| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 04-Mar-2017 | Werner Kruger | South Africa | 23-Jan-1985 | 32(40) |
| 01-Jan-2017 | Aled Thomas | Wales | 02-Jan-1985 | 31(365) |
| 08-Apr-2017 | Daniel Van Der Merwe | Canada | 28-Apr-1986 | 30(346) |
| 15-Apr-2017 | John Barclay | Scotland | 24-Sep-1986 | 30(204) |
| 06-May-2017 | Ken Owens | Wales | 03-Jan-1987 | 30(124) |
| 17-Feb-2017 | Emyr Phillips | Wales | 22-Feb-1987 | 29(361) |
| 06-May-2017 | Aaron Shingler | Wales | 07-Aug-1987 | 29(273) |
| 29-Apr-2017 | Hadleigh Parkes | Wales | 05-Oct-1987 | 29(207) |
| 06-May-2017 | Jon Davies | Wales | 05-Apr-1988 | 29(31) |
| 10-Feb-2017 | Gareth Owen | Wales | 05-Nov-1988 | 28(97) |
| 03-Sep-2016 | Dylan Evans | Australia | 25-Jan-1989 | 27(221) |
| 25-Nov-2016 | David Bulbring | South Africa | 12-Sep-1989 | 27(74) |
| 06-May-2017 | Lewis Rawlins | Wales | 13-Apr-1990 | 27(23) |
| 06-May-2017 | Gareth Davies | Wales | 18-Aug-1990 | 26(262) |
| 06-May-2017 | Johnny McNicholl | Wales | 24-Sep-1990 | 26(225) |
| 08-Oct-2016 | Morgan Allen | Wales | 12-Mar-1990 | 26(211) |
| 06-May-2017 | Scott Williams | Wales | 10-Oct-1990 | 26(209) |
| 15-Apr-2017 | James Davies | Wales | 25-Oct-1990 | 26(173) |
| 06-May-2017 | Liam Williams | Wales | 09-Apr-1991 | 26(28) |
| 04-Mar-2017 | Tom Williams | Wales | 02-Apr-1991 | 25(337) |
| 29-Apr-2017 | Jake Ball | Wales | 21-Jun-1991 | 25(313) |
| 24-Mar-2017 | Wyn Jones | Wales | 26-Feb-1992 | 25(27) |
| 06-May-2017 | Rob Evans | Wales | 14-Apr-1992 | 25(22) |
| 06-May-2017 | Tadhg Beirne | Ireland | 01-Aug-1992 | 24(278) |
| 29-Apr-2017 | Jonathan Evans | Wales | 25-Jul-1992 | 24(278) |
| 24-Mar-2017 | Aled Davies | Wales | 19-Jul-1992 | 24(248) |
| 06-May-2017 | Samson Lee | Wales | 30-Nov-1992 | 24(157) |
| 15-Apr-2017 | Tom Price | England | 22-Jan-1993 | 24(83) |
| 06-May-2017 | Rhys Patchell | Wales | 17-May-1993 | 23(354) |
| 04-Mar-2017 | Steffan Hughes | Wales | 17-Feb-1994 | 23(15) |
| 06-May-2017 | Steffan Evans | Wales | 01-Sep-1994 | 22(248) |
| 06-May-2017 | Will Boyde | Wales | 15-Dec-1994 | 22(143) |
| 24-Mar-2017 | Ryan Elias | Wales | 07-Jan-1995 | 22(77) |
| 15-Apr-2017 | Daniel Jones | Wales | 07-Jan-1996 | 21(99) |
| 06-May-2017 | Josh Macleod | Wales | 27-Oct-1996 | 20(191) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).