as Hunter Ahn
as Disciplinary Teacher
as Professor Park
as Ok Ju-man
as Na Jung-beom
as Ik-jun's Professor
as Kim Seok-hyun
as Do Pyeon-gang
as Kong Seung-cheol
as Noh San-woo
as Park Jin-man
as Han Myung-Jin
as Yoon Seung-Soo
as Hwang Doo-Sik
as Jeon Won-Chool
