| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 06-Aug-2011 | George North | Wales | 13-Apr-1992 | 19(114) |
| 06-Aug-2011 | Toby Faletau | Wales | 12-Nov-1990 | 20(267) |
| 03-Dec-2011 | Scott Williams | Wales | 10-Oct-1990 | 21(54) |
| 20-Aug-2011 | Tavis Knoyle | Wales | 02-Jun-1990 | 21(79) |
| 03-Dec-2011 | Lloyd Williams | Wales | 30-Nov-1989 | 22(3) |
| 16-Jun-2012 | Ashley Beck | Wales | 15-Apr-1990 | 22(63) |
| 09-Jun-2012 | Alex Cuthbert | Wales | 05-Apr-1990 | 22(66) |
| 03-Dec-2011 | Scott Andrews | Wales | 01-Aug-1989 | 22(124) |
| 02-Jun-2012 | Daniel Biggar | Wales | 16-Oct-1989 | 22(230) |
| 20-Aug-2011 | Leigh Halfpenny | Wales | 22-Dec-1988 | 22(241) |
| 02-Jun-2012 | Justin Tipuric | Wales | 06-Aug-1989 | 22(301) |
| 06-Aug-2011 | Sam Warburton | Wales | 05-Oct-1988 | 22(305) |
| 06-Aug-2011 | Jon Davies | Wales | 05-Apr-1988 | 23(122) |
| 06-Aug-2011 | Dan Lydiatt | Wales | 18-Dec-1987 | 23(231) |
| 06-Aug-2011 | Rhys Priestland | Wales | 07-Jan-1987 | 24(211) |
| 06-Aug-2011 | Jamie Roberts | Wales | 08-Nov-1986 | 24(271) |
| 06-Aug-2011 | Craig Mitchell | Wales | 03-May-1986 | 25(95) |
| 09-Jun-2012 | Ken Owens | Wales | 03-Jan-1987 | 25(158) |
| 02-Jun-2012 | Rhys Gill | Wales | 30-Oct-1986 | 25(216) |
| 02-Jun-2012 | Aled Brew | Wales | 09-Aug-1986 | 25(298) |
| 06-Aug-2011 | Alan Wyn Jones | Wales | 19-Sep-1985 | 25(321) |
| 13-Aug-2011 | James Hook | Wales | 27-Jun-1985 | 26(47) |
| 06-Aug-2011 | Bradley Davies | Wales | 09-Jan-1985 | 26(209) |
| 13-Aug-2011 | Lloyd Burns | Wales | 09-Dec-1984 | 26(247) |
| 02-Jun-2012 | Andrew Bishop | Wales | 07-Aug-1985 | 26(300) |
| 03-Dec-2011 | Ian Evans | Wales | 04-Oct-1984 | 27(59) |
| 20-Aug-2011 | Richard Hibbard | Wales | 13-Dec-1983 | 27(250) |
| 06-Aug-2011 | Huw Bennett | Wales | 11-Jun-1983 | 28(56) |
| 02-Jun-2012 | Josh Turnbull | Wales | 12-Mar-1984 | 28(82) |
| 13-Aug-2011 | Luke Charteris | Wales | 09-Mar-1983 | 28(157) |
| 06-Aug-2011 | Mike Phillips | Wales | 29-Aug-1982 | 28(342) |
| 06-Aug-2011 | Paul James | Wales | 13-May-1982 | 29(85) |
| 13-Aug-2011 | Gavin Henson | Wales | 01-Feb-1982 | 29(193) |
| 20-Aug-2011 | Ryan Jones | Wales | 13-Mar-1981 | 30(160) |
| 20-Aug-2011 | Adam Jones | Wales | 08-Mar-1981 | 30(165) |
| 03-Dec-2011 | Gethin Jenkins | Wales | 17-Nov-1980 | 31(15) |
| 20-Aug-2011 | Lee Byrne | Wales | 01-Jun-1980 | 31(80) |
| 02-Jun-2012 | Matthew Rees | Wales | 09-Dec-1980 | 31(175) |
| 06-Aug-2011 | Stephen Jones | Wales | 08-Dec-1977 | 33(241) |
| 06-Aug-2011 | Shane Williams | Wales | 26-Feb-1977 | 34(161) |
| 20-Aug-2011 | Martyn Williams | Wales | 01-Sep-1975 | 35(354) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).