as Choi Han-gyu
as Kim Je-seok
as Department Head Nam
as Kang Sang-maan
as Jung-su
as Lee Young-Joon
as Noh Joon-suk
as Lee Sun-Moon
as Kim Yongchun
as Park Jin-suk
as Chairman Kim Nam-yoon
as Baek Jang -ho
as Kim In-su
as Oh Tae-suk
as Kim Jae-man
as Cha Gi-baek
as Teacher Baek
as Jang Tae-joon
as Chang-sik
as Oh Yeong-geun
as Professor Yoon
as Seo Dae-Seok
as Kim Geon-pyo
as Kim Seok-joon
as Hwang Dong-woo
as President Han
as Han Pan-seok
as Cha Jae-hwan
as Kim Seok Ju
as Professor Kim Jinwoo
as Byun Dae-sung
as Bang Ki-ho
as Park Jin-kwon
as Kang Dong-hyun
as Jong-goo
as Yoon Myung-hoon
as Yoon Soo-ha (2006)
as Jang Kil-Taek
as Manager Jin
as Park Jae-hyun
as Chae Byung-Hak
as Ji Kyung-hwan
as Chae Dae-pil
as Lee Hoe-young
