| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 17-Mar-2012 |  Andrea Lo Cicero | Italy | Italy | 07-May-1976 | 35(315) |
| 04-Feb-2012 |  Lionel Nallet | France | France | 14-Sep-1976 | 35(143) |
| 17-Mar-2012 | Fabio Ongaro | Italy | Italy | 23-Sep-1977 | 34(176) |
| 17-Mar-2012 | William Servat | France | France | 09-Feb-1978 | 34(37) |
| 04-Feb-2012 |  Dan Parks | Scotland | Scotland | 26-May-1978 | 33(254) |
| 17-Mar-2012 | Julien Bonnaire | France | France | 20-Sep-1978 | 33(179) |
| 10-Mar-2012 | Allan Jacobson | Scotland | Scotland | 22-Sep-1978 | 33(170) |
| 10-Mar-2012 | Corniel Van Zyl | Italy | Italy | 27-Jan-1979 | 33(43) |
| 17-Mar-2012 |  Donncha O'Callaghan | Ireland | Ireland | 24-Mar-1979 | 32(359) |
| 11-Feb-2012 |  Tom Palmer | England | England | 27-Mar-1979 | 32(321) |
| 17-Mar-2012 | Jean-Baptiste Poux | France | France | 26-Sep-1979 | 32(173) |
| 04-Mar-2012 | Paul O'Connell | Ireland | Ireland | 20-Oct-1979 | 32(136) |
| 17-Mar-2012 | Mike Ross | Ireland | Ireland | 21-Dec-1979 | 32(87) |
| 17-Mar-2012 | Gordon D'Arcy | Ireland | Ireland | 10-Feb-1980 | 32(36) |
| 17-Mar-2012 | Imanol Harinordoquy | France | France | 20-Feb-1980 | 32(26) |
| 11-Mar-2012 | Nicolas Mas | France | France | 25-May-1980 | 31(291) |
| 17-Mar-2012 | Marco Bortolami | Italy | Italy | 12-Jun-1980 | 31(278) |
| 17-Mar-2012 | Kristopher Burton | Italy | Italy | 04-Aug-1980 | 31(226) |
| 04-Feb-2012 | Euan Murray | Scotland | Scotland | 07-Aug-1980 | 31(181) |
| 17-Mar-2012 | Dmitri Yachvili | France | France | 19-Sep-1980 | 31(179) |
| 17-Mar-2012 | Aurelien Rougerie | France | France | 26-Sep-1980 | 31(173) |
| 17-Mar-2012 | Pascal Pape | France | France | 05-Oct-1980 | 31(163) |
| 17-Mar-2012 |  Gethin Jenkins | Wales | Wales | 17-Nov-1980 | 31(120) |
| 17-Mar-2012 | Eion Redden | Ireland | Ireland | 20-Nov-1980 | 31(117) |
| 17-Mar-2012 | Matthew Rees | Wales | Wales | 09-Dec-1980 | 31(99) |
| 11-Feb-2012 | Charlie Hodgson | England | England | 12-Nov-1980 | 31(91) |
| 17-Mar-2012 | Sean Lamont | Scotland | Scotland | 15-Jan-1981 | 31(62) |
| 17-Mar-2012 | Adam Jones | Wales | Wales | 08-Mar-1981 | 31(9) |
| 17-Mar-2012 | Andrea Masi | Italy | Italy | 30-Mar-1981 | 30(353) |
| 12-Feb-2012 | Ryan Jones | Wales | Wales | 13-Mar-1981 | 30(336) |
| 17-Mar-2012 | Mike Blair | Scotland | Scotland | 20-Apr-1981 | 30(332) |
| 11-Mar-2012 | Vincent Clerc | France | France | 07-May-1981 | 30(309) |
| 17-Mar-2012 | Quintin Geldenhuys | Italy | Italy | 07-Jun-1981 | 30(284) |
| 17-Mar-2012 | David Attoub | France | France | 07-Jun-1981 | 30(284) |
| 17-Mar-2012 | Martin Castrogiovanni | Italy | Italy | 21-Oct-1981 | 30(148) |
| 11-Feb-2012 | Phil Dowson | England | England | 01-Oct-1981 | 30(133) |
| 04-Feb-2012 | Vincent Debaty | France | France | 02-Oct-1981 | 30(125) |
| 17-Mar-2012 | Thierry Dussautoir | France | France | 18-Nov-1981 | 30(120) |
| 17-Mar-2012 | Mouritz Botha | England | England | 29-Jan-1982 | 30(48) |
| 17-Mar-2012 | Clement Poitrenaud | France | France | 20-May-1982 | 29(302) |
| 12-Feb-2012 | Chris Cusiter | Scotland | Scotland | 13-Jun-1982 | 29(244) |
| 17-Mar-2012 | Rory Best | Ireland | Ireland | 15-Aug-1982 | 29(215) |
| 17-Mar-2012 | Mike Phillips | Wales | Wales | 29-Aug-1982 | 29(201) |
| 25-Feb-2012 | Michele Rizzo | Italy | Italy | 16-Sep-1982 | 29(162) |
| 17-Mar-2012 | Graeme Morrison | Scotland | Scotland | 17-Oct-1982 | 29(152) |
| 26-Feb-2012 | Rory Lamont | Scotland | Scotland | 10-Oct-1982 | 29(139) |
| 17-Mar-2012 | Gonzalo Canale | Italy | Italy | 11-Nov-1982 | 29(127) |
| 17-Mar-2012 | James Hamilton | Scotland | Scotland | 17-Nov-1982 | 29(121) |
| 17-Mar-2012 | Geoff Cross | Scotland | Scotland | 11-Dec-1982 | 29(97) |
| 10-Mar-2012 | Lorenzo Cittadini | Italy | Italy | 17-Dec-1982 | 29(84) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).