See Castle Street East 1 to 15 &c in London Addresses dataset
No 5 Castle St East Land Tax 1784 Charles Spragg / SunFire 1781 Charles Spragg gent, 5 Castle St, Newman St
The only Charles Spragg I found was a comedian (i.e. actor) who fathered an illegitimate child in Manchester, date not given but between 1773 and 1794. (Thomas Battye's Red Basil Book). Not in Highfill, Burnim & Langhans Dictionary of Actors etc.
See Castle Street East 1 to 15 &c in London Addresses dataset
No 6 Castle St East Land Tax 1797-1798 Mary Morgan / Sun Fire 1797 Mary Morgan 6 Castle St spinster
See Castle Street East 1 to 15 &c in London Addresses dataset
No 11 Berners Street Land Tax 1780 Mrs Sirs 1782-1784 Elizabeth Brown 1785-1790 data missing 1791-1807 John Diolott Harris's List 1793 Mrs Chish-lme
See Castle Street East 1 to 15 &c in London Addresses dataset
No 6 Castle St East Land Tax 1784-1792 Edward Brown / Sun Fire 1794 Catherine Brown widow 4 & 6 Castle St East
See Castle Street East 1 to 15 &c in London Addresses dataset.
Castle St East Land Tax No 4 1791-1798 Catherine Brown No 6 1796 Catherine Brown for tenants No 7 1791-1799 Catherine Brown (for tenants 1796 Catherine Edmonds for tenants 1797) / Sun Fire 1790 Catherine Brown widow Nos 4 & 7 / Sun Fire 1794 Catherine Brown widow Nos 4 & 7
See Castle Street East 1 to 15 &c in London Addresses dataset
No 4 Castle St East Land Tax 1781-1784 Sarah Williamson
(Possibly) / Charles Fellows of St Martins i t Fields bach = 1.12.1787 St Marylebone by lic Sarah Williamson (her mark) wid otp / Land Tax 1792 King St East (nr Baker St) St Marylebone Sarah Williamson / Sarah Williamson (adult) bur 4 or 6.1.1797 St Marylebone / SunFire 1807 sarah Williamson widow 36 Castle St Holborn / Sarah Paye Williamson bapt St Marylebone 5.9.1783 of Thomas & Elizabeth
See Castle Street East 1 to 15 & 11 Berners St in London Addresses dataset
No 2 Castle St East Land Tax 1801 Shrimton / No 62 Berners St Land Tax from 1794 William Shrimpton Esq (62 Berners St was on NE corner of Castle St East)
See Castle Street East 1 to 15 & 11 Berners Street in London Addresses dataset
No 3 Castle Street East Land Tax 1784-1800 William Evans
Will PCC 1800 of William Evans of 3 Little Castle St, bricklayer, sister Sarah Little, wife Mary to whom he owed £43, occupied piece of ground at back of Castle St Mews dated 24.10.1800 proved 13.11.1800 / Wm Evans bur 30.10.1800 St Marylebone / William Evans bach otp = 9.5.1794 St Marylebone by banns Mary Morris (her mark) wid otp wit Susannah Roberts
See Castle Street East 1 to 15 & 11 Berners Street in London Addresses dataset
No 2 Castle St East / SunFire 1794 William Busby hatter 399 Strand (Cook gent) / Land Tax 1791-1800 Thomas Cook
Will PCC 13.2.1822 William Busby hatter of New Bond St proved by widow Elizabeth still owned this house in Castle St East
See Castle Street East 1 to 15 & 11 Berners Street (in London Addresses dataset)
Alexander Robertson Land Tax 1780-1784 2 Castle Street East / SunFire 1794 Alexander Robertson, 16 Castle Street, Oxford Market, tailor