| Person | Type | Job | Role(s) |
|---|---|---|---|
 Andy Thompson | Crew | Sound | ADR Mixer |
 Barnaby Thompson | Crew | Production | Producer |
Caroline O'Reilly | Crew | Directing | Script Supervisor |
Celestia Fox | Crew | Production | Casting |
Cynthia McCormac | Crew | Art | Set Decoration |
Finola Dwyer | Crew | Production | Producer |
Gary Shoefield | Crew | Production | Executive Producer |
Grenville Horner | Crew | Art | Production Design |
Jill Tandy | Crew | Production | Executive Producer |
 Jonny Campbell | Crew | Directing | Director |
Julie Nightingale | Crew | Costume & Make-Up | Makeup Artist |
Konnie Daniel | Crew | Costume & Make-Up | Makeup Artist |
Linda Wilson | Crew | Art | Set Decoration |
Malcolm Ritchie | Crew | Production | Executive Producer |
Michael Kuhn | Crew | Production | Executive Producer |
 Murray Gold | Crew | Sound | Original Music Composer |
Oral Norrie Ottey | Crew | Editing | Editor |
 Peter Burgis | Crew | Sound | Foley Artist |
Rhona Russell | Crew | Costume & Make-Up | Costume Design |
Robert Farr | Crew | Sound | Sound Re-Recording Mixer |
 Tricia Wood | Crew | Production | Casting |
William Davies | Crew | Production | Producer, Writer |
Alexandra Arlango | Crew | Production | Co-Producer |
Christopher Wyatt | Crew | Art | Art Direction |
James Spring | Crew | Production | Executive Producer |
Paul Carter | Crew | Sound | Foley Editor |
 Ray Santilli | Crew | Production | Executive Producer |
Simon Chaudoir | Crew | Camera | Director of Photography |
Mark Paterson | Crew | Sound | Sound Re-Recording Mixer |
Mark Woolley | Crew | Production | Co-Producer |
 Robert Edwards | Crew | Sound | ADR Recordist |
Darren J. Perry | Crew | Production | Production Assistant |
Steven D. Grothe | Crew | Sound | Sound Mixer |
Colleen Woodcock | Crew | Production | Co-Producer |
Rob Prynne | Crew | Sound | Sound Effects Editor |
James Bennett | Crew | Sound | ADR Recordist |
Andrew Hildebrand | Crew | Production | Co-Producer |
Tinks Reding | Crew | Costume & Make-Up | Makeup Artist |
Kamlan Man | Crew | Art | Art Direction |
 Anthony McPartlin | Cast | Actor | Gary Shoefield |
 Bill Pullman | Cast | Actor | Morgan Banner |
 Bradley Lavelle | Cast | Actor | NY host |
 Cristina Piaget | Cast | Actress | Interviewer |
 David Threlfall | Cast | Actor | Jeffrey |
 Declan Donnelly | Cast | Actor | Ray Santilli |
Gary Shoefield | Cast | Himself | |
Gillian Goodman | Cast | Actress | Seller |
 Götz Otto | Cast | Actor | Laszlo Voros |
 Harry Dean Stanton | Cast | Actor | Harvey |
 Ian Porter | Cast | Actor | Pentagon Officer |
Jeff Harding | Cast | Actor | CIA Agent |
 Jimmy Carr | Cast | Actor | Gary's Boss |
 John Cater | Cast | Actor | Maurice |
 John Shrapnel | Cast | Actor | Michael Kuhn |
 Jonathan Coy | Cast | Actor | Museum Director |
 Jonathan Frakes | Cast | Actor | Self |
 Kevin Breznahan | Cast | Actor | Junior TV Exec |
 Lachele Carl | Cast | Actress | TV News Anchor |
 Lee Oakes | Cast | Actor | Edgar |
Madeleine Moffat | Cast | Actress | Nan |
Miguel Angel Plaza | Cast | Mr. Gonzalez | |
 Morwenna Banks | Cast | Actress | Jasmine |
 Nichole Hiltz | Cast | Actress | Amber Fuentes |
 Omid Djalili | Cast | Actor | Melik |
 Orson Bean | Cast | Actor | Homeless Man |
 Paul Birchard | Cast | Actor | Senior TV Exec |
 Perry Benson | Cast | Actor | Trading Standards Officer |
 Sam Douglas | Cast | Actor | Network President |
 Shane Rimmer | Cast | Actor | Colonel |
 Andrew Greenough | Cast | Actor | Preston |
Julia Bridgeman | Cast | Geek Girl | |
 Luis Soto | Cast | Actor | Peruvian TV Host |
Matthew Blakeley | Cast | Camera Team | |
 Naima Belkhiati | Cast | Actress | French TV Buyer |
Pam Shaw | Cast | Aunty P | |
Peter Rnic | Cast | Actor | The Russian Spy |
Ray Santilli | Cast | Actor | Himself |
 Todd Sherry | Cast | Actor | Flight Attendant |
Winston Thomas | Cast | Zachary | |
Adriana Yanez | Cast | Actress | Stewardess - Argentina |
 Chris Wilson | Cast | Actor | Alien Fan |
Christina Souza | Cast | Stewardess - Mexicana | |
Flor Kent | Cast | Stewardess | |
 Luke Brandon Field | Cast | Actor | Steve |
Peter Willcock | Cast | Actor | Worker at Gary's Office |
Sophia Ellis | Cast | UFO Enthusiast | |
Stephanie Metcalfe | Cast | Doreen | |
 Michael Rouse | Cast | Actor | Young Harvey |
 Martin McDougall | Cast | Actor | Middle Ranking TV Exec |
Mike Blakeley | Cast | Camera Team | |
| Person | Type | Job | Role(s) |
