Ed Whitmore Creator, Writer, Executive Producer Philip Glenister D.C.I. Paul Bethell Actor Steffan Rhodri D.C. Phil Bach Actor Scott Arthur Young D.C.I Paul Bethell Actor Sion Davies Young D.C. Phil Bach Actor Nia Roberts Karina Bethell Actor Gareth John Bale D.C. Geraint Bale Actor Rhys Rusbatch Young Dai Williams Guest Star Sharon Morgan Pat Williams Guest Star Richard Corgan DS Chris Wynne Guest Star William Thomas Denver Hughes Guest Star Marc Evans Director Hannah Thomas Producer Ed Talfan Executive Producer Jonathan Hill Executive Producer