Lee Tae-young

as Servant

as Kim Seon-Won (Eps 2) (1 episode)

as Businessman in The Gambling Room

as Thumbs-Up Guy

as Funeral Home Employee (1 episode)

as Delivery Man

as Kwon Sin-gyu (2 episodes)

as Gi Hun (1 episode)

as On-call

as Choi Cheol-seung (2 episodes)

as Brother (16 episodes)

as Choi Do Ri (21 episodes)

as [Baker] (1 episode)

as Police

as [Hye Suk's relative] (1 episode)

as Teaching Assistant

as [Yang Jin's acquaintance] (2 episodes)

as Graduate Student

as Sgt. Choi Bong Rak (10 episodes)

as Driver

as Ginza Street Merchant