조폭인 내가 고등학생이 되었습니다

윤찬영

as Yi-heon/Kim Deuk-pal

봉재현

as Choi Se-kyung

Won Tae-min

as Kim Dong-soo

이서진

as Kim Deuk-pal

서태화

as Choi Myung-hyun

김세원

as Kim Yeon-ji

Joo Yoon-chan

as Hong Jae-min

이경영

as The Boss

신민재

as Mathematics Lecturer

이희진

as Song Min-seo

Ko Dong-ok

as Jong Cheol

Choi Ji-hye

as Min-ji