Cast Credits Gyeongseong Creature (2023) Guest starring as Customer #3 Episode 1x01: Najin (Dec 22, 2023) Let's Fight Ghost (2016) Guest starring as Homeless Ghost Episode 1x15: Episode 15 (Aug 29, 2016) Signal (2016) Guest starring as Homeless Man Episode 1x09: Hongwon Dong Case (Feb 19, 2016)