Guest Stars Billy Jenkins as Charles Shelby Pauline Turner as Frances Orla McDonagh as Ruby Shelby Callum Booth-Ford as Karl Thorne John O'Gorman as Johnny the Prison Guard Aneurin Barnard as Doctor Holford Grégory Fitoussi as Jean Claude Julian Moore-Cook as Pat Peter Coonan as Connor Dunn Adam Best as Sam Ryan Assaad Bouab as Henri Ciarán Owens as O'Donnell Shashi Rami as Dot Kelly Franc Bruneau as Police Commissioner Stefan Healy as Gilly Ray Darragh O'Toole as Liam Ciaran Clancy as Joe Ray Jack Parr as Dougie Bill Jason Williamson as Lazarus Tanya-Loretta Dee as Mother David Chabeaux as Holford's Workman