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