| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 19-Jan-2019 | Harri Morgan | Wales | 16-Mar-2000 | 18(309) |
| 20-Oct-2018 | Tiaan Thomas-Wheeler | Wales | 19-Nov-1999 | 18(336) |
| 20-Oct-2018 | Cai Evans | Wales | 23-Jun-1999 | 19(119) |
| 19-Jan-2019 | Will Griffiths | Wales | 25-Dec-1998 | 20(25) |
| 20-Oct-2018 | Keelan Giles | Wales | 29-Jan-1998 | 20(264) |
| 20-Oct-2018 | James Ratti | Wales | 14-Oct-1997 | 21(6) |
| 20-Oct-2018 | Matthew Aubrey | Wales | 04-Jun-1997 | 21(138) |
| 13-Oct-2018 | Owen Watkin | Wales | 12-Oct-1996 | 22(1) |
| 20-Oct-2018 | Ifan Phillips | Wales | 29-Jan-1996 | 22(265) |
| 13-Oct-2018 | Adam Beard | Wales | 07-Jan-1996 | 22(280) |
| 12-Jan-2019 | Luke Price | Wales | 26-Sep-1995 | 23(108) |
| 12-Jan-2019 | Alex Jeffries | Wales | 27-Apr-1995 | 23(260) |
| 13-Oct-2018 | Scott Otten | Wales | 19-Jul-1994 | 24(86) |
| 13-Oct-2018 | Oliver Cracknell | Wales | 26-May-1994 | 24(140) |
| 08-Dec-2018 | Nicky Smith | Wales | 07-Apr-1994 | 24(245) |
| 13-Oct-2018 | Sam Davies | Wales | 06-Oct-1993 | 25(7) |
| 12-Jan-2019 | Gareth Thomas | Wales | 02-Aug-1993 | 25(163) |
| 13-Oct-2018 | Cory Allen | Wales | 11-Feb-1993 | 25(244) |
| 14-Dec-2018 | Johnny Kotze | South Africa | 24-Jan-1993 | 25(324) |
| 19-Jan-2019 | Gheorge Gajion | Romania | 13-Nov-1992 | 26(67) |
| 13-Oct-2018 | Aled Davies | Wales | 19-Jul-1992 | 26(86) |
| 08-Dec-2018 | Sam Cross | Wales | 26-Aug-1992 | 26(104) |
| 13-Oct-2018 | Luke Morgan | Wales | 16-May-1992 | 26(150) |
| 13-Oct-2018 | George North | Wales | 13-Apr-1992 | 26(183) |
| 14-Dec-2018 | Tom Habberfield | Wales | 19-May-1992 | 26(209) |
| 13-Oct-2018 | Rhodri Jones | Wales | 23-Dec-1991 | 26(295) |
| 19-Jan-2019 | Sam Parry | Wales | 17-Dec-1991 | 27(33) |
| 20-Oct-2018 | Hanno Dirksen | South Africa | 31-Mar-1991 | 27(203) |
| 08-Dec-2018 | Lloyd Ashley | Wales | 02-Feb-1991 | 27(309) |
| 20-Oct-2018 | Tom Botha | South Africa | 31-Aug-1990 | 28(50) |
| 08-Dec-2018 | Scott Williams | Wales | 10-Oct-1990 | 28(59) |
| 13-Oct-2018 | James King | Wales | 24-Jul-1990 | 28(81) |
| 13-Oct-2018 | Ma'afu Fia | Tonga | 22-Nov-1989 | 28(325) |
| 13-Oct-2018 | Justin Tipuric | Wales | 06-Aug-1989 | 29(68) |
| 08-Dec-2018 | Daniel Evans | Wales | 15-Nov-1988 | 30(23) |
| 20-Oct-2018 | Scott Baldwin | Wales | 12-Jul-1988 | 30(100) |
| 20-Oct-2018 | Robert McCusker | Wales | 12-Oct-1985 | 33(8) |
| 13-Oct-2018 | James Hook | Wales | 27-Jun-1985 | 33(108) |
| 13-Oct-2018 | Bradley Davies | Wales | 09-Jan-1985 | 33(277) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).