On Assignment Guest cast, played by John Ray Episode 3x02: Episode 2 (Mar 1, 2016) Episode 3x07: Episode 7 (Sep 27, 2016) Episode 9x06: Episode 6 (Jun 28, 2022) Episode 9x08: Episode 8 (Sep 27, 2022) Episode 10x01: Episode 1 (Jan 31, 2023)