| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Bill Barretta | Crew | Production | Executive Producer, Teleplay | 2 |
 Brian Henson | Crew | Directing | Director, Executive Producer, Story, Teleplay, Creator | 2 |
 James V. Hart | Crew | Production | Executive Producer, Teleplay, Story | 2 |
 Martin G. Baker | Crew | Production | Producer | 2 |
 Tim Lewis | Crew | Directing | First Assistant Director | 2 |
 Adam Fogerty | Cast | Actor | Lead Warrior | 2 |
 Andrew Grainger | Cast | Actor | Armed Policeman | 2 |
 Anton Lesser | Cast | Actor | Vidas Merlinis | 2 |
Bill Barretta | Cast | Actor | Thunderdell | 2 |
Brian Henson | Cast | Actor | Galaga (voice) | 2 |
 Cyril Shaps | Cast | Actor | Bent Little Man | 2 |
 Daryl Hannah | Cast | Actress | Thespee | 2 |
 Edward Highmore | Cast | Actor | Playground Dad | 2 |
 Freddie Highmore | Cast | Actor | Playground Son | 2 |
 Honor Blackman | Cast | Actress | Jules | 2 |
Iain Rogerson | Cast | Actor | Guard | 2 |
 JJ Feild | Cast | Actor | Young Jack | 2 |
 James Corden | Cast | Actor | Bran - Thunderdell's Son | 2 |
 Jason Thorpe | Cast | Actor | Maitre D' | 2 |
Jerry Harte | Cast | Actor | Board Member | 2 |
 Jim Carter | Cast | Actor | Odin - Member of the Great Council of Mac Slec | 2 |
 Jon Voight | Cast | Actor | Siggy | 2 |
 Jonathan Hyde | Cast | Actor | Dussan | 2 |
 Joseph Long | Cast | Actor | Antonio | 2 |
 Josh Cole | Cast | Actor | Operator #1 | 2 |
 Julia McKenzie | Cast | Actress | Jack's Mum | 2 |
Leo Dolan | Cast | Actor | Construction Foreman | 2 |
 Lisa Kay | Cast | Actress | Security Woman | 2 |
Lolly Susi | Cast | Actress | Miss Gilgrin | 2 |
 Matthew Modine | Cast | Actor | Jack Robinson | 2 |
 Mia Sara | Cast | Actress | Ondine | 2 |
 Nicholas Beveney | Cast | Actor | Cernos | 2 |
 Oliver Ford Davies | Cast | Actor | Dr. Newman | 2 |
 Peter Guinness | Cast | Actor | Hall Cryer | 2 |
 Rachel Shelley | Cast | Actress | Brunette | 2 |
 Richard Attenborough | Cast | Actor | Magog | 2 |
 Richard Cubison | Cast | Actor | Curious Patron | 2 |
 Richard Huw | Cast | Actor | Jack's Father | 2 |
 Roger Morlidge | Cast | Actor | Construction Worker #2 | 2 |
 Rosalind Knight | Cast | Actress | Hag Woman | 2 |
 Tom Ellis | Cast | Actor | Bigger Boy #1 | 2 |
 Vanessa Redgrave | Cast | Actress | Countess Wilhelmina | 2 |
 Vincent Marzello | Cast | Actor | Sprague | 2 |
 Alisdair Simpson | Cast | Actor | Paramedic | 2 |
 Lynda Rooke | Cast | Actress | Hostess | 2 |
Frank Baker | Cast | Actor | Forensic Doctor | 2 |
 Sam Halpenny | Cast | Actor | Taxi Driver | 2 |
 David J. Nicholls | Cast | Actor | Ragnar | 2 |
Marc Goodhall | Cast | Cavern Guard | 2 | |
Mel Cobb | Cast | Journalist | 2 | |
 Roger Blake | Cast | Actor | Giant Thor | 2 |
Carl Pizzie | Cast | Operator #2 | 2 | |
Glen Davies | Cast | Actor | Construction Worker #1 | 1 |
Clare Angelini Heather | Cast | Wedding Guest (uncredited) | 1 | |
Fraser Flintham | Cast | Bigger Boy #2 | 2 | |
| Person | Type | Job | Role(s) | Episodes |
