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Albey Brookes as John (voice) |
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Jane Horrocks as Mum (voice) |
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Timothy Spall as Dad (voice) |
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Alison Steadman as Auntie Barbara (voice) |
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Archie Panjabi as Leila (voice) |
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David Haig as Park Keeper (voice) |
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Emma Tate as Miss Gibson (voice) |
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Tina Gace as Ivor (voice) |
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Nina Miranda as Ivor (singing voice) |
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Paul Rogan as (voice) |
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Adrienne Posta as (voice) |
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Chris Grant as (voice) |
| Visual Effects | Kevin Grady | Animation |
| Visual Effects | Paul Hardman | Animation |
| Art | Sue Tong | Art Direction |
| Visual Effects | Rachel Feasey | Animation |
| Visual Effects | Jan Johnston | Animation |
| Visual Effects | Steve Austin | Animation |
| Visual Effects | Andy Blazdell | Animation |
| Production | Alex Jennings | Production Manager |
| Visual Effects | Denise Dean | Animation |
| Production | John Coates | Executive Producer |
| Visual Effects | Gary Andrews | Animation |
| Art | Janet Archer | Background Designer |
| Visual Effects | Lydia Adams | Animation |
| Visual Effects | Eleanor Jackson | Animation |
| Visual Effects | Dave Livesey | Animation |
| Sound | David Peacock | Sound Recordist |
| Sound | Nitin Sawhney | Music |
| Art | Hilary Audus | Storyboard Artist |
| Visual Effects | Edoardo Cavalli | Animation |
| Visual Effects | Kate Fortune Jones | Animation |
| Sound | Paul Roberts | Sound Mixer |
| Visual Effects | Alex Cassels | Animation |
| Visual Effects | Terry Castellani | Animation |
| Visual Effects | Vanessa Clegg | Animation |
| Art | Michael Gabriel | Background Designer |
| Visual Effects | Les Gibbard | Animation |
| Visual Effects | Sue Plummer | Animation |
| Visual Effects | Elroy Simmons | Animation |
| Visual Effects | Sharon E. Smith | Animation |
| Visual Effects | Gavin McCue | Animation |
| Visual Effects | Paul Stone | Animation |
| Art | Sue Tong | Background Designer |
| Visual Effects | Ben Potts | Animation |
| Visual Effects | Richard Nye | Animation |
| Visual Effects | Kenny Robinson | Animation |
| Visual Effects | Gerry Gallego | Animation |
| Visual Effects | Andy Price | Animation |
| Art | Rachael Stedman | Background Designer |
| Visual Effects | Pauline Trapmore | Animation |
| Visual Effects | Sarah Vincent | Animation |
| Visual Effects | Dave Webster | Animation |
| Writing | Raymond Briggs | Writer |
| Directing | Hilary Audus | Director |
| Visual Effects | Richard Nye | 2D Artist |
| Production | Paul Madden | Producer |
