Cast Credits Doctor Doctor (2016) Guest starring as Old Man (2 episodes) Episode 2x02: Episode 2 (Aug 23, 2017) Episode 1x05: Episode 5 (Oct 12, 2016) Guest starring as Gordon (6 episodes) Episode 5x06: Episode 6 (Jun 2, 2021) Episode 5x02: Episode 2 (May 5, 2021) Episode 4x09: Episode 9 (May 6, 2020) Episode 4x05: Episode 5 (Mar 4, 2020) Episode 3x04: Episode 4 (Aug 27, 2018) Episode 3x01: Episode 1 (Aug 6, 2018) View 3 more View 3 less