Character Name : Baek Se-jin

Original Name : 윤시윤

Gender : Male

Character Name : Lee Byung-joo

Original Name : 여진구

Gender : Male

Character Name : Seok-gu

Original Name : 천호진

Gender : Male

Character Name : Principal

Original Name : 이경영

Gender : Male

Character Name : Byung-joo's father

Original Name : 박상면

Gender : Male

Character Name : Jong-hee's father

Original Name : 이원종

Gender : Male

Character Name : Jeong-hwan

Original Name : 공정환

Gender : Male

Character Name : Yi-hwa

Original Name : 김보미

Gender : Female

Character Name : Anna

Original Name : Yoo Seo-jin

Gender : Female

Character Name : Gang of Four

Original Name : Je Seong-soo

Gender : Male