Ryu Sun-jae
Im Sol
Kim Tae-sung
Baek In-hyuk
Park Bok-soon
Jung Mal-ja
Im Geum
Lee Hyun-joo
Ryu Geun-deok
Kim Seok-hyun
Park Dong-seok
Jay
Kim Hyung Gu (Seon Jae's rival)
Math Teacher
