polish and Soviet secrets to the Central Intelligence Agency that directly caused the exposure of George Blake and Harry Houghton. Goleniewski defected to the United States in 1961. He later made unsubstantiated claims to be Tsarevich Alexei Nikolaevich of Russia.
Theodore Maly was a former Roman Catholic priest and Soviet intelligence officer during the 1920s and 1930s. He lived illegally in the countries where he worked for the NKVD and was one of the Soviet Union's most effective spymasters.
Ring of Spies is a 1964 British spy film directed by Robert Tronson and starring Bernard Lee, William Sylvester and Margaret Tyzack. It is based on the real-life case of the Portland Spy Ring, whose activities prompted "Reds under the bed" scare stories in the British popular press in the early 1960s.
The Game is a British Cold War spy thriller television serial set in London in 1972. The six-part series was created by Toby Whithouse, written by Whithouse, Sarah Dollard and Debbie O'Malley, and first broadcast on BBC America in 2014.
Eric Arthur Roberts was an MI5 agent during the Second World War under the alias Jack King. By posing as a Gestapo agent and infiltrating fascist groups in the UK, Roberts was able to prevent secret information finding its way to Germany. Roberts continued to work for the security services after the war, particularly in Vienna, but it was a time of great anxiety in the services because of the suspicions surrounding double agents such as the Cambridge spy ring.
Graham Russell Mitchell OBE, CB, was an officer of MI5, the British Security Service, between 1939 and 1963, serving as its deputy director general between 1956 and 1963. In 1963 Roger Hollis, the MI5 director general, authorised the secret investigation of Mitchell following suspicions within the Secret Intelligence Service MI6 that he was a Soviet agent. It is now thought unlikely that Mitchell ever was a "mole". Mitchell was an International Master of correspondence chess who represented Great Britain.
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