| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 31-Aug-2019 | Rhys Carre | Wales | 08-Feb-1998 | 21(204) |
| 31-Aug-2019 | Owen Lane | Wales | 20-Dec-1997 | 21(254) |
| 11-Aug-2019 | Aaron Wainwright | Wales | 25-Sep-1997 | 21(320) |
| 31-Aug-2019 | Owen Watkin | Wales | 12-Oct-1996 | 22(323) |
| 31-Aug-2019 | Jarrod Evans | Wales | 25-Jul-1996 | 23(36) |
| 11-Aug-2019 | Adam Beard | Wales | 07-Jan-1996 | 23(216) |
| 11-Aug-2019 | Josh Adams | Wales | 21-Apr-1995 | 24(112) |
| 31-Aug-2019 | Ryan Elias | Wales | 07-Jan-1995 | 24(236) |
| 07-Sep-2019 | Tomos Williams | Wales | 01-Jan-1995 | 24(249) |
| 31-Aug-2019 | Hallam Amos | Wales | 24-Sep-1994 | 24(341) |
| 31-Aug-2019 | Steffan Evans | Wales | 01-Sep-1994 | 24(364) |
| 11-Aug-2019 | Ross Moriarty | Wales | 18-Apr-1994 | 25(115) |
| 11-Aug-2019 | Nicky Smith | Wales | 07-Apr-1994 | 25(126) |
| 07-Sep-2019 | Elliott Dee | Wales | 07-Mar-1994 | 25(184) |
| 07-Sep-2019 | Rhys Patchell | Wales | 17-May-1993 | 26(113) |
| 31-Aug-2019 | Samson Lee | Wales | 30-Nov-1992 | 26(274) |
| 31-Aug-2019 | Aled Davies | Wales | 19-Jul-1992 | 27(42) |
| 11-Aug-2019 | Tomas Francis | Wales | 27-Apr-1992 | 27(105) |
| 11-Aug-2019 | George North | Wales | 13-Apr-1992 | 27(119) |
| 07-Sep-2019 | Wyn Jones | Wales | 26-Feb-1992 | 27(193) |
| 17-Aug-2019 | Jake Ball | Wales | 21-Jun-1991 | 28(57) |
| 11-Aug-2019 | Gareth Anscombe | Wales | 10-May-1991 | 28(93) |
| 11-Aug-2019 | Liam Williams | Wales | 09-Apr-1991 | 28(124) |
| 31-Aug-2019 | Josh Navidi | Wales | 30-Dec-1990 | 28(244) |
| 17-Aug-2019 | James Davies | Wales | 25-Oct-1990 | 28(296) |
| 31-Aug-2019 | Scott Williams | Wales | 10-Oct-1990 | 28(325) |
| 11-Aug-2019 | Gareth Davies | Wales | 18-Aug-1990 | 28(358) |
| 17-Aug-2019 | Daniel Biggar | Wales | 16-Oct-1989 | 29(305) |
| 11-Aug-2019 | Justin Tipuric | Wales | 06-Aug-1989 | 30(5) |
| 17-Aug-2019 | Leigh Halfpenny | Wales | 22-Dec-1988 | 30(238) |
| 11-Aug-2019 | Jon Davies | Wales | 05-Apr-1988 | 31(128) |
| 11-Aug-2019 | Hadleigh Parkes | Wales | 05-Oct-1987 | 31(310) |
| 31-Aug-2019 | Aaron Shingler | Wales | 07-Aug-1987 | 32(24) |
| 11-Aug-2019 | Ken Owens | Wales | 03-Jan-1987 | 32(220) |
| 11-Aug-2019 | Alan Wyn Jones | Wales | 19-Sep-1985 | 33(326) |
| 31-Aug-2019 | Bradley Davies | Wales | 09-Jan-1985 | 34(234) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).