WThe Director General of the Security Service is the head of the Security Service, the United Kingdom's internal counter-intelligence and security agency. The Director General is assisted by a Deputy Director General and an Assistant Director General, and reports to the Home Secretary, although the Security Service is not formally part of the Home Office.
WSir Arthur Antony Duff was a senior British diplomat and Director General of MI5.
WJonathan Douglas Evans, Baron Evans of Weardale, KCB, DL is a British life peer who formerly served as the Director General of the British Security Service, the United Kingdom's domestic security and counter-intelligence service. He took over the role on the retirement of his predecessor Dame Eliza Manningham-Buller on 21 April 2007. Evans was succeeded by Andrew Parker on 22 April 2013.
WSir Michael Bowen Hanley KCB was Director General (DG) of MI5, the United Kingdom's internal security service, from 1972 to 1978.
WElizabeth Lydia Manningham-Buller, Baroness Manningham-Buller, is a retired British intelligence officer. She was Director General of MI5, the British internal Security Service, from October 2002 until her retirement on 20 April 2007, aged 58. She became a crossbench life peer on 18 April 2008. She is Co-president of Chatham House, alongside Sir John Major and Alistair Darling, Lord Darling of Roulanish.
WKenneth Douglas McCallum is the current Director-General of MI5.
WDame Stella Rimington is a British author and former Director General of MI5, a position she held from 1992 to 1996. She was the first female DG of MI5, and the first DG whose name was publicised on appointment. In 1993, Rimington became the first DG of MI5 to pose openly for cameras at the launch of a brochure outlining the organisation's activities.
WSir Dick Goldsmith White, was a British intelligence officer. He was Director General (DG) of MI5 from 1953 to 1956, and Head of the Secret Intelligence Service (MI6) from 1956 to 1968.