Downton Abbey Guest cast, played by Charles Edwards Episode 3x07: Episode 7 (Oct 28, 2012) Episode 3x08: Episode 8 (Nov 4, 2012) Episode S03 Special: A Journey to the Highlands (Dec 25, 2012) Episode 4x01: Episode 1 (Sep 22, 2013) Episode 4x02: Episode 2 (Sep 29, 2013) Episode 4x03: Episode 3 (Oct 6, 2013) Episode 4x04: Episode 4 (Oct 13, 2013)