Guest Stars Catherine Walker as Alice O'Brien Simon O'Gorman as Billy Flanagan Tomás Ó Súilleabháin as Ronan Donaghue Colin O'Donoghue as Conor Elliot Ryan Andrews as Ian Smith Leanna Duke as Aoife Smith Keith McErlean as Adam Lesley Conroy as Kathleen Roche Keith Duffy as Paul Dunne Mairead Devlin as A&E Doctor Michelle Donnelly as Mary Cooke Miriam McKenna as A&E Nurse 1 Marcus Lamb as Dermot Katie Kirby as Sarah Jonathan Sheerin as Paramedic 1 Jeff Kennedy as Paramedic 2 James Mulkerrins as A&E Nurse 2
