Ken McCallum: Director General, The Security Service
Ken McCallum is Director General, The Security Service (The Security Service, United Kingdom), according to GOV.UK.
Posts held
- Director General, The Security Service, The Security Service, United Kingdom. Part of level 6: National government.
Source: Director General of the Security Service (MI5) Ken McCallum - GOV.UK, read 4 November 2026 (saved copy). The page says: “Ken McCallum Contents Biography Role Previous roles Biography Ken McCallum is the Director General of the Security Service (also known as MI5).”
Where Ken McCallum sits in the ladder of power
As Director General, The Security Service, Ken McCallum works at level 6: National government, below the national government of United Kingdom. The full ladder of power over The Security Service is on its page.
Above that, United Kingdom is a member of:
- NATO level 8
- G7 level 10
- G20 level 10
- United Nations (General Assembly and Security Council) level 8
- International Monetary Fund level 9
- World Bank Group level 9
Who else holds power in United Kingdom
- King Charles III King, United Kingdom
- Andrew Burnham Prime Minister and First Lord of the Treasury of the United Kingdom of Great Britain and Northern Ireland, United Kingdom
- Ed Miliband Foreign Secretary of the United Kingdom of Great Britain and Northern Ireland, United Kingdom
Where these facts come from
Every post above is copied from an official record, linked beside it with the date it was read. The UN Protocol and Liaison Service publishes the list governments give it of their head of state, head of government and foreign minister. Names are as the source prints them, without honorifics. How this site is made.
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