Guest Stars Saoirse Ronan as Rhiannon Geraghty Lesley Conroy as Kathleen Roche Garrett Keogh as Martin Geraghty Keith Duffy as Paul Dunne Barbara Adair as Marion Stapleton Jake Williams as Barry Geraghty Denis Conway as Liam Quinn Luke Griffin as Niall Gallagher Deirdre O'Kane as Rosie Quinn Aidan Kelly as Dermot Fleming Sarah Bolger as Janie Quinn Enda Kilroy as Mr. Campbell Sarah Burke as Helen Berts Folan as Dada Carroll