| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 03-Nov-2012 | Jamie Elliott | England | 31-Aug-1992 | 20(64) |
| 09-Feb-2013 | Ben Nutley | England | 07-Apr-1992 | 20(308) |
| 06-Oct-2012 | Michael Haywood | England | 10-Nov-1991 | 20(331) |
| 30-Dec-2012 | Alex Waller | England | 14-Feb-1990 | 22(320) |
| 03-Nov-2012 | Calum Clark | England | 10-Jun-1989 | 23(146) |
| 01-Sep-2012 | Ken Pisi | Samoa | 24-Feb-1989 | 23(189) |
| 22-Sep-2012 | Courtney Lawes | England | 23-Feb-1989 | 23(211) |
| 01-Sep-2012 | Gerrit-Jan van Velze | South Africa | 21-Feb-1988 | 24(193) |
| 14-Sep-2012 | Luther Burrell | England | 06-Dec-1987 | 24(283) |
| 01-Sep-2012 | Dominic Waldouck | England | 26-Sep-1987 | 24(341) |
| 01-Sep-2012 | Vasily Artemyev | Russia | 24-Jul-1987 | 25(40) |
| 14-Sep-2012 | Tom Mercey | England | 15-Jun-1987 | 25(92) |
| 06-Oct-2012 | Mark Sorenson | New Zealand | 12-Feb-1987 | 25(237) |
| 01-Sep-2012 | Tom Wood | England | 03-Nov-1986 | 25(303) |
| 01-Sep-2012 | George Pisi | Samoa | 29-Jun-1986 | 26(65) |
| 01-Sep-2012 | Ryan Lamb | England | 18-May-1986 | 26(107) |
| 03-Nov-2012 | Martin Roberts | Wales | 06-Jun-1986 | 26(151) |
| 01-Sep-2012 | Dylan Hartley | England | 24-Mar-1986 | 26(162) |
| 01-Sep-2012 | Ben Foden | England | 22-Jul-1985 | 27(41) |
| 22-Sep-2012 | Paul Doran-Jones | England | 02-May-1985 | 27(143) |
| 01-Sep-2012 | Lee Dickson | England | 29-Mar-1985 | 27(156) |
| 01-Sep-2012 | Samu Manoa | United States | 05-Mar-1985 | 27(180) |
| 01-Sep-2012 | Brian Mujati | South Africa | 28-Sep-1984 | 27(338) |
| 14-Sep-2012 | Stephen Myler | England | 21-Jul-1984 | 28(55) |
| 01-Sep-2012 | Christian Day | England | 24-Jun-1983 | 29(70) |
| 22-Sep-2012 | James Wilson | New Zealand | 07-Jul-1983 | 29(78) |
| 01-Sep-2012 | Soane Tonga'uiha | Tonga | 21-Jan-1982 | 30(224) |
| 01-Sep-2012 | Phil Dowson | England | 01-Oct-1981 | 30(336) |
| 14-Sep-2012 | Rhys Oakley | Wales | 16-Sep-1980 | 31(363) |
| 03-Nov-2012 | Tom May | England | 05-Feb-1979 | 33(272) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).