 | Rebecca Hall als Florence Cathcart |
 | Dominic West als Robert Mallory |
 | Imelda Staunton als Maud Hill |
 | Isaac Hempstead-Wright als Tom |
 | Lucy Cohu als Constance Strickland |
 | Cal MacAninch als Freddie Strickland |
 | John Shrapnel als Reverend Hugh Purslow |
 | Diana Kent als Harriet Cathcart |
 | Richard Durden als Alexander Cathcart |
 | Alfie Field als Victor Parry |
 | Tilly Vosburgh als Vera Flood |
 | Ian Hanmore als Albert Flood |
 | Andrew Havill als George Vandermeer |
 | Anastasia Hille als Dorothy Vandermeer |
 | Joseph Mawle als Edward Judd |
 | Shaun Dooley als Malcolm McNair |
 | Steven Cree als Sergeant Evans |
 | Felix Soper als Julian Dowden |
 | Sidney Johnston als John Franklin |
 | Spike White als Alistair Howell |
| Charlie Callaghan als Chris Hartley |
| James Kirkham als William Ramsbottom |
| Ewan Andrew Walker als Richard McGorian |
 | Adam Thomas Wright als Max Tebbitts |
| Ben Greaves-Neal als Child Impostor |
 | Daniel Pirrie als Captain Mills |
| Nicholas Amer als Edgar Hirsthwit |
 | Nick Murphy als Teacher 1 |
| Neil Broome als School Master (uncredited) |
| Robert Wischhusen-Hayes | Set Decoration |
| Jon Henson | Production Design |
| Nick Murphy | Director |
| Daniel Pemberton | Original Music Composer |
| Victoria Boydell | Editor |
| Stephen Volk | Screenplay |
| Shaheen Baig | Casting |
| Caroline Harris | Costume Design |
| Nick Murphy | Screenplay |
| Dave McKay | Helicopter Camera |
| Neal Champion | Special Effects |
| Helene Lenszner | Location Manager |
| Lucy Enfield | Script Supervisor |
| Cindy Thomson | Location Manager |
| Fiona Gavin | Art Direction |
| Alex Bailey | Still Photographer |
| Suzanne Noble | Publicist |
| Abbi Collins | Stunt Coordinator |
| Mike Scott | Steadicam Operator |
| Peter Robertson | Steadicam Operator |
| Emma Pike | Production Manager |
| Sean Farrow | Visual Effects Supervisor |
| Ian Johnson | Unit Publicist |
| Eduard Grau | Director of Photography |
| Paul Edwards | Steadicam Operator |
| Nicki McCallum | Supervising Art Director |
| James Clarke | Digital Intermediate |
| Daniel Phillips | Hair Designer |
| Tapio Salmi | Hair Supervisor |
| Sandrine Mugglestone | Daily Makeup & Hair |
| Neil Maguire | Storyboard Artist |
| Sarah Curtis | Producer |
| Reno Antoniades | Legal Services |
| Harriet Edmonds | Costume Standby |
| Fiona Dickson | Draughtsman |
| Alex Howe | First Assistant Camera |
| Tom Miller | Still Photographer |
| Emelie Nilsson | Digital Compositor |
| Lucy Tanner | Visual Effects Coordinator |
| David Tyler | Gaffer |
| Andy Duncan | Gaffer |
| Paul Cotterell | ADR Mixer |
| David Sjodin | Digital Compositor |
| Simon Leech | Digital Compositor |
| Julia Stannard | Producer |
| Maite Astiz | Second Assistant Camera |
| David M. Thompson | Producer |
| Stuart Fyvie | Colorist |
| Ashley McFarlane | Floor Runner |
| Tapio Salmi | Makeup Supervisor |
| Helen Allingham | Art Department Assistant |
| George McKay | Painter |
| Chris Chandler | Property Master |
| Jim Elliott | Property Master |
| Colin Nicolson | Sound Mixer |
| Martin Palmer | Electrician |
| Ben Brazier | Foley Editor |
| John Laurie | Costume Standby |
| Peter Eardley | Production Accountant |
| Jenny Williams | Production Coordinator |
| Toby Ford | First Assistant Director |
| Derek Fraser | Construction Manager |
| Sue Harding | Foley Artist |
| Anna Lau | Costume Supervisor |
| Vanessa Baker | ADR Voice Casting |
| Graham Hunter | Assistant Costume Designer |
| Angela Stanley | Digital Compositor |
| Robert Brazier | Foley Recordist |
| Mary Brehony | Legal Services |
| Steven Moore | Production Runner |
| Kara Ramsay | Standby Art Director |
| Kevin Robertson | Electrician |
| Robert Dibble | First Assistant Camera |
| Aisha Bywaters | Casting Associate |
| Scott Goulding | Online Editor |
| Julie Dorrat-Keenan | Makeup Artist |
| Iain Geddes | Painter |
| Mark Appleby | ADR Mixer |
| Billy Hinshelwood | Legal Services |
| Sam Curren | Painter |
| Ray Brown | Electrician |
| Ian Wilkinson | ADR Editor |
| Rowena Wilkinson | Foley Artist |
| James Harrison | Sound Effects Designer |
| Lea Morement | Assistant Editor |
| Colin Nicolson | Production Sound Mixer |
