Charles Sturridge Director Florence Hoath Elsie Wright Actor Elizabeth Earl Frances Griffiths Actor Paul McGann Arthur Wright Actor Phoebe Nicholls Polly Wright Actor Peter O'Toole Sir Arthur Conan Doyle Actor Harvey Keitel Harry Houdini Actor Bill Nighy Edward Gardner Actor Bob Peck Harry Briggs Actor Tim McInnerny John Ferret, a Reporter Actor Albert Ash Writer Tom McLoughlin Writer Ernie Contreras Writer Paul Tucker Executive Producer Wendy Finerman Producer Bruce Davey Producer Zbigniew Preisner Original Music Michael Coulter Cinematographer Peter Coulson Film Editing Mary Selway Casting Sarah Trevis Casting Trevor Hoath Casting Michael Howells Production Design Sam Riley Art Director Totty Whately Set Decoration Shirley Russell Costume Design