That "ehehehehe I'm EVIL!!!" shot is seriously Tom HIddlestonesque, in terms of behind the scenes doofage. Margueretta Scott looks very familiar to me; I thought at first that I'd seen her in one of those Gainsborough melodramas I have, but no. Although she WAS in at least one, it's one I've never seen (Fanny By Gaslight). She definitely has that look, though.