Guest Stars Aisling Franciosi as Phoebe Griffin Brian Gleeson as Sinclair Stanley Townsend as Inspector Hackett Nick Dunning as Malachy Griffin Sara Stewart as Rose Crawford Frank O'Sullivan as Davy Donald Sumpter as Josh Crawford Aoibhínn McGinnity as Delia Catherine Steadman as Claire Stafford Peter Coonan as Brendan Boyle Jane McGrath as Maisie Andy Kellegher as Costigan's Man Shane Taylor as Andy Stafford Diarmaid Murtagh as McCoy Deirdre Donnelly as Sister Dominic Pat Laffan as Costigan Gary Egan as Costigan's Man Brid Brennan as Dolly Moran Lesa Thurman as Sister Stephanus Janet Moran as Brenda Ruttledge Tim Dillard as Trucker Garrett Lombard as Father Harkins Anne Gill as Deirdre