Guest Stars Harry Unsworth as Rhodri Howells Seren Letherby as Rhodri Howells Oscar Unsworth as Rhodri Howells Demi Letherby as Alys Howells Hannah Daniel as Cerys Jones Mark Lewis Jones as Steve Baldini Lacey Jones as Megan Howells Aneirin Hughes as Tom Howells Eiry Thomas as DI Susan Williams Bradley Freegard as Evan Howells Alex Harries as Arthur Davis Rhian Morgan as Marion Howells Angeline Ball as Gael Reardon Mali Harries as Bethan Price Matthew Gravelle as Terry Price Richard Elfyn as DCI Huw Parry Kizzy Crawford as PC Emma Jones Pinar Ogun as Dr. Meral Alpay Glyn Pritchard as Dewi Glynn Lowri Palfrey as Erin Glynn Nia Roberts as Saran James Shelley Rees as DS Morgan Ryland Teifi as Owens Jenna Preece as Young Girl
