Kieran Prendiville Creator, Writer Stephen Tompkinson Father Peter Clifford Actor Dervla Kirwan Assumpta Fitzgerald Actor Tony Doyle Brian Quigley Actor Niall Toibin Father MacAnally Actor Gary Whelan Brendan Kearney Actor Frankie McCafferty Donal Docherty Actor Joe Savino Liam Coghlan Actor Deirdre Donnelly Siobhan Mehigan Actor Aine Ni Mhuiri Kathleen Hendley Actor Owen Roe Sean Dooley Guest Star Aiden Grennell Mr Bradley Guest Star John Olohan Gerard Lenihan Guest Star James Nesbitt Leo McGarvey Guest Star Lena Headey Jenny Clark Guest Star Oliver Maguire Mckenna Guest Star Luke Griffin Daniel Guest Star Joe Gallagher Walter Dargan Guest Star Anthony Brophy Edso Guest Star Robert Cooper Executive Producer Tony Garnett Executive Producer Conor Harrington Executive Producer Alan Moloney Executive Producer Joy Lale Producer Paul Harrison Director John Forte Writer Richard Standeven Director