| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 05-Dec-2020 | Ben Carter | Wales | 23-Jan-2001 | 19(316) |
| 19-Feb-2021 | Aneurin Owen | Wales | 19-Oct-2000 | 20(123) |
| 09-Oct-2020 | Taine Basham | Wales | 02-Nov-1999 | 20(342) |
| 13-Mar-2021 | Rio Dyer | Wales | 21-Dec-1999 | 21(83) |
| 01-Nov-2020 | Ben Fry | Wales | 26-Sep-1998 | 22(37) |
| 25-Oct-2020 | Jared Rosser | Wales | 31-Dec-1997 | 22(299) |
| 02-Oct-2020 | Aaron Wainwright | Wales | 25-Sep-1997 | 23(7) |
| 02-Oct-2020 | Will Talbot-Davies | Wales | 11-Sep-1997 | 23(21) |
| 05-Dec-2020 | Ellis Shipp | Wales | 14-Aug-1997 | 23(113) |
| 09-Oct-2020 | Leon Brown | Wales | 26-Oct-1996 | 23(348) |
| 02-Oct-2020 | Harrison Keddie | Wales | 10-Jul-1996 | 24(84) |
| 09-Jan-2021 | Huw Taylor | England | 05-Jun-1996 | 24(218) |
| 02-Oct-2020 | Joseph Davies | Wales | 13-Nov-1995 | 24(324) |
| 02-Oct-2020 | Joe Maksymiw | England | 20-Sep-1995 | 25(13) |
| 25-Oct-2020 | Ollie Griffiths | Wales | 23-Mar-1995 | 25(217) |
| 02-Oct-2020 | Nick Tompkins | Wales | 16-Feb-1995 | 25(229) |
| 25-Oct-2020 | Jack Dixon | Wales | 13-Dec-1994 | 25(317) |
| 02-Oct-2020 | Ashton Hewitt | Wales | 20-Nov-1994 | 25(317) |
| 02-Oct-2020 | Ross Moriarty | Wales | 18-Apr-1994 | 26(168) |
| 02-Oct-2020 | Elliott Dee | Wales | 07-Mar-1994 | 26(210) |
| 02-Oct-2020 | Sam Davies | Wales | 06-Oct-1993 | 26(362) |
| 09-Oct-2020 | Jordan Williams | Wales | 20-Sep-1993 | 27(19) |
| 27-Feb-2021 | Gonzalo Bertranou | Argentina | 31-Dec-1993 | 27(58) |
| 01-Nov-2020 | Owen Jenkins | Wales | 20-Jul-1993 | 27(104) |
| 02-Oct-2020 | Rhodri Williams | Wales | 05-May-1993 | 27(150) |
| 09-Oct-2020 | Matthew Screech | Wales | 24-Oct-1992 | 27(350) |
| 02-Oct-2020 | Jonah Holmes | Wales | 24-Jul-1992 | 28(70) |
| 01-Nov-2020 | Josh Lewis | Wales | 22-Mar-1992 | 28(224) |
| 25-Oct-2020 | Lloyd Fairbrother | England | 13-Nov-1991 | 28(347) |
| 25-Oct-2020 | Adam Warren | Wales | 07-Mar-1991 | 29(233) |
| 26-Dec-2020 | Tavis Knoyle | Wales | 02-Jun-1990 | 30(208) |
| 25-Oct-2020 | Greg Bateman | England | 20-Jun-1989 | 31(128) |
| 02-Oct-2020 | Jamie Roberts | Wales | 08-Nov-1986 | 33(329) |
| 02-Oct-2020 | Aaron Jarvis | Wales | 20-May-1986 | 34(136) |
| 02-Oct-2020 | Juan Harris | South Africa | 22-Feb-1985 | 35(223) |
| 25-Oct-2020 | Richard Hibbard | Wales | 13-Dec-1983 | 36(317) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).