Un Bore Mercher Guest cast, played by Richard Elfyn Episode 1x02: Pennod 2 (Nov 12, 2017) Episode 1x03: Pennod 3 (Nov 19, 2017) Episode 1x05: Pennod 5 (Dec 3, 2017) Episode 1x06: Pennod 6 (Dec 10, 2017) Episode 1x07: Pennod 7 (Dec 17, 2017) Episode 1x08: Pennod 8 (Dec 24, 2017)