Twins Alfie and Elise find a magical Wish Watch on Christmas Eve and are swept by the Wish Collector into the musical Land of Sometimes, where they learn that wishes have consequences.
| Actor | Role |
|---|---|
 Ewan McGregorThe Wish Collector (voice) | The Wish Collector (voice) |
 Helena Bonham CarterMediocris (voice) | Mediocris (voice) |
 Alisha WeirElise (voice) | Elise (voice) |
 Andrei ShenAlfie (voice) | Alfie (voice) |
 Mel BrooksThe Postman (voice) | The Postman (voice) |
 Gregory GudgeonMr. Smaller Than Small (voice) | Mr. Smaller Than Small (voice) |
 Terry JonesThe Wish Watch (voice) | The Wish Watch (voice) |
| RRuby TurnerMrs. Blip (voice) | Mrs. Blip (voice) |
 Jessica HenwickMother (voice) | Mother (voice) |
 Stefan Ashton FrankThe Guardian (voice) | The Guardian (voice) |
 Asa ButterfieldThe Lad With The Flying Feet (voice) | The Lad With The Flying Feet (voice) |
| CCallum CallahanFather / Talking Doors / Purple Sheep / SpringDoncs (voice) | Father / Talking Doors / Purple Sheep / SpringDoncs (voice) |
 Trevor Dion NicholasThe River Slouch Sling (voice) | The River Slouch Sling (voice) |