| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 16-Jun-2017 | Seb Davies | Wales | 15-May-1996 | 21(32) |
| 23-Jun-2017 | Dillon Lewis | Wales | 04-Jan-1996 | 21(171) |
| 23-Jun-2017 | Tyler Morgan | Wales | 11-Sep-1995 | 21(286) |
| 23-Jun-2017 | Rory Thornton | Wales | 16-Mar-1995 | 22(100) |
| 23-Jun-2017 | Ryan Elias | Wales | 07-Jan-1995 | 22(168) |
| 05-Nov-2016 | Ross Moriarty | Wales | 18-Apr-1994 | 22(202) |
| 19-Nov-2016 | Nicky Smith | Wales | 07-Apr-1994 | 22(227) |
| 16-Jun-2017 | Steffan Evans | Wales | 01-Sep-1994 | 22(289) |
| 16-Jun-2017 | Sam Davies | Wales | 06-Oct-1993 | 23(253) |
| 05-Nov-2016 | Samson Lee | Wales | 30-Nov-1992 | 23(340) |
| 23-Jun-2017 | Ellis Jenkins | Wales | 29-Apr-1993 | 24(55) |
| 23-Jun-2017 | Cory Allen | Wales | 11-Feb-1993 | 24(132) |
| 12-Nov-2016 | Tomas Francis | Wales | 27-Apr-1992 | 24(199) |
| 05-Nov-2016 | George North | Wales | 13-Apr-1992 | 24(206) |
| 19-Nov-2016 | Cory Hill | Wales | 10-Feb-1992 | 24(283) |
| 23-Jun-2017 | Aled Davies | Wales | 19-Jul-1992 | 24(339) |
| 16-Jun-2017 | Thomas Young | Wales | 18-May-1992 | 25(29) |
| 19-Nov-2016 | Gareth Anscombe | Wales | 10-May-1991 | 25(194) |
| 12-Nov-2016 | Liam Williams | Wales | 09-Apr-1991 | 25(218) |
| 05-Nov-2016 | Scott Williams | Wales | 10-Oct-1990 | 26(27) |
| 12-Nov-2016 | Gareth Davies | Wales | 18-Aug-1990 | 26(87) |
| 19-Nov-2016 | James King | Wales | 24-Jul-1990 | 26(119) |
| 16-Jun-2017 | Josh Navidi | Wales | 30-Dec-1990 | 26(169) |
| 05-Nov-2016 | Alex Cuthbert | Wales | 05-Apr-1990 | 26(215) |
| 19-Nov-2016 | Lloyd Williams | Wales | 30-Nov-1989 | 26(355) |
| 05-Nov-2016 | Daniel Biggar | Wales | 16-Oct-1989 | 27(20) |
| 05-Nov-2016 | Justin Tipuric | Wales | 06-Aug-1989 | 27(91) |
| 05-Nov-2016 | Leigh Halfpenny | Wales | 22-Dec-1988 | 27(318) |
| 16-Jun-2017 | Kristian Dacey | Wales | 25-Jul-1989 | 27(326) |
| 05-Nov-2016 | Rhys Webb | Wales | 09-Dec-1988 | 27(331) |
| 12-Nov-2016 | Sam Warburton | Wales | 05-Oct-1988 | 28(38) |
| 19-Nov-2016 | Scott Baldwin | Wales | 12-Jul-1988 | 28(130) |
| 12-Nov-2016 | Jon Davies | Wales | 05-Apr-1988 | 28(221) |
| 05-Nov-2016 | Dan Lydiatt | Wales | 18-Dec-1987 | 28(323) |
| 05-Nov-2016 | Ken Owens | Wales | 03-Jan-1987 | 29(307) |
| 16-Jun-2017 | Aaron Shingler | Wales | 07-Aug-1987 | 29(314) |
| 05-Nov-2016 | Jamie Roberts | Wales | 08-Nov-1986 | 29(363) |
| 12-Nov-2016 | Alan Wyn Jones | Wales | 19-Sep-1985 | 31(54) |
| 05-Nov-2016 | Bradley Davies | Wales | 09-Jan-1985 | 31(300) |
| 05-Nov-2016 | Luke Charteris | Wales | 09-Mar-1983 | 33(242) |
| 05-Nov-2016 | Gethin Jenkins | Wales | 17-Nov-1980 | 35(354) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).