| Name | Character | Episodes |
|---|---|---|
| Natasha O'Keeffe | Agnes Moore | 5 |
| Chris McHallem | Albert Saunders | 5 |
| Paul Ritter | General Ormonde Winter | 5 |
| Catherine Walker | Constance Butler | 5 |
| David Wilmot | Patrick Mahon | 5 |
| Brian Doherty | Frank Brogan | 5 |
| Craig Parkinson | Captain David McLeod | 5 |
| Frankie McCafferty | Father Leonard | 5 |
| Stanley Townsend | Senator Daniel Shea | 5 |
| Simone Kirby | Ursula Sweeney | 5 |
| Brian Gleeson | Jimmy Mahon | 5 |
| Conor MacNeill | Diarmuid McWilliams | 5 |
| Hugh O'Conor | Dr Lawrence Moore | 5 |
| Gavin Drea | Michael Collins | 5 |
| Michael Ford-FitzGerald | Harry Butler | 5 |
| Ben Smith | Robbie Lennox | 5 |