Stephen Fry Sir Simon de Canterville (voice) Hugh Laurie Grim Reaper / Gardener / Swordsman / Monster / Old Duke (voice) Freddie Highmore Henry Duke of Cheshire (voice) Emily Carey Virginia Otis (voice) Imelda Staunton Mrs Umney (voice) Meera Syal Lucretia Otis (voice) David Harewood Hiram Otis (voice) Miranda Hart Algernean Van Finchley (voice) Toby Jones The Reverend Chasuble (voice) Bill Lobley Lord Monroe (voice) Elizabeth Sankey Lady Eleanor de Canterville / Lady Erlynne / Guests (voice) Keiron Self Professor Borsakov / Guests (voice) Giles New The Colonel / Guests (voice) Georgia Small Marjorie Fairfax / Guests (voice)