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