| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 06-Mar-2015 | Taufa'ao Filise | Tonga | 26-May-1977 | 37(284) |
| 16-May-2015 | Gethin Jenkins | Wales | 17-Nov-1980 | 34(180) |
| 10-May-2015 | Matthew Rees | Wales | 09-Dec-1980 | 34(152) |
| 16-May-2015 | Adam Jones | Wales | 08-Mar-1981 | 34(69) |
| 01-Mar-2015 | Manoa Vosawai | Italy | 12-Aug-1983 | 31(202) |
| 10-May-2015 | Jarrad Hoeata | New Zealand | 12-Dec-1983 | 31(149) |
| 10-May-2015 | Josh Turnbull | Wales | 12-Mar-1984 | 31(59) |
| 10-Apr-2015 | Gareth Davies | Wales | 02-Mar-1984 | 31(38) |
| 16-May-2015 | Gavin Evans | Wales | 18-Jul-1984 | 30(302) |
| 25-Apr-2015 | Chris Dicomidis | Wales | 14-Sep-1985 | 29(223) |
| 25-Apr-2015 | Lucas Gonzalez Amorosino | Argentina | 02-Nov-1985 | 29(174) |
| 26-Sep-2014 | Daffyd Hewitt | Wales | 21-Aug-1985 | 29(36) |
| 10-May-2015 | Craig Mitchell | Wales | 03-May-1986 | 29(7) |
| 20-Feb-2015 | Adam Thomas | Wales | 22-Aug-1986 | 28(182) |
| 16-May-2015 | Tom Isaacs | Wales | 18-Feb-1987 | 28(87) |
| 16-May-2015 | Lou Reed | Wales | 10-Sep-1987 | 27(248) |
| 16-May-2015 | Filo Paulo | Samoa | 06-Nov-1987 | 27(191) |
| 16-May-2015 | Richard Smith | Wales | 08-Nov-1987 | 27(189) |
| 10-Apr-2015 | Sam Hobbs | Wales | 13-May-1988 | 26(332) |
| 16-May-2015 | Sam Warburton | Wales | 05-Oct-1988 | 26(223) |
| 28-Nov-2014 | Geraint Walsh | Wales | 19-May-1988 | 26(193) |
| 10-May-2015 | Joaquin Tuculet | Argentina | 06-Jun-1989 | 25(338) |
| 16-May-2015 | Kristian Dacey | Wales | 25-Jul-1989 | 25(295) |
| 10-May-2015 | Lloyd Williams | Wales | 30-Nov-1989 | 25(161) |
| 16-May-2015 | Alex Cuthbert | Wales | 05-Apr-1990 | 25(41) |
| 16-May-2015 | Tavis Knoyle | Wales | 02-Jun-1990 | 24(348) |
| 16-May-2015 | Josh Navidi | Wales | 30-Dec-1990 | 24(137) |
| 10-Apr-2015 | Dan Fish | Wales | 19-Dec-1990 | 24(112) |
| 26-Sep-2014 | George Watkins | England | 11-Sep-1990 | 24(15) |
| 10-May-2015 | Gareth Anscombe | Wales | 10-May-1991 | 24(0) |
| 16-May-2015 | Macauley Cook | Wales | 31-Dec-1991 | 23(136) |
| 10-May-2015 | Thomas Davies | Wales | 10-Mar-1993 | 22(61) |
| 27-Mar-2015 | Cory Allen | Wales | 11-Feb-1993 | 22(44) |
| 26-Dec-2014 | Lewis Jones | Wales | 24-Nov-1992 | 22(32) |
| 16-May-2015 | Rhys Patchell | Wales | 17-May-1993 | 21(364) |
| 27-Mar-2015 | Ellis Jenkins | Wales | 29-Apr-1993 | 21(332) |
| 20-Feb-2015 | Owen Jenkins | Wales | 20-Jul-1993 | 21(215) |
| 16-May-2015 | Aled Summerhill | Wales | 02-Nov-1994 | 20(195) |
| 10-May-2015 | Garyn Smith | Wales | 12-Jul-1995 | 19(302) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).