Kingdom Main cast, played by Heo Joon Ho Episode 1x03: Episode 3 (Jan 25, 2019) Episode 1x05: Episode 5 (Jan 25, 2019) Episode 1x06: Episode 6 (Jan 25, 2019) Episode 2x01: Episode 1 (Mar 13, 2020) Episode 2x02: Episode 2 (Mar 13, 2020) Episode 2x03: Episode 3 (Mar 13, 2020)