Lee Harvey Oswald, from Wikipedia. On "Musings of a Cigarette Smoking Man", he is played by Morgan Weisser
Lee Harvey Oswald (October 18, 1939 – November 24, 1963) was, according to five US government investigations, the assassin of US President John F. Kennedy. However, one episode implies that Oswald was innocent, a scapegoat used so that the real assassin, the Cigarette Smoking Man, would go unseen. Oswald was shot by Jack Ruby while leaving a police station on national television two days after Kennedy's death.
The hacker Lois Runtz always uses anagrams of the name 'Lee Harvery Oswald' when providing an alias. The most common being 'Yves Adele Harlow'.