A Spymaster's a ring leader of a spy ring, run by a secret service. Historical examples include Michael Collins, Sir Francis Walsingham, R. N. Kao, William Wickham, George Washington, William Stephenson, Dai Li, Semyon Semenov, Count Ignatiev, Joseph Peters and the so called "Spymaster's Spymaster" Markus Wolf.… (More on Spymaster)