It would appear that throughout most of the period of the academy (1807-1835) there was an annual sermon. For most years there was, one guesses, an English sermon and a Welsh sermon (*). Below is a list which gives the names of these preachers. The original list is found here along with annual financial accounts. Unfortunately the list of preachers does not match the list of dates in the first column in any obvious way. We have attempted to make as best a match as we can and have added information about each individual preacher as far as we can and other relevant information.
1808
Thomas Roberts 1780-1841 Bristol (formerly of Brixham)
1809
David Evans 1744-1821 Maesyberllan, Breconshire
1810 (May 2)
Dr. John Ryland 1801-1888
*Titus Lewis 1773-1811 Carmarthen
1811
*D. Evans 1744-1821 Maesyberllan, Breconshire
Henry Page 1781-1833 Bristol (Worcester later)
1812
*D. Richards
John Holloway d 1831 Cardington, Cotton End (formerly Counterslip, Bristol)
1813
John Edmonds 1750-1823 Guilsborough, Northants
*Joseph Jenkins 1743-1819 Wrexham and London pastor and writer
1814
Lawrence Butterworth 1740-1828 Evesham
*Jonathan Davies Pembrokeshire (From Capel Iwan, he was Thomas's first student. He went on to be an evangelist in Pembrokeshire).
Thomas Roberts 1780-1841 Bristol (formerly of Brixham)
1809
David Evans 1744-1821 Maesyberllan, Breconshire
1810 (May 2)
Dr. John Ryland 1801-1888
*Titus Lewis 1773-1811 Carmarthen
1811
*D. Evans 1744-1821 Maesyberllan, Breconshire
Henry Page 1781-1833 Bristol (Worcester later)
1812
*D. Richards
John Holloway d 1831 Cardington, Cotton End (formerly Counterslip, Bristol)
1813
John Edmonds 1750-1823 Guilsborough, Northants
*Joseph Jenkins 1743-1819 Wrexham and London pastor and writer
1814
Lawrence Butterworth 1740-1828 Evesham
*Jonathan Davies Pembrokeshire (From Capel Iwan, he was Thomas's first student. He went on to be an evangelist in Pembrokeshire).
1815
*Benjamin Davies d 1816 Molleston, Pembrokeshire
Isaiah Birt 1758-1837 Plymouth
1816
*Thomas Evans 1792-1867 Shaftesbury, Dorset
C(aleb?) Evans 1823-1891??
J(ohn?). Rowland
1817
*John James 1777-1848 Pontrhydyrun (Later Bridgened)
J(oseph?) Harris (Gomer) 1773-1825 Hymn writer and pastor in Pembrokeshire
1818
John Herring 1789-1832 Cardigan
H. Williams
1819
Joseph Ivimey 1773-1834 Holborn
*James Lewis 1761-1837 Llanwenarth
1820
J. Watkins
J. Morgan
1821
Francis Hiley 1780-1860 Govilon/Llawenarth
W. Jones
1822
John Philip Davies 1786-1832 Tredegar
J. Thomas
1823
Thomas Steffe Crisp 1788-1868 Bristol
*David Davies Evans Pontrhydyrun 1787-1858 (at Carmarthen earlier, Bridgend later)
1824
John Michael Llanfachreth, Anglesey
J(ohn?) Jones d c 1844 from Abergavenny and later at Lydney and Blakemey
1825
J(oseph?) Price d 1851 After serving as assistant to J Hinton at Oxford he served in Alcester (1813-1842) then Middleton Cheney
J(ames?) Edwards 1800-1887 See here
1826
Thomas Morgan 1776-1857 Birmingham
John Evans d 1861 Brecon
1827
Thomas Winter 1790-1863 Counterslip, Bristol
1828 (Sep 3)
Isaac Mann 1785-1831 Southwark (formerly of Shipley) (Acts 18:26)
1829 (Sep 2)
John Fry d 1851 Coleford (2 Tim 2:15)
1830 (Sep 30)
William Jones 1762-1846 Cardiff
1831-1835
Unknown