German theoretical physicist Klaus Fuchs worked on many significant theoretical calculations relating to the first nuclear weapons. He was also an atomic spy who provided information about nuclear weapons production to the Soviet Union during World War II. He was convicted and jailed for nine years, following which he resumed his career as a physicist.
Markus Wolf was a German intelligence officer best remembered for his service as the chief of the Main Directorate for Reconnaissance. He played an important role during the Cold War and is often counted among the most popular spymasters during the war. Thanks to his elusiveness, Markus Wolf was nicknamed the man without a face in the West.
Ursula Kuczynski was a German Communist activist. She is best remembered for her work as a spy for the Soviet Union. She coordinated with Klaus Fuchs, a German atomic spy, who started passing information on the British atomic bomb project through Ursula Kuczynski to the Soviet Union.
Josef Jakobs was a German spy who was caught by the United Kingdom during World War II. He was caught after parachuting into the UK and was sentenced to death. On 15 August 1941, Josef Jakobs was put before a firing squad at the Tower of London, making him the last person to be executed at the famous site.
Tamara Bunke was an Argentine-born East German spy and revolutionary. She played an important role in the Cuban government and in various revolutionary movements across Latin America. She also fought during the Bolivian insurgency and was killed in an ambush by Bolivian Army Rangers while fighting alongside communist guerrillas led by Che Guevara.
Harro Schulze-Boysen was a German publicist and military officer who was active during the Second World War. He is credited with publishing a left-leaning political magazine called Der Gegner (The Opponent). Personalities like Karl Korsch, Ernst von Salomon, and Raoul Hausmann among others contributed to the content of the magazine.
Benita von Falkenhayn was a German baroness best remembered for her role as a spy for the Republic of Poland. She is also remembered for her association with Major Jerzy Sosnowski, who encouraged her to obtain secret documents pertaining to German's invasion of Poland. Benita von Falkenhayn was found guilty of treason and espionage and was sentenced to death.
Manfred Ramminger was a German architect and KGB agent. He is best remembered for stealing an American AIM-9 Sidewinder, which he brought to the Soviet Union. In 1968, Manfred Ramminger was arrested along with his aides by West German authorities.