Guest Stars Saoirse Ronan as Rhiannon Geraghty Lesley Conroy as Kathleen Roche Garrett Keogh as Martin Geraghty Rory Keenan as Michael Eva Bartley as Polly Tatianna Ouliankina as Natalia Riabushkin Ian McElhinney as Joseph McGarry Jake Williams as Barry Geraghty Chris Newman as Tommy Geraghty Neilí Conroy as Sorcha Geraghty Liam Carney as Callum Connell Emma Colohan as Alannah Geraghty Janet Moran as Molly Paul Ronan as Agitated Man Frank Coughlan as David Mitchum Alexandra McGuinness as Hotel Receptionist