Sidney Reilly

Russian-born British spy known for his daring exploits and escapes.
March 19, 2015/by mlong43

Rudolf Abel

Notorious British-raised Soviet Cold War spy swapped for U-2 pilot.
March 19, 2015/by mlong43

Robert Hanssen

American FBI agent who passed information to Soviet intelligence.
March 19, 2015/by mlong43

Richard Sorge

Soviet military intelligence officer who ran a spy ring against the Japanese.
March 19, 2015/by mlong43

Mata Hari

A Dutch exotic dancer who worked as a double-agent for France and Germany.
March 18, 2015/by mlong43

Kim Philby

High-ranking member of British intelligence spied for the Soviet Union.
March 18, 2015/by mlong43

Julius Rosenberg

American-born Soviet recruiter who obtained and passed military secrets to the Soviets.
March 18, 2015/by mlong43

John Walker

U.S. military communications specialist who ran a Soviet family spy ring.
March 18, 2015/by mlong43

Aldrich Ames

CIA counter-intelligence officer convicted of spying for the Soviet Union.
March 16, 2015/by mlong43