| Adam David Christopher Westley | Director | 20 Sept 2018 | 2 Sept 2019 | British | 57 years |
| Alan William Mcculloch | Director | 2 Sept 2019 | 30 Jul 2021 | British | 60 years |
| Andrew William Hodges | Director | 30 Jun 2016 | 12 Jul 2018 | British | 59 years |
| Anne Elizabeth Bassis | Director | 12 May 2011 | 18 Jan 2012 | American/british | 55 years |
| Gab Barbaro | Director | 18 Jan 2012 | 21 Oct 2013 | Italian | 55 years |
| Gearoid Martin Lane | Director | 12 May 2011 | 30 Oct 2012 | Irish | 62 years |
| Justine Michelle Campbell | Director | 12 Jul 2018 | 20 Sept 2018 | British | 56 years |
| Kenneth Michael Anidjar Main | Director | 9 Feb 2012 | 21 Oct 2013 | British | 51 years |
| Nevin John Truesdale | Director | 12 May 2011 | 9 Feb 2012 | British | 52 years |
| Nicola Carroll | Director | 21 Oct 2013 | 30 Jun 2016 | British | 67 years |