Guest Stars Simon O'Gorman as Billy Flanagan Saoirse Ronan as Rhiannon Geraghty Ruth McCabe as Mary Geraghty Garrett Keogh as Martin Geraghty Rory Keenan as Michael Eva Bartley as Polly Sean Flanagan as Sean Connell Ian McElhinney as Joseph McGarry Jake Williams as Barry Geraghty Chris Newman as Tommy Geraghty Ruth Bradley as Moya Cassidy Neilí Conroy as Sorcha Geraghty Barbara Adair as Old Woman Liam Carney as Callum Connell Emma Colohan as Alannah Geraghty Enda Kilroy as Disgruntled Man Sabina Brennan as Nervy Young Woman Regan O'Brien as Nurse