| HART, Paul ACTIVE | Secretary | 28 Sep 2015 | | | | Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE, England |
| BANSAL, Sunjit ACTIVE | Director | 31 Jul 2021 | | England | November 1981 | Watermill Theatre Limited, Bagnor, Newbury, RG20 8AE, England |
| BARBER, Caroline Elizabeth ACTIVE | Director | 04 Jun 2024 | | United Kingdom | December 1971 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| BREATHWICK, Katherine Juliet ACTIVE | Director | 31 Jul 2021 | | England | December 1971 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| GRINDROD, David William ACTIVE | Director | 28 Nov 2015 | | England | June 1952 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| HUMBY, Nicholas ACTIVE | Director | 28 Jan 2023 | | England | May 1957 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| JAHANGARD, Rosanna ACTIVE | Director | 28 Jan 2023 | | England | January 1987 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| LYNAS, Michael Cowper ACTIVE | Director | 04 Jun 2024 | | England | August 1957 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| POWELL, Danielle ACTIVE | Director | 28 Jan 2023 | | England | January 1985 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| TITLEY-RAWSON, Craig ACTIVE | Director | 28 Jan 2023 | | England | September 1971 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| WENTWORTH, Thomas James ACTIVE | Director | 31 Jul 2021 | | England | April 1989 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| WHITLUM-COOPER, Margaret Kathleen ACTIVE | Director | 24 Sep 2016 | | England | March 1950 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| WILLIAMSON, Howard Robert Mario ACTIVE | Director | 31 Jul 2021 | | England | April 1987 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| BEEBY, Hedda Rachel RESIGNED | Secretary | 25 Sep 2010 | 28 Sep 2015 | | | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| SARGANT, James Edmund RESIGNED | Secretary | | 21 Sep 2008 | | | Mill House Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| ADAMS, Daniel Thomas RESIGNED | Director | 21 Sep 2013 | 24 Sep 2016 | United Kingdom | June 1972 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| ARMSTRONG, Carole-Anne RESIGNED | Director | 23 Nov 2013 | 29 Sep 2018 | England | January 1949 | 2, Leys Gardens, Newbury, Berkshire, RG14 1HX, England |
| AYERS, Anthony RESIGNED | Director | 13 Dec 2003 | 25 Jul 2015 | United Kingdom | April 1947 | Chestnuts, Eastbury, Hungerford, Berkshire, RG17 7JN |
| BENNETT, Richard, Dr RESIGNED | Director | | 12 Oct 1991 | United Kingdom | April 1950 | Easton Meadow, Easton, Newbury, Berkshire, RG20 8EE |
| BERNARD, Ralph Mitchell RESIGNED | Director | 10 Sep 2005 | 19 Sep 2015 | England | February 1953 | Hydecross, Cross Lane, Marlborough, Wiltshire, SN8 1JZ |
| BLACKMORE, Alison Judith RESIGNED | Director | 17 Sep 2011 | 30 Sep 2017 | United Kingdom | May 1956 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| BLAND, Leslie Martin RESIGNED | Director | | 20 Nov 1996 | | March 1939 | 47 Common Close, Horsell, Woking, Surrey, GU21 4DB |
| BUNTING, Judith Ann RESIGNED | Director | 31 Jul 2021 | 28 Sep 2024 | England | November 1960 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| BURDETT, Roger Keith, Dr RESIGNED | Director | 30 Oct 2006 | 28 Nov 2009 | | September 1943 | Willowbank Newbury Road, Lambourn, Berkshire, RG17 7LN |
| BURNELL, Susan Margaret RESIGNED | Director | 29 Mar 1995 | 13 Sep 2003 | | June 1947 | 4 Church Way, Hungerford, Berkshire, RG17 0JX |
| CAISTOR, Richard Geoffrey RESIGNED | Director | | 16 Jan 1995 | United Kingdom | August 1945 | St. Petrock Barns, Trevengenow St. Ervan, Wadebridge, Cornwall, PL27 7SZ |
| CAMPBELL, Duncan Stewart RESIGNED | Director | 21 Apr 2001 | 17 Sep 2011 | England | December 1942 | 2 Olive Branch Cottage, Folly Road, Inkpen, Hungerford, Berkshire, RG17 9QB |
| CHADDER, Rebecca RESIGNED | Director | 02 Apr 2022 | 01 Feb 2025 | England | November 1997 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| CRICHTON-MILLER, Hugh Angus RESIGNED | Director | | 23 Feb 2002 | | August 1939 | 39 The Grange, Virginia Park, Virginia Water, Surrey, GU25 4ST |
| DANN, Peter RESIGNED | Director | 28 Nov 2009 | 21 Sep 2013 | Great Britain | December 1943 | Copse Hill, Fishers Lane, Cold Ash, Thatcham, Berkshire, RG18 9NG, United Kingdom |
| FARRANT, Colin Peter George RESIGNED | Director | 25 Jul 2015 | 24 Sep 2022 | England | February 1956 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| FENTON, Simon Elliott RESIGNED | Director | 14 May 2011 | 20 Sep 2014 | United Kingdom | November 1961 | 20, Kings Road West, Newbury, Berkshire, RG14 5XR, United Kingdom |
| FITZGERALD, Michael Frederick Clive RESIGNED | Director | 01 Mar 2003 | 13 Oct 2007 | | June 1936 | Middledown House, Buttermere, Marlborough, Wiltshire, SN8 3RQ |
| FOSTER, Susan Patricia RESIGNED | Director | 28 Nov 2015 | 24 Sep 2022 | England | October 1954 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| FOX, Clare Isobel Mcalpine RESIGNED | Director | 07 May 2005 | 20 Sep 2014 | England | March 1942 | 9 Plympton Road, London, NW6 7EH |
| GARTZKE, Karin Sophie Hedwig RESIGNED | Director | 17 May 2008 | 25 Nov 2017 | England | March 1953 | 18 Waldeck Road, London, W4 3NP |
| GENT, Kathleen Elizabeth RESIGNED | Director | 21 Sep 2013 | 21 Mar 2015 | United Kingdom | June 1962 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG10 8AE |
| GILMORE, David RESIGNED | Director | | 22 Jul 1994 | | December 1945 | 4 Wilton Crescent, Wimbledon, London, SW19 3QZ |
| GOLLINS, Crystel Ann RESIGNED | Director | | 30 Jun 1998 | | July 1919 | 12 Berkeley Road, Newbury, Berkshire, RG14 5JE |
| GRIFFIN, Patrick Charles Lake RESIGNED | Director | 18 Jul 2009 | 18 Sep 2021 | England | September 1948 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| HARRISON WALLACE, Anthony Penwick Monamey RESIGNED | Director | 12 Oct 1991 | 12 Sep 1995 | | January 1938 | Jasmine Cottage, Micheldever, Hampshire |
| HAYWARD, John Charles Frederick, Dr RESIGNED | Director | 11 Dec 2004 | 27 Sep 2008 | England | August 1941 | Winterbourne Wood Cottage, Winterbourne, Newbury, Berkshire, RG20 8AX |
| LUMLEY, Caroline Elizabeth RESIGNED | Director | 09 Dec 2000 | 18 Oct 2003 | | May 1952 | 27 Church Street, Hungerford, Berkshire, RG17 0JE |
| MCKENZIE, Andrew Greig RESIGNED | Director | 25 Nov 2017 | 03 Jun 2024 | England | December 1961 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| MUGGERIDGE, Sara Ann RESIGNED | Director | 29 Mar 1995 | 20 Nov 1996 | | September 1949 | 16 Fowey Close, London, E1 9JP |
| ORR, Samuel Edward RESIGNED | Director | 12 Oct 1991 | 19 Jul 1995 | | March 1941 | Grove Dene Oxford Road, Newbury, Berkshire, RG14 1XB |
| PARSONAGE, Simon Kenneth RESIGNED | Director | 25 Nov 2017 | 28 Sep 2024 | England | February 1959 | 10, Wyre Close, Chandler's Ford, Eastleigh, SO53 4QR, England |
| PRICE, Richard Shirvell RESIGNED | Director | 28 May 1998 | 13 Oct 2007 | England | August 1933 | Beech Knoll House, Aldbourne, Marlborough, Wiltshire, SN8 2EJ |
| PUXLEY, Deborah Anne RESIGNED | Director | 13 Sep 2003 | 25 Jul 2015 | United Kingdom | August 1957 | Welford Park, Welford, Newbury, Berkshire, RG20 8HU |
| REES, James Thomas RESIGNED | Director | 21 Nov 1998 | 15 Mar 2008 | England | February 1931 | Winterbourne Villa, Winterbourne, Newbury, Berkshire, RG20 8BA |
| ROSSITER, Thomas William RESIGNED | Director | 21 Mar 2015 | 18 Sep 2021 | England | February 1954 | The Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| RUSSELL, David Vernon RESIGNED | Director | 17 Feb 2001 | 13 Oct 2007 | England | July 1929 | Combe Manor, Combe, Hungerford, Berkshire, RG17 9EJ |
| SARGANT, James Edmund RESIGNED | Director | | 13 Sep 2003 | | August 1935 | Mill House Watermill Theatre, Bagnor, Newbury, Berkshire, RG20 8AE |
| SARGANT, Jill RESIGNED | Director | | 18 Dec 1992 | | April 1946 | The Mill House, Bagnor, Newbury, Berkshire, RG20 8AE |
| TAYLOR, Eleanor Frances RESIGNED | Director | 28 Nov 2009 | 20 Oct 2011 | Great Britain | August 1983 | The Tithe House, South Luffenham, Oakham, Rutland, LE15 8NX, Great Britain |
| TOOMER, Charles RESIGNED | Director | 21 Nov 1998 | 09 Dec 2000 | | August 1925 | The Axle Compass, Kintbury, Hungerford, Berkshire, RG17 9UE |
| TUCKEY, Andrew Marmaduke Lane RESIGNED | Director | 10 Sep 2005 | 21 Sep 2019 | England | August 1943 | 11 Horbury Mews, London, W11 3NL |
| WATKINSON, Sarah Louise RESIGNED | Director | 13 Sep 2003 | 28 Nov 2009 | | January 1968 | 7 High Street, Drayton, Abingdon, Oxfordshire, OX14 4JL |
| WEBB, Michael Charles RESIGNED | Director | 21 Nov 1998 | 01 Mar 2003 | United Kingdom | July 1952 | The Malthouse, Westbrook Boxford, Newbury, Berkshire, RG20 8PN |
| WELCH, Andrew Richard RESIGNED | Director | | 16 Jan 1995 | | February 1949 | 11 Vine Road, Barnes, London, SW13 0NE |
| WETHEY, John David RESIGNED | Director | | 17 Jan 1996 | England | April 1944 | 10 Broadlands Close, Calcot, Reading, Berkshire, RG31 7RP |
| WHITEHEAD, Reginald Deighton RESIGNED | Director | | 15 Mar 2008 | | December 1932 | Deacons Cottage, East Ilsley, Newbury, Berkshire, RG20 7LQ |
| WIDDOWSON, Ian Michael RESIGNED | Director | 29 Sep 2018 | 05 Aug 2023 | England | August 1961 | Watermill Theatre, Bagnor, Newbury, RG20 8AE, England |
| WILLIAMS, Graham John RESIGNED | Director | 29 Mar 1995 | 29 May 1996 | | July 1940 | 10 Buckingham Road, Newbury, Berkshire, RG14 6DJ |