| Name | Character | Episodes |
|---|---|---|
| Sean Bean | Father Michael Kerrigan | 6 |
| Louis Hilyer | Chief Inspector McDonald | 6 |
| Lauren Lyle | Chloe Demichelis | 6 |
| Phil Davis | Harry Parkinson | 6 |
| Aisling Loftus | P.C. Dawn Morris | 6 |
| Mark Stanley | P.C Andrew Powell | 6 |
| Adrian Dunbar | Father Peter Flaherty | 6 |
| Eileen Nicholas | Nan | 6 |
| Paul Copley | Joe Kerrigan | 6 |
| Neil Bell | Cash Switchers Man | 6 |
| Naomi Radcliffe | Pauline Pickering | 6 |
| Paula Malcomson | Roz Demichelis | 6 |
| Anna Friel | Christina Fitzsimmons | 6 |
| Danny Sapani | Daniel Martin | 6 |
| Ned Dennehy | Carl McKenna | 6 |
| Michael Higgs | Senior Police Officer | 6 |
| Steve Evets | Football Manager | 6 |
| Colin Mace | Norman Collins | 6 |
| Tony Hirst | Sgt Dennis Kilcaid | 6 |
| Faye McKeever | Caroline Powell | 6 |
| Alan McKenna | Tom Fitzsimmons | 6 |
| Steve Garti | Eddie Kerrigan | 6 |
| Muna Otaru | Helen Oyenusi | 6 |
| Robert Gillespie | Father Matthew | 6 |