Guest Stars Barry O'Connor as Liam Blake Conor Delaney as Cormac Jameson Chris Newman as Jack Sweeney Cillian O'Gairbhi as Stephen Wills Hugo Seale as Peter Morris Michelle Beamish as Fiona Brady Joanne Brennan as Sister Elisabeth Steve Gunn as Anthony Collins Tatja Seibt as Abbess Anna Kathy Monahan as Sally O'Keefe Tara Breathnach as Mary Reagan Dave Duffy as William Joyce Rickie O'Neill as Sam Smith Aisling Reid as Oona O'Connor