 | Christina Ricci als Cassie Grant |
 | Ioan Gruffudd als Dan Blakeley |
 | Stephen Dillane als Simon Kirkman |
 | Kerry Fox als Marion Kirkman |
 | Robert Hardy als Bishop |
 | Simon Russell Beale als Luke Fraser |
 | Harry Forrester als Michael Kirkman |
 | Jessica Mann als Emma Kirkman |
 | Peter McNamara als Frederick Michael Argyle |
 | Peter Wight als Dave Elford |
 | Siobhan Hewlett als Janie |
 | Oliver Chris als Brett |
 | David J. Curtis als Police Officer |
| Mark Bagnall als The Gathering |
 | Mackenzie Crook als The Gathering |
 | Anatol Yusef als The Gathering |
| Richard Syms als Churchman |
 | Malcolm Terris als The Mayor |
 | Natalie Press als Female Van Pusher |
 | Roy Evans als The Gathering |
| Clare Bloomer als The Gathering |
| Paul Hamilton als The Gathering |
| Richard Evans als The Gathering |
| Brian Gilbert | Director |
| Anthony Horowitz | Screenplay |
| Pippa Cross | Producer |
| Marc Samuelson | Producer |
| Peter Samuelson | Producer |
| Anne Dudley | Original Music Composer |
| Martin Fuhrer | Director of Photography |
| Masahiro Hirakubo | Editor |
| Lee Sheward | Stunt Coordinator |
| Chris Plevin | Camera Operator |
| Donald Paul Pemrick | Casting |
| Terri Taylor | Casting |
| Nic Ede | Costume Design |
| Adam Dale | Camera Operator |
| Caroline Amies | Production Design |
| Frank Walsh | Art Direction |
| Nikita Rae | Hairstylist |
| Julie Wright | Makeup Artist |
| Emily Lutyens | Art Department Assistant |
| Guy Bradley | Assistant Art Director |
| Stelios Polychronakis | Assistant Art Director |
| Luke Furlonger | Sculptor |
| Alex Hudd | Dolby Consultant |
| Albert Bailey | Sound Recordist |
| Andy Kennedy | Sound Effects Editor |
| Mike Dowson | Sound Re-Recording Mixer |
| Mark Taylor | Sound Re-Recording Mixer |
| Stefan Henrix | Supervising Sound Editor |
| Stefan Drury | Visual Effects Producer |
| Ed Hawkins | Visual Effects Supervisor |
| Gregory Salter | Visual Effects Supervisor |
| Philip Sindall | Camera Operator |
| Peter Versey | Camera Operator |
| Stuart Howell | Steadicam Operator |
| Liam Daniel | Still Photographer |
| Stewart Hadley | Gaffer |
| Roy Furness | Rigging Gaffer |
| Camilla Fiddian-Green | Costume Supervisor |
| Neil Williams | First Assistant Editor |
| Gary Skull | Transportation Coordinator |
| Sarah Garner | Script Supervisor |
| Clive Miles | Location Manager |
| Emma Pill | Location Manager |
| Graham Smith | Unit Publicist |
| Julia Jones | Unit Publicist |
| Andie Derrick | Foley |
| Jo McLaren | Stunts |
| Peter Burgis | Foley Artist |
| Lucy Allen | Stunt Double |
| James Reggel | Assistant Accountant |
