| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 13-Oct-2012 | Samson Lee | Wales | 30-Nov-1992 | 19(317) |
| 08-Dec-2012 | Aled Davies | Wales | 19-Jul-1992 | 20(142) |
| 13-Oct-2012 | George North | Wales | 13-Apr-1992 | 20(183) |
| 13-Oct-2012 | Liam Williams | Wales | 09-Apr-1991 | 21(188) |
| 19-Jan-2013 | Adam Warren | Wales | 07-Mar-1991 | 21(319) |
| 13-Oct-2012 | Scott Williams | Wales | 10-Oct-1990 | 22(4) |
| 12-Jan-2013 | Kristian Phillips | Wales | 02-Sep-1990 | 22(133) |
| 13-Oct-2012 | Tavis Knoyle | Wales | 02-Jun-1990 | 22(134) |
| 08-Dec-2012 | Dan Newton | Wales | 30-Dec-1989 | 22(344) |
| 13-Oct-2012 | Jon Davies | Wales | 05-Apr-1988 | 24(191) |
| 20-Oct-2012 | Gareth Maule | Wales | 04-Dec-1987 | 24(321) |
| 08-Dec-2012 | Kieran Murphy | Wales | 19-Jan-1988 | 24(324) |
| 13-Oct-2012 | Aaron Shingler | Wales | 07-Aug-1987 | 25(68) |
| 08-Dec-2012 | Richard Kelly | Wales | 10-Sep-1987 | 25(90) |
| 13-Oct-2012 | George Earle | South Africa | 09-Jan-1987 | 25(278) |
| 13-Oct-2012 | Rhys Priestland | Wales | 07-Jan-1987 | 25(280) |
| 15-Dec-2012 | Ken Owens | Wales | 03-Jan-1987 | 25(347) |
| 20-Oct-2012 | Andrew Fenby | England | 24-Oct-1985 | 26(362) |
| 13-Oct-2012 | Robert McCusker | Wales | 12-Oct-1985 | 27(1) |
| 12-Jan-2013 | Jacobie Adriaanse | South Africa | 19-Jul-1985 | 27(177) |
| 15-Dec-2012 | Sean Hopkins | England | 23-Feb-1985 | 27(295) |
| 15-Dec-2012 | Aled Thomas | Wales | 02-Jan-1985 | 27(347) |
| 13-Oct-2012 | Morgan Stoddart | Wales | 23-Sep-1984 | 28(20) |
| 13-Oct-2012 | Johan Snyman | South Africa | 09-Jul-1984 | 28(96) |
| 15-Dec-2012 | Sione Timani | Tonga | 03-Sep-1984 | 28(103) |
| 08-Dec-2012 | Jon Edwards | Wales | 05-Jul-1984 | 28(156) |
| 13-Oct-2012 | Josh Turnbull | Wales | 12-Mar-1984 | 28(215) |
| 13-Oct-2012 | Philip John | Wales | 25-Apr-1981 | 31(171) |
| 13-Oct-2012 | Matthew Rees | Wales | 09-Dec-1980 | 31(308) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).