Guest Stars Michael D'Arcy as Adam Niall Jordan as Peter Savage Ellie O'Halloran as Jamie Rowan Amy Macken as Jessica Devlin Kathy Monahan as Margaret Devlin Barry O'Connor as Cathal Mills Amy Macken as Katy Devlin James Browne as Shane Waters Caoimhe O'Malley as Heather Barbara Brennan as Mrs. Fitzgerald