Charles Martin Smith Director, Writer, Executive Producer Charlie Cox Ian Hamilton Actor Kate Mara Kay Matheson Actor Billy Boyd Bill Craig Actor Ciaron Kelly Alan Stuart Actor Robert Carlyle John MacCormick Actor Brenda Fricker Mrs. McQuarry Actor Pauline King Jen Actor Stephen McCole Gavin Vernon Actor Ian Hamilton Writer Andrew Boswell Producer Rob Merilees Producer Victor Loewy Executive Producer Michael S. Murphey Executive Producer Mychael Danna Original Music Glen Winter Cinematographer Fredrik Thorsen Film Editing Tom Sayer Production Design Andy Thompson Art Director Trisha Biggar Costume Design Grace Hartley Executive Producer Carole Sheridan Executive Producer John Hubbard Casting Ros Hubbard Casting