Guest Stars Seamus O'Hara as Mackers (Belfast Project) Judith Roddy as Jean McConville Martin McCann as Wee Pat Co Starring Emily Healy as Helen McConville Rylee Neilly Large as Michael McConville Lennox Loughran as Tucker McConville Ava-Rose Gallagher as Agnes McConville Conor Trainor as Jim McConville Matthew Murphy as Billy McConville Isaac Heslip as Archie McConville Aidan Kelly as Intruder Four Bernadette Brown as Intruder Two Keith McErlean as Seamus McKendry Michael Condron as Deckie Warren Rusher as Intruder One Frank Laverty as Marty Gerard Jordan as Frank Paul Mallon as Older Michael McConville Tony Devlin as Older Jimmy Eoin Lynch as Reporter David Ganly as Chief Inspector Aoife Hughes as Daughter One Raymond Waring as Sinn Fein Man Carol Moore as Grandmother Charlotte McCurry as Allison Morris Leah McCarron as Daughter Two Fionnghuala Page as Granddaughter Valene Kane as Hannah Hanlon Matthew Whelan as Older Danny Tracy Coogan as Reporter Sally Guinness as Female Guard Andrew Macklin as Policeman Seamus Casey as DUP Member Brian Milligan as Detective Stevens