Guest Stars Tomás Ó Súilleabháin as Ronan Donaghue Colin O'Donoghue as Conor Elliot Hilary Reynolds as Aideen Boylan Ryan Andrews as Ian Smith Darragh Kelly as Niall Boylan Leanna Duke as Aoife Smith Liam Carney as Franny McGowan Mairead Devlin as A&E Doctor Patricia Martin as Joan Madden Sam Mulcahy as Phil Cody Cal Kenealy as Martin Tierney Siraj Zaidi as Pharmacist Paul Walker as Ronan's Partner David Keoghan as Paramedic Malachy McKenna as Larry Georgina Miller as Ronan's Nurse Jody O'Neill as Carina Eileen O'Sullivan as May Mark Van Den Bergh as Dr. King Vivienne Long as Lillian Sonia Kelly as Anaesthetist Michael Sheehan as Dylan