Downton Abbey Guest cast, played by Neil Bell Episode 3x02: Episode 2 (Sep 23, 2012) Episode 3x03: Episode 3 (Sep 30, 2012) Episode 3x04: Episode 4 (Oct 7, 2012) Episode 3x05: Episode 5 (Oct 14, 2012) Episode 3x06: Episode 6 (Oct 21, 2012)