Guest Stars Lydia McGuinness as Peggy Mahon Brian McCardie as James Connolly Millie Donnelly as Gracie Mahon Jordanne Jones as Minnie Mahon Steve Wall as Detective Coleman Gus McDonagh as Monsignor Mulcahy Jaelynne Wallace Ruane as Sadie Mahon Niamh Cusack as Nellie Cosgrave Laurence O'Fuarain as Desmond Byrne Joanne Brennan as Dr. Kathleen Lynn Ryan McAllister as Sylvester the Butler Camille O'Sullivan as Countess Constance Marklevicz Sebastian Thommen as Michael Collins Fred McCloskey as Sergeant McAuley Barry McGovern as Archbishop William Walsh Keith Patrick Byrne as Barman Mark Lambert as Brigadier Blackader Stephen Mullan as Eamon de Valera Elva Trill as Miss Esme Quinn Andrei Alén as Captain Heathcote
