Un Bore Mercher Guest cast, played by Alun ap Brinley Episode 2x01: Pennod 1 (May 12, 2019) Episode 2x04: Pennod 4 (Jun 2, 2019) Episode 2x05: Pennod 5 (Jun 9, 2019) Episode 2x06: Pennod 6 (Jun 16, 2019)