as Bong-soo's father
as Man-taek's grandfather
as Grandfather from Kangwondo
as Seung-wan's father
as Principal
as Dong-sik
as Yu Shin-woo
as Company president Lee
as Chairman Lee Sam-goo
as Choi Kyung-son
as Shi Yeon's Father
as Choi Kyu-ha
as Uhm Hwi Jang
as 박덕보
as Ma Pa-ram
