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