 | Liam Cunningham als Six |
 | Niall Greig Fulton als Dr. Duncan Hume |
 | Pollyanna McIntosh als PC. Rachel Heggie |
 | Douglas Russell als Sgt. MacReady |
 | Bryan Larkin als PC. Jack Warnock |
 | Hanna Stanbridge als PC. Jennifer Mundie |
 | Brian Vernel als Caesar Sargison |
 | James McCreadie als Mulvey |
 | Jonathan Watson als Ralph Beswick |
| Sophie Stephanie Farmer als Young Rachel |
| Holly Beattie als Car Crash Victim |
| Katie Gilbourne als Mrs. Hume |
| Max McCarthy als Dr. Hume's Son |
| Ellen Keaveney als Dr. Hume's Daughter |
| Brian O'Malley | Director |
| Fiona Watson | Writer |
| David Cairns | Writer |
| Steve Lynch | Original Music Composer |
| Eddie Dick | Producer |
| James Lapsley | Production Design |
| Alison Crosbie | Casting |
| Tony Kearns | Editor |
| Nick Munday | Executive Producer |
| Chris Hainsworth | Executive Producer |
| Piers McGrail | Director of Photography |
| Jamie MacWilliam | Art Direction |
| Lee Brazier | Executive Producer |
| James Daly | Executive Producer |
| John McDonnell | Producer |
| Brendan McCarthy | Producer |
| Finlay McLay | Costume Design |
| Stephanie Lynne Smith | Prosthetic Designer |
| Stephanie Lynne Smith | Makeup Designer |
| John Burns | First Assistant Director |
| Gerry Johnston | Pyrotechnician |
| Pete Murphy | Location Manager |
| Pete Murphy | Production Manager |
| Fran Keveney | Line Producer |
| Amanda Ferriter | Production Coordinator |
| Angus Finlayson | Second Assistant Director |
| Lorna Larkin | Assistant Director |
| Christine Ayoub | Focus Puller |
| Richard Lacey | Clapper Loader |
| Donald MacSween | Digital Imaging Technician |
| Jamie Whitmarsh | Grip |
| Bryan Larkin | Second Unit Director |
| Fergus Long | Focus Puller |
| Richard Kendrick | Second Unit Director of Photography |
| Eva Kelly | Script Supervisor |
| Michelle Conway | Script Supervisor |
| Con Dempsey | Gaffer |
| Paul Noble | Electrician |
| Alastair Mason | Sound Recordist |
| Zander Mayor | Boom Operator |
| Phil Diamond | Boom Operator |
| Heather Donnelly | Art Department Assistant |
| Gordon Rogers | Construction Manager |
| Chris McMillan | Property Master |
| Jade Gavin | Wardrobe Assistant |
| Jessie Deol | Makeup Artist |
| James McCreadie | Fight Choreographer |
| Joe Condren | Stunt Coordinator |
| Joe Condren | Armorer |
| Martin Maguire | Still Photographer |
| Maura Murphy | Post Production Coordinator |
| Dave Hughes | Colorist |
| Robert O'Connor | Assistant Editor |
| Kieran Lynch | Sound Supervisor |
| Morgan Carparelli | Dialogue Editor |
| Carl Cullen | Foley Editor |
