Fortitude Guest cast, played by David Yip Episode 2x01: Episode 1 (Jan 26, 2017) Episode 2x04: Episode 4 (Jan 26, 2017) Episode 2x05: Episode 5 (Jan 26, 2017) Episode 2x08: Episode 8 (Jan 26, 2017) Episode 2x10: Episode 10 (Jan 26, 2017) Episode 3x04: Episode 4 (Dec 6, 2018)