| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 04-Jan-2013 | Ian Gough | Wales | 10-Nov-1976 | 36(55) |
| 03-May-2013 | Duncan Jones | Wales | 18-Sep-1978 | 34(228) |
| 03-May-2013 | Joe Bearman | England | 28-Feb-1979 | 34(65) |
| 30-Nov-2012 | George Stowers | Fiji | 14-Feb-1979 | 33(290) |
| 03-May-2013 | Adam Jones | Wales | 08-Mar-1981 | 32(56) |
| 31-Dec-2012 | Ryan Jones | Wales | 13-Mar-1981 | 31(294) |
| 19-Apr-2013 | Kahn Fotuali'i | Samoa | 22-May-1982 | 30(333) |
| 23-Nov-2012 | Owen Williams | Wales | 03-Feb-1982 | 30(294) |
| 30-Mar-2013 | Jonathan Thomas | Wales | 27-Dec-1982 | 30(94) |
| 19-Apr-2013 | Richard Hibbard | Wales | 13-Dec-1983 | 29(128) |
| 02-Mar-2013 | Cai Griffiths | Wales | 05-Jan-1984 | 29(57) |
| 03-May-2013 | Richard Fussell | Wales | 12-Apr-1984 | 29(21) |
| 19-Apr-2013 | Ian Evans | Wales | 04-Oct-1984 | 28(197) |
| 04-Nov-2012 | Matt Dwyer | Wales | 18-Jan-1985 | 27(290) |
| 03-May-2013 | Alan Wyn Jones | Wales | 19-Sep-1985 | 27(226) |
| 31-Dec-2012 | Andrew Bishop | Wales | 07-Aug-1985 | 27(146) |
| 19-Apr-2013 | Jonathan Spratt | Wales | 28-Apr-1986 | 26(357) |
| 27-Oct-2012 | Aaron Jarvis | Wales | 20-May-1986 | 26(161) |
| 19-Apr-2013 | Tom Isaacs | Wales | 18-Feb-1987 | 26(61) |
| 03-May-2013 | Scott Baldwin | Wales | 12-Jul-1988 | 24(295) |
| 03-May-2013 | Rhys Webb | Wales | 09-Dec-1988 | 24(145) |
| 13-Apr-2013 | Ryan Bevington | Wales | 09-Dec-1988 | 24(125) |
| 03-May-2013 | Justin Tipuric | Wales | 06-Aug-1989 | 23(270) |
| 03-May-2013 | Daniel Biggar | Wales | 16-Oct-1989 | 23(199) |
| 03-May-2013 | Ashley Beck | Wales | 15-Apr-1990 | 23(18) |
| 22-Feb-2013 | Morgan Allen | Wales | 12-Mar-1990 | 22(348) |
| 03-May-2013 | James King | Wales | 24-Jul-1990 | 22(284) |
| 03-May-2013 | Sam Lewis | Wales | 11-Nov-1990 | 22(174) |
| 04-Nov-2012 | Joe Rees | Wales | 31-Aug-1990 | 22(66) |
| 03-May-2013 | Ben John | Wales | 28-Feb-1991 | 22(65) |
| 02-Mar-2013 | Lloyd Peers | Wales | 02-Feb-1991 | 22(29) |
| 04-Nov-2012 | Hanno Dirksen | South Africa | 31-Mar-1991 | 21(219) |
| 03-May-2013 | Ross Jones | Wales | 11-Jan-1992 | 21(113) |
| 21-Sep-2012 | Tom Grabham | Wales | 20-Jun-1991 | 21(94) |
| 03-May-2013 | Tom Habberfield | Wales | 19-May-1992 | 20(349) |
| 02-Mar-2013 | Matthew Morgan | Wales | 23-Apr-1992 | 20(313) |
| 04-Jan-2013 | Eli Walker | Wales | 28-Mar-1992 | 20(282) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).