| Player | Position | From | Until | |
|---|---|---|---|---|
| Lee Abdul | Wing | 2000 | 2002 | |
| David Ackery | Prop | 1998 | 1999 | |
| Graham Alexander | Scrum-half | 1993 | 1994 | |
| Ogwen Alexander | Back row | 1974 | 1976 | |
| Kevin Allen | Hooker | 2001 | 2005 | |
| Kevin Allen | Prop | 1991 | 1994 | |
| Morgan Allen | Back row | 2011 | 2013 | |
| Mark Andrews | 2008 | 2009 | ||
| Stef Andrews | Wing | 2012 | 2024 | |
| Daniel ap Dafydd | 2004 | 2005 | ||
| Garrick Armstrong | 2013 | 2014 | ||
| Cliff Ashton | Fly-half | 1959 | 1962 | |
| David Austin | Prop | 1995 | 1996 | |