In Gyo-jin

as Park Yong-gil

as Oh Bong-gyu

as Choi Min-seok

as Self

as Yook Yook Ho

as Sang-man

as Kim Il Pyeon

as Joo Sang-hyun

as Chang Yeong-guk

as Kim Hwak-se

as Park Moon-bok

as Hwang Du-sik

as Kang In-Han

as Myung-Woon

as Gang-soo

as Wang Gyu-Jin

as Jo Sang-Moo

as Self

as Oh Man-sang, Maths teacher

as Kim In Gyo [Department store manager]

as Self

as Doctor

as Self

as Hong Doo-sik

as Dong-wook

as Self

as Im Soo-yong

as Self

as Hwang Kyung-Chul

as Gyo Ji-hoon

as Jin Hyun-woong

as Self

as Joo Yeon-ae's ex-boyfriend

as Kwon Seok-chul

as Han Jung-min

as Han Mi-na's husband

as Kim Yong-choon

as In-ha

as Park Ha-Jin

as Lee Chang-soo

as Oh Soo-Chul

as 고민상

as Soo-il