Others have answered this question far better than I could have done. However, I have an audio production of LWW, dramatised by Brian Sibley, in which Stephen Thorne plays Aslan, Maurice Denham Professor Kirke, Rosemary Martin is Jadis, Neil Jeffrey Peter, Abigail Docherty Susan, Henry and Camilla Power as Edmund and Lucy, Norman Bird Mr Tumnus, Stephen Harrold as the dwarf, David Goodland and Polly March as Mr and Mrs Beaver, Steve Hodson as Maugrim, and Michael Deacon as Father Christmas. In this version Edmund draws Susan and Lucy's attention to the dead bluebottle, much to their disgust! I only mention this in passing, as I am unsure whether this version is familiar to members of the Dancing Lawns.