| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 28-Oct-2011 | Matthew Morgan | Wales | 23-Apr-1992 | 19(187) |
| 28-Oct-2011 | Eli Walker | Wales | 28-Mar-1992 | 19(213) |
| 02-Mar-2012 | Ross Jones | Wales | 11-Jan-1992 | 20(51) |
| 02-Sep-2011 | Hanno Dirksen | South Africa | 31-Mar-1991 | 20(155) |
| 02-Sep-2011 | Kristian Phillips | Wales | 02-Sep-1990 | 20(365) |
| 10-Feb-2012 | Sam Lewis | Wales | 11-Nov-1990 | 21(91) |
| 26-Nov-2011 | James King | Wales | 24-Jul-1990 | 21(125) |
| 02-Sep-2011 | Ashley Beck | Wales | 15-Apr-1990 | 21(140) |
| 10-Feb-2012 | Joe Rees | Wales | 31-Aug-1990 | 21(163) |
| 02-Sep-2011 | Daniel Biggar | Wales | 16-Oct-1989 | 21(321) |
| 02-Sep-2011 | Justin Tipuric | Wales | 06-Aug-1989 | 22(27) |
| 02-Sep-2011 | Rhys Webb | Wales | 09-Dec-1988 | 22(267) |
| 01-Jan-2012 | Ryan Bevington | Wales | 09-Dec-1988 | 23(22) |
| 24-Feb-2012 | Scott Baldwin | Wales | 12-Jul-1988 | 23(226) |
| 24-Feb-2012 | Stefan Watermeyer | South Africa | 03-Jun-1988 | 23(265) |
| 17-Sep-2011 | Tom Isaacs | Wales | 18-Feb-1987 | 24(211) |
| 25-Sep-2011 | Aaron Jarvis | Wales | 20-May-1986 | 25(128) |
| 02-Sep-2011 | Tom Smith | Wales | 14-Dec-1985 | 25(262) |
| 26-Nov-2011 | Chauncey O'Toole | Canada | 22-Feb-1986 | 25(277) |
| 02-Sep-2011 | Andrew Bishop | Wales | 07-Aug-1985 | 26(26) |
| 05-Nov-2011 | Alan Wyn Jones | Wales | 19-Sep-1985 | 26(47) |
| 02-Sep-2011 | Ian Evans | Wales | 04-Oct-1984 | 26(333) |
| 02-Sep-2011 | Richard Fussell | Wales | 12-Apr-1984 | 27(142) |
| 02-Sep-2011 | Cai Griffiths | Wales | 05-Jan-1984 | 27(240) |
| 28-Oct-2011 | Tommy Bowe | Ireland | 22-Feb-1984 | 27(248) |
| 25-Sep-2011 | Richard Hibbard | Wales | 13-Dec-1983 | 27(286) |
| 06-Jan-2012 | Huw Bennett | Wales | 11-Jun-1983 | 28(209) |
| 02-Sep-2011 | Jonathan Thomas | Wales | 27-Dec-1982 | 28(249) |
| 25-Sep-2011 | James Goode | Wales | 05-Sep-1982 | 29(20) |
| 05-Nov-2011 | Kahn Fotuali'i | Samoa | 22-May-1982 | 29(167) |
| 26-Dec-2011 | Paul James | Wales | 13-May-1982 | 29(227) |
| 25-Sep-2011 | Barry Davies | Wales | 05-Mar-1981 | 30(204) |
| 26-Dec-2011 | Ryan Jones | Wales | 13-Mar-1981 | 30(288) |
| 26-Dec-2011 | Adam Jones | Wales | 08-Mar-1981 | 30(293) |
| 08-Oct-2011 | Joe Bearman | England | 28-Feb-1979 | 32(222) |
| 01-Jan-2012 | George Stowers | Fiji | 14-Feb-1979 | 32(321) |
| 02-Sep-2011 | Duncan Jones | Wales | 18-Sep-1978 | 32(349) |
| 17-Sep-2011 | Sonny Parker | Wales | 27-Aug-1977 | 34(21) |
| 02-Sep-2011 | Ian Gough | Wales | 10-Nov-1976 | 34(296) |
| 26-Dec-2011 | Shane Williams | Wales | 26-Feb-1977 | 34(303) |
| 02-Sep-2011 | Mefin Davies | Wales | 02-Sep-1972 | 38(365) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).