Günter Guillaume

Günter Guillaume (1 February 1927 – 10 April 1995) was a German spy. His job was to get information as an agent for East Germany's secret service, the Stasi, in West Germany. Guillaume became West German chancellor Willy Brandt's secretary, and his discovery as a spy in 1973 led to Brandt's resignation as chancellor in what became known as the Guillaume affair.