Demiurge

In some human belief systems, a deity (or sometimes the deity) responsible for physical creation. (See the Wikipedia entry on the term for a much fuller discussion of the term.)

The term is also sometimes used to describe a creator-power working under the auspices of another greater power responsible for the entirety of the universe. This is the way in which the Powers that Be describe their role in the YW novels: especially the one of them so far who has routinely been the most outspoken or forthcoming, the One's Champion or Michael Power. (Some light has also been shed on this subject by the Power which inhabited the form of Biddy O Dalaigh in AWAB.) (HW et seq.)