| Richard Harrington (Tom Mathias) |
| Mali Harries (Mared Rhys) |
| Alex Harries (Lloyd Ellis) |
| Hannah Daniel (DS Sian Owen) |
| Aneirin Hughes (Brian Prosser) |
| Geraint Morgan (Iwan Thomas) |
| Lisa Palfrey (Sioned Jones) |
| Sion Alun Davies (Owain Jones) |
| Gwyneth Keyworth (Beca Jones) |
| Morgan Hopkins (Lyn Edwards) |
| Gwenllian Rhys (Iola Edwards) |
| Llyr Evans (Gareth Thomas) |
| Sian Reese-Williams (Manon) |
| Sioned Dafydd (Elin Rhys) |
| Phylip Hughes (Eurof Daniel) |
| Delyth Wyn (Morfydd) |
| Jacob Ifan (Trystan Meilir) |
| Geraint Lewis (Le Dr. Haydn Blake) |