Question: The character Ben Whishaw played is the head of what kind of division of the British Secret Service?

Context articles: Sidney Reilly
Abraham Bolden
Director of the United States Secret Service
Q (James Bond)
No. 1 of the Secret Service
The Secret Service
Ernst Stavro Blofeld
Detlef Bothe (actor)
Miss Moneypenny
Colonel Sun

Sidney George Reilly MC (  1873 –  1925 ), commonly known as the "Ace of Spies", was a secret agent of the British Secret Service Bureau, the precursor to the modern British Secret Intelligence Service (MI6/SIS).
 He is alleged to have spied for at least four different powers.
Abraham W. Bolden (born January 19, 1935) is an American former United States Secret Service agent - the first African-American Secret Service agent assigned to the Presidential Protective Division, appointed by John F. Kennedy in 1961.
 Bolden was fired from the Secret Service after he was charged in 1964 with accepting a bribe in relation to a counterfeiting case he was involved with.
 He was ultimately sentenced to six years in prison.
The Director of the United States Secret Service is the head of the U.S. Secret Service, and responsible for the day-to-day operations.
 The Secret Service is concerned with the prevention and investigation of counterfeiting of U.S. currency and U.S. treasury securities, and the protection of current and former national leaders and their families, such as the President and Vice President, and foreign dignitaries.
Q is a fictional character in the James Bond films and film novelisations.
 Q (standing for Quartermaster as well as a reference to the deceptive Q-ships) is a job title, unlike M, which is a cypher for the character's name.
 He is the head of Q Branch (or later Q Division), the fictional research and development division of the British Secret Service.
No. 1 of the Secret Service is a 1977 imitation James Bond film starring Nicky Henson as British secret agent Charles Bind.
 It was directed and written by Lindsay Shonteff and produced by his wife Elizabeth Gray.
 The film had the working title of 008 of the Secret Service.
 It was released on VHS under the title Her Majesty’s Top Gun.
The Secret Service is a British children's espionage television series, filmed by Century 21 for ITC Entertainment and broadcast on Associated Television, Granada Television and Southern Television in 1969.
 It was created by Gerry and Sylvia Anderson, and produced by David Lane and Reg Hill.
 It was the eighth and last Century 21 production to feature—in a manner similar to "Thunderbirds" and other earlier series—marionette puppet characters as part of a filming technique known as "Supermarionation".
 Under the direction of Gerry Anderson, who wanted to increase the realism of the Supermarionation format, "The Secret Service" incorporates footage of live actors for long-distance shots.
 Following "The Secret Service", Anderson did not work with puppets again until the 1980s, when he produced "Terrahawks" in "Supermacromation".
Ernst Stavro Blofeld is a fictional character and a supervillain from the James Bond series of novels and films, created by Ian Fleming.
 A criminal with aspirations of world domination, he is the archenemy of the British Secret Service agent James Bond.
 Blofeld is head of the global criminal organisation SPECTRE and is commonly referred to as Number 1, an official numerical position given to members of SPECTRE.
 The character was originally written by Fleming as a physically massive and powerfully built man, standing around 6 ft and weighing 21.6 stone (about 300 lb ), who had become flabby with a huge belly.
Detlef Bothe (born 24 July 1965) is a German actor, screenwriter, film director and producer.
 Since the early 1990s, he has appeared in numerous film and television productions, both German and international.
 In 2015, he appeared in the "James Bond" film Spectre as a henchman, in a scene where he and Q (Ben Whishaw) are seen riding a cable car in the Austrian Alps.
Miss Moneypenny, later assigned the first names of Eve or Jane, is a fictional character in the James Bond novels and films.
 She is secretary to M, who is Bond's superior officer and head of the British Secret Service (MI6).
 Although she has a small part in most of the films, it is always highlighted by the underscored romantic tension between her and Bond (something that is virtually non-existent in Ian Fleming's novels, though is somewhat more apparent in the Bond novels by John Gardner and Raymond Benson).
 On that note, she is not always considered to be a Bond girl, having never had anything more than a professional relationship with Bond, to her dismay.
Colonel Sun is a novel by Kingsley Amis published by Jonathan Cape on 28 March 1968 under the pseudonym "Robert Markham".
 "Colonel Sun" is the first James Bond continuation novel published after Ian Fleming's 1964 death.
 Before writing the novel, Amis wrote two other Bond related works, the literary study "The James Bond Dossier" and the humorous "The Book of Bond".
 "Colonel Sun" centres on the fictional British Secret Service operative James Bond and his mission to track down the kidnappers of M, his superior at the Secret Service.
 During the mission he discovers a communist Chinese plot to cause an international incident.
 Bond, assisted by a Greek spy working for the Russians, finds M on a small Aegean island, rescues him and kills the two main plotters: Colonel Sun Liang-tan and a former Nazi commander, Von Richter.