We don't have a biography for Lady Prudence Shackleton yet. Hang in there, or go ahead and contribute one.
Downton Abbey Guest cast, played by Harriet Walter Episode 4x01: Episode 1 (Sep 22, 2013) Episode 5x01: Episode 1 (Sep 21, 2014) Episode 6x04: Episode 4 (Oct 11, 2015) Episode 6x08: Episode 8 (Nov 8, 2015)