Ahn Ji-ho

["Jeong Ho-soo"]

Jung Sung-il

["Kim Chang-joon"]

Seo Ji Hoon

["Kim Hwan"]

Woo Hee-jin

["Hwang Seo-yoon (Jae-ha's mother)"]

Park Ji-hoon

["Seo Min-kook"]

Kim Nam-hee

["Song Joon-ho"]

Nam Myung Ryul

["Koo Hyun-bok (Principal)"]