We don't have a biography for Lady Harriet Cumnor yet. Hang in there, or go ahead and contribute one.
Wives and Daughters Guest cast, played by Rosamund Pike Episode 1x01: Episode 1 (Nov 28, 1999) Episode 1x02: Episode 2 (Dec 5, 1999) Episode 1x04: Episode 4 (Dec 19, 1999)