| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 16-Dec-2017 | Corey Howells | Wales | 16-Jul-1999 | 18(154) |
| 13-Jan-2018 | Dafydd Smith | Wales | 23-May-1999 | 18(236) |
| 14-Oct-2017 | Will Davies-King | Wales | 28-Jul-1998 | 19(78) |
| 14-Oct-2017 | Dane Blacker | Wales | 06-Jul-1998 | 19(100) |
| 19-Jan-2018 | Owen Lloyd | Wales | 07-Oct-1998 | 19(104) |
| 13-Jan-2018 | Alun Lawrence | Wales | 12-Aug-1998 | 19(154) |
| 21-Oct-2017 | Rhys Carre | Wales | 08-Feb-1998 | 19(255) |
| 14-Oct-2017 | Owen Lane | Wales | 20-Dec-1997 | 19(298) |
| 13-Jan-2018 | James Botham | Wales | 22-Feb-1998 | 19(325) |
| 16-Dec-2017 | Pat Lewis | Wales | 25-Nov-1997 | 20(21) |
| 21-Oct-2017 | Shane Lewis-Hughes | Wales | 20-Sep-1997 | 20(31) |
| 14-Oct-2017 | Sean Moore | Wales | 01-Jul-1997 | 20(105) |
| 16-Dec-2017 | Calum Bradbury | Wales | 01-Sep-1997 | 20(106) |
| 19-Jan-2018 | Kieron Assiratti | Wales | 30-Jun-1997 | 20(203) |
| 14-Oct-2017 | Morgan Sienawski | Wales | 11-Jan-1997 | 20(276) |
| 14-Oct-2017 | Harri Millard | Wales | 17-Aug-1996 | 21(58) |
| 13-Jan-2018 | Corey Domachowski | Wales | 19-Sep-1996 | 21(116) |
| 14-Oct-2017 | Ben Murphy | Wales | 20-Jan-1996 | 21(268) |
| 16-Dec-2017 | Dillon Lewis | Wales | 04-Jan-1996 | 21(347) |
| 14-Oct-2017 | Hemi Barnes | Wales | 13-Oct-1995 | 22(2) |
| 14-Oct-2017 | Ethan Lewis | Wales | 28-Mar-1994 | 23(200) |
| 14-Oct-2017 | Sion Bennett | Wales | 27-Nov-1993 | 23(321) |
| 16-Dec-2017 | Ben Thomas | Wales | 27-Nov-1993 | 24(19) |
| 21-Oct-2017 | Lewis Jones | Wales | 24-Nov-1992 | 24(331) |
| 13-Jan-2018 | Scott Gibson | Wales | 25-Sep-1992 | 25(110) |
| 21-Oct-2017 | Kirby Myhill | Wales | 05-Feb-1992 | 25(259) |
| 14-Oct-2017 | Dale Stuckey | Wales | 09-Nov-1991 | 25(340) |
| 13-Jan-2018 | Jack Roberts | Wales | 20-Nov-1991 | 26(55) |
| 21-Oct-2017 | Lloyd Rowlands | Wales | 02-Aug-1991 | 26(81) |
| 14-Oct-2017 | Chris Phillips | Wales | 15-Feb-1991 | 26(242) |
| 14-Oct-2017 | Dan Fish | Wales | 19-Dec-1990 | 26(300) |
| 21-Oct-2017 | Kyle Evans | Wales | 11-Sep-1990 | 27(40) |
| 14-Oct-2017 | Will Rees-Hole | Wales | 24-Apr-1990 | 27(173) |
| 13-Jan-2018 | Scott Andrews | Wales | 01-Aug-1989 | 28(165) |
| 13-Jan-2018 | James Down | Wales | 29-Aug-1987 | 30(138) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).