 Florence HoathElsie Wright | Elsie Wright |
| EElizabeth EarlFrances Griffiths | Frances Griffiths |
 Paul McGannArthur Wright | Arthur Wright |
 Peter O'TooleSir Arthur Conan Doyle | Sir Arthur Conan Doyle |
 Harvey KeitelHarry Houdini | Harry Houdini |
 Phoebe NichollsPolly Wright | Polly Wright |
 Bill NighyEdward Gardner | Edward Gardner |
 Tim McInnernyJohn Ferret, a Reporter | John Ferret, a Reporter |
 Joseph MayHoudini's Assistant | Houdini's Assistant |
 Peter MullanSergeant Farmer | Sergeant Farmer |
 Anna ChancellorPeter Pan | Peter Pan |
| LLara MorganJean Doyle | Jean Doyle |
| AAdam FranksAdrian Doyle | Adrian Doyle |
 Guy WitcherDenis Doyle | Denis Doyle |
 Peter WightNewspaper Editor | Newspaper Editor |
 Anton LesserWounded Corporal | Wounded Corporal |
 Bob PeckHarry Briggs | Harry Briggs |
 Lynn FarleighMrs. Thornton, the Teacher | Mrs. Thornton, the Teacher |
 David CalderHarold Snelling | Harold Snelling |
 Anthony CalfGeoffrey Hodson | Geoffrey Hodson |
 Benjamin WhitrowMr. Binley | Mr. Binley |
 Barbara HicksCity Woman | City Woman |
 Paul PopplewellSecond Soldier | Second Soldier |
| IIna CloughLady Calling to Fairies | Lady Calling to Fairies |
 Tom SturridgeHab, a Fairy | Hab, a Fairy |
 Tom GeorgesonReporter | Reporter |
| AAnna BreconElabigathe, a Fairy | Elabigathe, a Fairy |
| BBill StewartChess MC | Chess MC |
 Mel GibsonFrances' Father (uncredited) | Frances' Father (uncredited) |
 Ali BastianLull, a fairy | Lull, a fairy |
