Guest Stars Amy Molloy as Private Sarah Jane Damien Molony as Stephen Rea Co Starring Emily Healy as Helen McConville Rylee Neilly Large as Michael McConville Isaac Heslip as Archie McConville Art Parkinson as Francis Conor Trainor as Jim McConville Lennox Loughran as Tucker McConville Ava-Rose Gallagher as Agnes McConville Matthew Murphy as Billy McConville Cùàn Hosty-Blaney as Chalkie Aidan Kelly as Intruder Four Sarah Gordon as Susie McConville Lloyd Hutchinson as Dáithí Rebecca Finch as Gate Agent Mirren Mack as Roisin Mark Field as Reporter Gina Costigan as Lily Ethan Moorhouse as Edgar James Doherty as Chief Inspector Dempsey Bovell as Tommy Neil Grainger as Police Operator Derek Ezenagu as Traffic Cop Josephine Rogers as Security Agent Two Antony Eden as Cop Three David Nolan as Customs Agent Dan Mullane as Priest at Divis Darren Clarke as Good Samaritan Antoinette Morelli as Social Worker Two Matthew Flynn as Policeman in Booking Room Leon Williams as Cop Two Meryl Griffiths as Art Lover Alyson Spiro as British Theatre Goer Laurence Saunders as Tall Cop Conor Doran as IRA Caller Owen Mulhall as Short Cop Paula McFetridge as Social Worker One Marlon Roberts as Security Agent One Nick Hardie as Soldier Bert Seymour as Barrister