Downton Abbey Guest cast, played by Catherine Steadman Episode 5x04: Episode 4 (Oct 12, 2014) Episode 5x05: Episode 5 (Oct 19, 2014) Episode 5x06: Episode 6 (Oct 26, 2014) Episode 5x07: Episode 7 (Nov 2, 2014) Episode 5x08: Episode 8 (Nov 9, 2014)