List of Famous Spys

Herman Simm is a former chief of the Estonian Defence Ministry's security department and convicted Russian spy.

Whittaker Chambers was an American writer-editor, who, after early years as a Communist Party member (1925) and Soviet spy (1932–1938), defected from the Soviet underground (1938), worked for Time magazine (1939–1948), and then testified about the Ware group in what became the Hiss case for perjury (1949–1950), often referred to as the trial of the century, all described in his 1952 memoir Witness. Afterwards, he worked as a senior editor at National Review (1957–1959). US President Ronald Reagan awarded him the Presidential Medal of Freedom posthumously in 1984.

Sir John Croft, 1st Baronet, DL, FRS (1778–1862) was an English diplomat, and spy for Wellington against Napoleon.

Hede Tune Massing, née "Hedwig Tune", was an Austrian actress in Vienna and Berlin, communist, and Soviet intelligence operative in Europe and the United States during the 1930s and 1940s. After World War II, she defected from the Soviet underground. She came to prominence by testifying in the second case of Alger Hiss in 1949; later, she published accounts about the underground.

Keith Brian Alexander is a retired four-star general of the United States Army, who served as director of the National Security Agency, chief of the Central Security Service, and commander of the United States Cyber Command. He previously served as Deputy Chief of Staff, G-2, United States Army from 2003 to 2005. He assumed the positions of Director of the National Security Agency and Chief of the Central Security Service on August 1, 2005, and the additional duties as Commander United States Cyber Command on May 21, 2010.

Willi (Willy) Lehmann was a police official and Soviet agent in Nazi Germany.

William Egan Colby was an American intelligence officer who served as Director of Central Intelligence (DCI) from September 1973 to January 1976.

Frank Herbert Dedrick Pickersgill was a Canadian hero of World War II.

Julius Rosenberg and Ethel Rosenberg were American citizens who were convicted of spying on behalf of the Soviet Union. The couple were accused of providing top-secret information about radar, sonar, jet propulsion engines and valuable nuclear weapon designs. Convicted of espionage in 1951, they were executed by the federal government of the United States in 1953 in the Sing Sing correctional facility in Ossining, New York, becoming the first American civilians to be executed for such charges and the first to suffer that penalty during peacetime.