The Loch Guest cast, played by Shona McHugh Episode 1x01: Episode 1 (Jun 11, 2017) Episode 1x02: Episode 2 (Jun 18, 2017) Episode 1x03: Episode 3 (Jun 25, 2017) Episode 1x04: Episode 4 (Jul 2, 2017) Episode 1x05: Episode 5 (Jul 9, 2017) Episode 1x06: Episode 6 (Jul 16, 2017)