Guest Stars Llyr Ifans as Gareth Thomas Sioned Dafydd as Elin Sian Reese-Williams as Manon William Thomas as Robert Owen Richard Lynch as Supt John Powell Sharon Morgan as Eiry Ieuan Rhys as Paul James Eleri Morgan as Shelley Owen Arwyn as Llew Morris Gary Hoptrough as Liam Hughes Rhian Blythe as Bethan Morris Brochan Evans as Bryn Morris Dyfrig Evans as Dafydd Morris