Question: Which member of the comedy team "The League of Gentlemen", wrote the episode of "Doctor Who" that is titled "Cold War"?

Context articles: Eileen Welsome
Atomsk (novel)
A Local Book for Local People
19th Guards Mechanized Brigade (Belarus)
Who Paid the Piper?
Cold War (Doctor Who)
In the Navy (film)
Keep 'Em Flying
D. F. Fleming
Mark Gatiss

Eileen Welsome (born March 12, 1951) is an American journalist.
 She received a Pulitzer Prize for National Reporting in 1994 while a reporter for "The Albuquerque Tribune" for a 3-part story titled "The Plutonium Experiment" published beginning on November 15, 1993.
 She was awarded the prize for her articles about the government's human radiation experiments conducted on unwilling and unknowing Americans during the Cold War.
 Welsome also has been honored by the National Headliners Association and the Associated Press and has received many awards for her writing.
 In 1999, Welsome wrote the book "The Plutonium Files: America's Secret Medical Experiments in the Cold War".
 In 2000, Welsome received the PEN/Martha Albrand Award for First Nonfiction for "The Plutonium Files".
Atomsk, first published in 1949, is a Cold War spy novel by "Carmichael Smith", one of several pseudonyms used by Paul Linebarger, who wrote fiction most prolifically as Cordwainer Smith.
 Written two years after Winston Churchill's Sinews of Peace address, "Atomsk" is the first espionage novel of the Cold War, inaugurating a genre exemplified by such writers as Ian Fleming and John Le Carré.
A Local Book For Local People is a book by the British comedy team The League of Gentlemen.
 It is similar to comedy books by Monty Python and The Goodies in that it is a collection of loose material collected in a scrap book format.
 The material is connected by Tubbs, who has found the various snippets on the moors.
The 19th Guards Mechanized Brigade is a formation of the Armed Forces of Belarus based in Zaslonovo (), a few kilometers east of Lepiel.
 The 19th Guards Brigade traces its history back to the 1942 formation of the 2nd Guards Mechanized Corps of the Soviet Army during World War II.
 Subsequent designations during the Cold War included "2nd Guards Mechanized Division" and "19th Guards Tank Division".
 Following the Cold War, the 19th Guards Tank Division was relocated to Belarus and became part of their armed forces in 1992.
 Thereafter, the unit was reduced to a personnel and equipment cadre unit and titled the "19th Guards Base for Storage of Weapons and Equipment" before being upgraded to a mechanized brigade in 2008.
Who Paid the Piper?
 The CIA and the Cultural Cold War (U.S. title The Cultural Cold War: The CIA and the World of Arts and Letters) is a 1999 book by Frances Stonor Saunders.
 The book discusses the mid-20th century Central Intelligence Agency efforts to infiltrate and co-opt artistic movements in order to combat political influence from the Soviet Union and expand American political influence, with much funding going through the Congress for Cultural Freedom.
 In "Dissent" Jeffrey C. Isaac wrote that the book is a "widely discussed retrospective on post-Second World War liberalism that raises important questions about the relationships between intellectuals and political power."
"Cold War" is the eighth episode of the seventh series of the British science-fiction television drama "Doctor Who".
 It first aired on BBC One on 13 April 2013, and was written by Mark Gatiss and directed by Douglas Mackinnon.
In the Navy is a 1941 film starring the comedy team of Abbott and Costello.
 It was the second service comedy based on the peacetime draft of 1940.
 The comedy team appeared in two other service comedies in 1941, before the United States entered the war: "Buck Privates" released in January and "Keep 'Em Flying" released in November.
Keep 'Em Flying is a 1941 film starring the comedy team of Abbott and Costello.
 The film was the third service comedy based on the peacetime draft of 1940.
 The comedy team had appeared in two previous service comedies in 1941, before the United States entered the war: "Buck Privates", released in January, and "In the Navy", released in May.
 The film's title is taken from the official motto of the U.S. Army Air Corps, some five months after it had been reformed into the USAAF.
Denna Frank Fleming (1893–1980) was an American revisionist historian and author who wrote "The Cold War and Its Origins", a seminal work on the Cold War.
 Joseph Stromberg called "The Cold War and Its Origins" "very detailed and, therefore, useful on the critical period, 1945-1947, before Stalin made his final decision to impose one-party Communist regimes throughout Eastern Europe" but that "Fleming's account suffers from his neo-Wilsonian preconceptions and his view that Stalin was significantly better than the defeated Hitler."
Mark Gatiss ( ; born 17 October 1966) is an English actor, comedian, screenwriter and novelist.
 His work includes writing for and acting in the TV series "Doctor Who" and "Sherlock".
 Together with Reece Shearsmith, Steve Pemberton and Jeremy Dyson, he is a member of the comedy team "The League of Gentlemen".
 He is also known for his role as Tycho Nestoris in the HBO series "Game of Thrones".