A fairytale thriller film set one night in a 1930's London theatre where all is not what it seems.
| Actor | Role |
|---|---|
 Benedict CumberbatchHenry Clark | Henry Clark |
 Lindsay DuncanIce Queen | Ice Queen |
 Jim CarterThe Compere | The Compere |
 Sophie HunterAnnabel Blythe-Smith | Annabel Blythe-Smith |
 Kai RobertsSpirit | Spirit |
 Anna AndresenThe Mermaid | The Mermaid |
 Esmé BiancoMother | Mother |
 Stephen Campbell MoorePeter Blythe-Smith | Peter Blythe-Smith |
| MMichael EllisChimney Sweep | Chimney Sweep |
 Barbara FlynnMrs. Argyle | Mrs. Argyle |
| BBerkan HalilGhost | Ghost |
 Mona HammondDeath's Wife | Death's Wife |
| GGeorgie HewittElizabeth Clark | Elizabeth Clark |
| CCharlie HollwayAce of Hearts | Ace of Hearts |
 Kevin HowarthJimmy Harrison | Jimmy Harrison |
 Annabelle LanyonQueen of Hearts | Queen of Hearts |
| AAmanda MorganThe Shepherdess | The Shepherdess |
| MMariko NagataJapanese Sun | Japanese Sun |
| MMatt NationThe Major | The Major |
 Simon Lee PhillipsOrlando | Orlando |
| LLee RavitzFirst Fisherman | First Fisherman |
 Tom SoThe Chinaman | The Chinaman |
 Natasha SparkesGhost | Ghost |
 Charity WakefieldGrace | Grace |