Guest Stars Robert Mitchell as Fitz Rachel Petladwala as DC Shakir Paul Reid as DC Maguire Adam Walker-Kavanagh as Garda Brady Liam Heffernan as Patrick Gorman Flynn Gray as Young Boyd Siobhán O'Kelly as Rosie Boyd Callen Costello as Daniel Boyd Naoimh Whelton as Mary Farrell Craig McGinlay as Rev Adam Mason Doireann May White as Orla Cailum Carragher as DS Armstrong John Olohan as Dermot Ivy Brereton as Ellie Boyd Hugh O'Conor as CS James Casey Charlotte Bradley as CS Flynn Rachael Dowling as Dr Ormonde Sophie Vavasseur as Aisling Shane Lynch as Paddy Doyle Barry John Kinsella as Ian Charlie Maher as Joe Dooley Jack Hickey as Sean Sarah Carroll as Roisin Ciaran McMahon as Captain Mella Carron as Young Woman Pauline O'Driscoll as Annie Doyle Steven Calvert as Bouncer Juliette Crosbie as Niamh Tara Breathnach as Cara Dooley Sorcha Fahy as Sinead Connelly Elga Fox as Solicitor Rhea Rose Rodillas as Charlotte Ali Hardiman as Holly