| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 19-Dec-2020 | Stephen Myler | England | 21-Jul-1984 | 36(151) |
| 03-Apr-2021 | Alan Wyn Jones | Wales | 19-Sep-1985 | 35(197) |
| 09-Dec-2016 | Paul James | Wales | 13-May-1982 | 34(211) |
| 13-Oct-2018 | Bradley Davies | Wales | 09-Jan-1985 | 33(277) |
| 12-Dec-2020 | Shaun Venter | South Africa | 16-Mar-1987 | 33(272) |
| 14-Dec-2018 | James Hook | Wales | 27-Jun-1985 | 33(170) |
| 19-Jan-2019 | Robert McCusker | Wales | 12-Oct-1985 | 33(99) |
| 19-Dec-2020 | Dan Lydiatt | Wales | 18-Dec-1987 | 33(2) |
| 02-Apr-2017 | Brian Mujati | South Africa | 28-Sep-1984 | 32(186) |
| 03-Apr-2021 | Daniel Evans | Wales | 15-Nov-1988 | 32(139) |
| 17-Dec-2016 | Brendon Leonard | New Zealand | 16-Apr-1985 | 31(246) |
| 03-Apr-2021 | Justin Tipuric | Wales | 06-Aug-1989 | 31(241) |
| 03-Apr-2021 | Ma'afu Fia | Tonga | 22-Nov-1989 | 31(133) |
| 12-Jan-2019 | Scott Baldwin | Wales | 12-Jul-1988 | 30(184) |
| 22-Oct-2016 | Jonathan Spratt | Wales | 28-Apr-1986 | 30(178) |
| 12-Dec-2020 | Lloyd Ashley | Wales | 02-Feb-1991 | 29(314) |
| 03-Apr-2021 | Sam Parry | Wales | 17-Dec-1991 | 29(108) |
| 03-Apr-2021 | George North | Wales | 13-Apr-1992 | 28(355) |
| 21-Jan-2017 | Kieron Fonotia | Samoa | 02-Feb-1988 | 28(354) |
| 19-Jan-2019 | James King | Wales | 24-Jul-1990 | 28(179) |
| 02-Apr-2017 | Rhys Webb | Wales | 09-Dec-1988 | 28(114) |
| 14-Dec-2018 | Tom Botha | South Africa | 31-Aug-1990 | 28(105) |
| 12-Jan-2019 | Scott Williams | Wales | 10-Oct-1990 | 28(94) |
| 09-Dec-2016 | Dimitri Arhip | Moldova | 12-Nov-1988 | 28(27) |
| 19-Jan-2019 | Hanno Dirksen | South Africa | 31-Mar-1991 | 27(294) |
| 02-Apr-2017 | Daniel Biggar | Wales | 16-Oct-1989 | 27(168) |
| 19-Dec-2020 | Gareth Thomas | Wales | 02-Aug-1993 | 27(139) |
| 03-Apr-2021 | Nicky Smith | Wales | 07-Apr-1994 | 26(362) |
| 14-Dec-2018 | Rhodri Jones | Wales | 23-Dec-1991 | 26(357) |
| 02-Apr-2017 | Ashley Beck | Wales | 15-Apr-1990 | 26(353) |
| 19-Jan-2019 | Luke Morgan | Wales | 16-May-1992 | 26(248) |
| 14-Dec-2018 | Tom Habberfield | Wales | 19-May-1992 | 26(209) |
| 02-Apr-2017 | Josh Matavasi | Fiji | 05-Oct-1990 | 26(180) |
| 12-Jan-2019 | Aled Davies | Wales | 19-Jul-1992 | 26(177) |
| 19-Jan-2019 | Sam Cross | Wales | 26-Aug-1992 | 26(146) |
| 19-Jan-2019 | Gheorge Gajion | Romania | 13-Nov-1992 | 26(67) |
| 19-Jan-2019 | Johnny Kotze | South Africa | 24-Jan-1993 | 25(360) |
| 12-Jan-2019 | Cory Allen | Wales | 11-Feb-1993 | 25(335) |
| 14-Oct-2016 | Ben John | Wales | 28-Feb-1991 | 25(229) |
| 03-Apr-2021 | Luke Price | Wales | 26-Sep-1995 | 25(190) |
| 19-Jan-2019 | Sam Davies | Wales | 06-Oct-1993 | 25(105) |
| 03-Apr-2021 | Adam Beard | Wales | 07-Jan-1996 | 25(87) |
| 02-Apr-2017 | Dan Baker | Wales | 05-Jul-1992 | 24(271) |
| 12-Jan-2019 | Oliver Cracknell | Wales | 26-May-1994 | 24(231) |
| 14-Oct-2016 | Eli Walker | Wales | 28-Mar-1992 | 24(200) |
| 03-Apr-2021 | Owen Watkin | Wales | 12-Oct-1996 | 24(173) |
| 13-Oct-2018 | Scott Otten | Wales | 19-Jul-1994 | 24(86) |
| 19-Dec-2020 | Matthew Protheroe | England | 10-Oct-1996 | 24(70) |
| 03-Apr-2021 | Kieran Williams | Wales | 12-Apr-1997 | 23(356) |
| 12-Jan-2019 | Alex Jeffries | Wales | 27-Apr-1995 | 23(260) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).