Ольга Guest cast, played by Николай Шрайбер Episode 1x03: Серия 03 (Sep 6, 2016) Episode 1x04: Серия 04 (Sep 7, 2016) Episode 1x05: Серия 05 (Sep 8, 2016) Episode 1x13: Серия 13 (Sep 22, 2016) Episode 2x17: Серия 37 (Sep 28, 2017) Episode 3x05: Серия 45 (Nov 12, 2018)