Volcano High— Full Cast

Jang Hyuk

as Kim Kyung-soo

Shin Min-a

as Yoo Chae-yi

Kim Hyeong-jong

as Shimma

Byun Hee-bong

as Jang Hak-sa

Huh Joon-ho

as Mr. Ma

Gong Hyo-jin

as So Yo-seon

Kim Soo-ro

as Jang Ryang

Kwon Sang-woo

as Song Hak-rim

Cho Seong-ha

as Korean Language Teacher

Seo Beom-sik

as Athletics

Jung Sang-hoon

as Con Cho

Yun Mun-sik

as Principal

Lee Yu-mi

as Unknown