George Blake

George Blake

male, 87 years old
George Blake (born Georg Behar, November 11, 1922) is a former Dutch-British spy who was actually a double agent for the Soviet Union. Born in...
Melita Norwood

Melita Norwood

female, deceased (2005)
Melita Norwood, née Sirnis was a British civil servant who, for a period of about 40 years following her recruitment in 1937, supplied the KGB (...
Morris Cohen

Morris Cohen

male, deceased (1995)
Morris Cohen a.k.a. in London as Peter Kroger (2 July 1910 - 23 June 1995), was born in New York. His father was from an area near Kiev in...
Jan Valtin

Jan Valtin

male, deceased (1951)
Jan Valtin was the alias of Richard Julius Hermann Krebs (December 17, 1905 - January 1, 1951), a German communist and Soviet agent during the...
Harry Houghton

Harry Houghton

male, 103 years old
Harry Houghton (1906-????) was a spy for the People's Republic of Poland and the USSR during the Cold War. He was part of the Portland Spy Ring.

Perseus

male
Perseus was the codename of a possible Soviet spy alleged to have breached U.S. national security at Los Alamos during the Manhattan project. This...
Klaus Fuchs

Klaus Fuchs

male
Klaus Fuchs at Carey Sublette's NuclearWeaponArchive.org, which includes information about the specific information given by Fuchs to the Soviets...