| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 12-Jan-2013 |  Tyler Morgan | Newport | Wales | 11-Sep-1995 | 17(124) |
| 16-Dec-2012 | Oliver Griffiths | Newport | Wales | 23-Mar-1995 | 17(269) |
| 20-Oct-2012 | Jack Dixon | Bedwas | Wales | 13-Dec-1994 | 17(312) |
| 13-Oct-2012 | Ashton Hewitt | Newport | Wales | 20-Nov-1994 | 17(328) |
| 13-Oct-2012 |  Zach Kibirige | Newcastle Falcons | England | 28-Oct-1994 | 17(351) |
| 21-Oct-2012 |  James Voss | Jersey | Jersey | 22-Jul-1994 | 18(92) |
| 05-Apr-2013 | Aled Summerhill | Pontypridd | Wales | 02-Nov-1994 | 18(155) |
| 20-Oct-2012 | Luc Jones | Neath | Wales | 12-May-1994 | 18(162) |
| 13-Oct-2012 | Ashley Evans | Bridgend | Wales | 30-Apr-1994 | 18(167) |
| 13-Oct-2012 | Scott Wilson | Newcastle Falcons | England | 12-Mar-1994 | 18(216) |
| 13-Oct-2012 | Elliott Dee | Bedwas | Wales | 07-Mar-1994 | 18(221) |
| 20-Oct-2012 | Ethan Davies | Bedwas | Wales | 28-Feb-1994 | 18(235) |
| 13-Oct-2012 | James Benjamin | Bedwas | Wales | 21-Feb-1994 | 18(235) |
| 13-Oct-2012 |  Steffan Hughes | Scarlets | Wales | 17-Feb-1994 | 18(239) |
| 08-Dec-2012 |  Adam Byrne | Leinster | Ireland | 10-Apr-1994 | 18(243) |
| 08-Dec-2012 |  Ethan Lewis | Cardiff Blues | Wales | 28-Mar-1994 | 18(256) |
| 07-Dec-2012 | Jonny Gray | Melrose | Scotland | 14-Mar-1994 | 18(269) |
| 08-Dec-2012 | Lewis Hudd | Bedwas | Wales | 16-Feb-1994 | 18(296) |
| 08-Dec-2012 | Scott Matthews | Cross Keys | Wales | 08-Feb-1994 | 18(304) |
| 13-Oct-2012 | Tom Ball | Llandovery | Wales | 09-Dec-1993 | 18(309) |
| 08-Dec-2012 | Shaun O'Rourke | Bridgend | Wales | 16-Jan-1994 | 18(327) |
| 08-Dec-2012 | Max Stelling | Jersey | England | 14-Jan-1994 | 18(329) |
| 13-Oct-2012 | Sean McDonnell-Roberts | Scarlets | Wales | 15-Nov-1993 | 18(333) |
| 16-Dec-2012 | Dominic Franchi | Newport | Wales | 09-Dec-1993 | 19(7) |
| 13-Oct-2012 | Jake Randall | Llandovery | Wales | 04-Oct-1993 | 19(9) |
| 08-Dec-2012 | Ben Thomas | Bridgend | Wales | 27-Nov-1993 | 19(11) |
| 13-Oct-2012 | Evan Yardley | Aberavon | Wales | 01-Oct-1993 | 19(12) |
| 13-Oct-2012 | Matthew Jenkins | Aberavon | Wales | 30-Sep-1993 | 19(13) |
| 07-Apr-2013 |  Callum Braley | Bristol Bears | Italy | 23-Mar-1994 | 19(15) |
| 13-Oct-2012 | Ryan Evans | Neath | Wales | 25-Sep-1993 | 19(18) |
| 09-Dec-2012 | Dion Jones | Scarlets | Wales | 13-Nov-1993 | 19(26) |
| 22-Feb-2013 | Jack Phillips | Cardiff Blues | Wales | 23-Jan-1994 | 19(30) |
| 20-Oct-2012 | Jordan Williams | Scarlets | Wales | 20-Sep-1993 | 19(30) |
| 20-Oct-2012 | Russell Anderson | Gala | Scotland | 18-Sep-1993 | 19(32) |
| 13-Oct-2012 |  Jack Arnott | Plymouth Albion | England | 02-Sep-1993 | 19(41) |
| 09-Dec-2012 | Dan Thomas | Scarlets | Wales | 11-Oct-1993 | 19(59) |
| 08-Dec-2012 | Dylan Morgans | Llandovery | Wales | 06-Oct-1993 | 19(63) |
| 08-Dec-2012 | Andrew Waite | Bridgend | Wales | 18-Sep-1993 | 19(81) |
| 13-Oct-2012 | Adam Ashe | Stirling County | Scotland | 24-Jul-1993 | 19(81) |
| 20-Oct-2012 | Ieuan Jones | Newport | Wales | 22-Jul-1993 | 19(90) |
| 13-Oct-2012 |  Conor Joyce | Ulster | Ireland | 05-Jul-1993 | 19(100) |
| 20-Oct-2012 | James Richards | Bedwas | Wales | 09-Jun-1993 | 19(133) |
| 20-Oct-2012 | Joshua Davies | Bedwas | Wales | 09-Jun-1993 | 19(133) |
| 13-Oct-2012 | Rhodri Williams | Llandovery | Wales | 05-May-1993 | 19(161) |
| 15-Dec-2012 | Will Owen | Cross Keys | Wales | 06-Jul-1993 | 19(162) |
| 15-Dec-2012 | Will Thomas | Cardiff Blues | Wales | 04-Jul-1993 | 19(164) |
| 13-Oct-2012 | Ellis Jenkins | Cardiff Blues | Wales | 29-Apr-1993 | 19(167) |
| 14-Dec-2012 | Dan Suter | Bridgend | Wales | 29-Jun-1993 | 19(168) |
| 15-Dec-2012 | Alex Lozowski | Leeds Tykes | England | 30-Jun-1993 | 19(168) |
| 12-Jan-2013 | Aaron Warren | Llandovery | Wales | 25-Jul-1993 | 19(171) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).