| Christopher Michael Leslie | 13 June 2003 | |
| David Geoffrey Nigel Filkin, Lord Filkin | 13 June 2003 | 9 September 2004 |
| David Lindon Lammy | 13 June 2003 | 9 May 2005 |
| Catherine Margaret Ashton, Baroness Ashton of Upholland | 9 September 2004 | 28 June 2007 |
| Mark James Harper | 11 May 2010 | 4 September 2012 |