Hattie Morahan Elinor Dashwood Actor Charity Wakefield Marianne Dashwood Actor David Morrissey Colonel Brandon Actor Dominic Cooper Willoughby Actor Mark Gatiss John Dashwood Actor Janet McTeer Mrs Dashwood Actor Lucy Boynton Margaret Dashwood Actor Linda Bassett Mrs Jennings Actor Mark Williams Sir John Middleton Actor John Alexander Director Andrew Davies Writer Anne Pivcevic Producer