Yun Ki-chang

as Detective (1 episode)

as Math Teacher

as [Prosecutor] (1 episode)

as CEO Kim (2 episodes)

as Detective (2 episodes)

as Cyber Investigation Officer (1 episode)

as Jin Xia's Supervisor

as Detective

as Researcher 1

as Man Opening a Window

as Park Sang-man

as Jang's Subordinate 2

as Agent

as Rescue Worker 2

as Woo-jin 20

as Detective #3