Guest Stars Oscar Unsworth as Rhodri Howells Harry Unsworth as Rhodri Howells Mark Lewis Jones as Steve Baldini Aneirin Hughes as Tom Howells Bradley Freegard as Evan Howells Alex Harries as Arthur Davis Catherine Ayers as Lisa Connors Eiry Thomas as DI Susan Williams Betsan Llwyd as Delyth Lloyd Anastasia Hille as Gael Reardon Aimee-Ffion Edwards as Madlen Vaughan Rhashan Stone as DI Laurence Breeze Martha Bright as Angie Baldini Brochan Evans as Dyfan Vaughan Rebecca Harries as Hannah Lewis Alun ap Brinley as Geraint Jernigan Charlie Spring as Hyfforddwr Bocsio Owen Arwyn as Shane Reardon Iestyn Jones as Emrys Huws Lukasz Biela as Perchennog Odessa Foods Boryana Manoilova as Diana Stefaniuk