Greville Wynne was a British businessman and spy, known for his role during the Cold War. Born in 1919, he became involved in espionage after being recruited by the British intelligence agency, MI6. Wynne's work primarily focused on gathering intelligence on the Soviet Union, where he operated as a courier between agents. Wynne's most notable involvement was in the Cuban Missile Crisis, where he helped relay crucial information. In 1963, he was arrested by the KGB and later exchanged for a Soviet spy. Wynne's experiences were documented in his autobiography, highlighting the dangers and complexities of espionage during a tense historical period.