| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 08-Sep-2012 | Matthew Morgan | Wales | 23-Apr-1992 | 20(138) |
| 05-Oct-2012 | Eli Walker | Wales | 28-Mar-1992 | 20(191) |
| 08-Feb-2013 | Tom Habberfield | Wales | 19-May-1992 | 20(265) |
| 30-Nov-2012 | Ross Jones | Wales | 11-Jan-1992 | 20(324) |
| 14-Sep-2012 | Tom Grabham | Wales | 20-Jun-1991 | 21(87) |
| 31-Aug-2012 | Hanno Dirksen | South Africa | 31-Mar-1991 | 21(154) |
| 04-Nov-2012 | Lloyd Peers | Wales | 02-Feb-1991 | 21(276) |
| 31-Aug-2012 | Sam Lewis | Wales | 11-Nov-1990 | 21(294) |
| 08-Feb-2013 | Ben John | Wales | 28-Feb-1991 | 21(346) |
| 31-Aug-2012 | James King | Wales | 24-Jul-1990 | 22(39) |
| 04-Nov-2012 | Joe Rees | Wales | 31-Aug-1990 | 22(66) |
| 31-Aug-2012 | Ashley Beck | Wales | 15-Apr-1990 | 22(139) |
| 31-Aug-2012 | Daniel Biggar | Wales | 16-Oct-1989 | 22(320) |
| 08-Feb-2013 | Morgan Allen | Wales | 12-Mar-1990 | 22(334) |
| 08-Sep-2012 | Justin Tipuric | Wales | 06-Aug-1989 | 23(33) |
| 31-Aug-2012 | Ryan Bevington | Wales | 09-Dec-1988 | 23(265) |
| 08-Sep-2012 | Rhys Webb | Wales | 09-Dec-1988 | 23(273) |
| 05-Oct-2012 | Scott Baldwin | Wales | 12-Jul-1988 | 24(85) |
| 31-Aug-2012 | Tom Isaacs | Wales | 18-Feb-1987 | 25(195) |
| 31-Aug-2012 | Aaron Jarvis | Wales | 20-May-1986 | 26(104) |
| 14-Sep-2012 | Jonathan Spratt | Wales | 28-Apr-1986 | 26(140) |
| 31-Aug-2012 | Alan Wyn Jones | Wales | 19-Sep-1985 | 26(347) |
| 31-Aug-2012 | Andrew Bishop | Wales | 07-Aug-1985 | 27(24) |
| 04-Nov-2012 | Matt Dwyer | Wales | 18-Jan-1985 | 27(290) |
| 31-Aug-2012 | Ian Evans | Wales | 04-Oct-1984 | 27(331) |
| 31-Aug-2012 | Richard Fussell | Wales | 12-Apr-1984 | 28(141) |
| 31-Aug-2012 | Richard Hibbard | Wales | 13-Dec-1983 | 28(262) |
| 30-Nov-2012 | Cai Griffiths | Wales | 05-Jan-1984 | 28(330) |
| 31-Aug-2012 | Jonathan Thomas | Wales | 27-Dec-1982 | 29(248) |
| 31-Aug-2012 | Kahn Fotuali'i | Samoa | 22-May-1982 | 30(102) |
| 23-Nov-2012 | Owen Williams | Wales | 03-Feb-1982 | 30(294) |
| 29-Sep-2012 | Ryan Jones | Wales | 13-Mar-1981 | 31(200) |
| 05-Oct-2012 | Adam Jones | Wales | 08-Mar-1981 | 31(212) |
| 14-Sep-2012 | Joe Bearman | England | 28-Feb-1979 | 33(199) |
| 14-Sep-2012 | George Stowers | Fiji | 14-Feb-1979 | 33(213) |
| 14-Sep-2012 | Duncan Jones | Wales | 18-Sep-1978 | 33(362) |
| 08-Sep-2012 | Ian Gough | Wales | 10-Nov-1976 | 35(303) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).