Guest Stars Katelyn Rose Downey as Caitlin Mohan Aidan McCann as Niall Mohan Aoibhéann McCann as Katie Ryan Rhys Mannion as Derek Mohan Nathara Dayananda as Emma Wilson Grace Collender as Doireann Carrick Kevin Trainor as Martin Kelly Trevor Kaneswaran as Matt Wilson Benjamin Bergin as Billy Ryan Maeron Libomi as Luke Youssef Quinn as Baxter Oscar Nolan as Logan Seán Duggan as Garda Pat O'Connor Niall Bishop as Rory Lynch Breffni Clack voices Radio Presenter Tara Cooney Ray Wheafer as Garda Pat O'Neill Joe Rooney as Mr. Sweeney (Bus Driver) Luke Griffin as Superintendent Colin O'Connor Colm O'Brien as Sean McNair Aibidh Condren as Sinead Bernadette Carty as Detective Maria Gillespie Ailbhe Cowley as Zelma Permeti Caitriona Ennis as Mary Hilary Bowen-Walsh as Carol Meadhbh Maxwell as Miss Walsh Aisling Doyle as Girl on Bus Bairbre O'Toole as Mrs. Clark Rian Sheridan as Eamon Luke Rabbitte as Shelly's Brother Aiyanna Whitelaw as Young Shelly John Downes as Shelly's Father
