In Gyo-jin

as Sang-man

as Dong-wook

as In-ha

as Lee Chang-soo

as Soo-il

as Park Yong-gil • 12 eps

2 eps

1 eps

as Oh Bong-gyu • 12 eps

as Choi Min-seok • 12 eps

as Self • 12 eps

as Yook Yook Ho • 18 eps

as Kim Il Pyeon • 1 eps

as Joo Sang-hyun • 16 eps

112 eps

as Chang Yeong-guk • 16 eps

as Kim Hwak-se • 50 eps

17 eps

as Park Moon-bok • 16 eps

as Hwang Du-sik • 1 eps

as Kang In-Han • 32 eps

as Myung-Woon • 12 eps

as Gang-soo • 2 eps

as Wang Gyu-Jin • 1 eps

as Jo Sang-Moo • 16 eps

as Self • 2 eps

as Oh Man-sang, Maths teacher • 8 eps

as Kim In Gyo [Department store manager] • 2 eps

as Self • 1 eps