Guest Stars Oscar Unsworth as Rhodri Howells Harry Unsworth as Rhodri Howells Mark Lewis Jones as Steve Baldini Aneirin Hughes as Tom Howells Hannah Daniel as Cerys Jones Bradley Freegard as Evan Howells Demi Letherby as Alys Howells Lacey Jones as Megan Howells Catherine Ayers as Lisa Connors Alex Harries as Arthur Davis Eiry Thomas as DI Susan Williams Betsan Llwyd as Delyth Lloyd Rhian Morgan as Marion Howells Anastasia Hille as Gael Reardon Aimee-Ffion Edwards as Madlen Vaughan Rhashan Stone as DI Laurence Breeze Brochan Evans as Dyfan Vaughan Martha Bright as Angie Baldini Steffan Rhodri as Y Barnwr Gwyn Daniels Rebecca Harries as Hannah Lewis Rhian Blythe as Anya Flye Richard Lynch as Hayden Swancott QC Billy Hartman as Gemydd Crystal Yu as Dr. Sarah Collins Rhodri Sion as Madog Jones Daniel Edwards as Gard
