Character Name : Kang Yang-hyun

Original Name : 안재홍

Gender : Male

Character Name : Cheon Gi-beom

Original Name : 이신영

Gender : Male

Character Name : Bae Gyu-hyuk

Original Name : 정진운

Gender : Male

Character Name : Hong Sun-gyu

Original Name : 김택

Gender : Male

Character Name : Jung Kang-ho

Original Name : 정건주

Gender : Male

Character Name : Heo Jae-yoon

Original Name : 김민

Gender : Male

Character Name : Jung Jin-wook

Original Name : Ahn Ji-ho

Gender : Male

Character Name : Teacher Lee

Original Name : 이준혁

Gender : Male

Character Name : Messy hair

Original Name : Kim Hoe-jin

Gender : Male

Character Name : Gyu-hyuk's Mother

Original Name : 김수진

Gender : Female

Character Name : Principal's Wife

Original Name : 강애심

Gender : Female

Character Name : Gi-beom's Father

Original Name : 민무제

Gender : Male

Character Name : Gi-beom's Mother

Original Name : 최정윤

Gender : Female

Character Name : Teacher 1

Original Name : 배성일

Gender : Male

Character Name : Teacher 2

Original Name : Kang Shin-chul

Gender : Male

Character Name : Teacher 3

Original Name : Yoo In-hye

Gender : Female

Character Name : Teacher 4

Original Name : Song Chang-gyu

Gender : Male

Character Name : Yongsan High School Coach

Original Name : 장현성

Gender : Male

Character Name : 50s Man

Original Name : 박상면

Gender : Male

Character Name : Sportscaster

Original Name : Park Jae-min

Gender : Male

Character Name : Imho Middle School Coach

Original Name : 이상원

Gender : Male

Character Name : Referee

Original Name : Baek Do-kyeom

Gender : Male

Character Name : Jemulpo High School 7

Original Name : Kim Won-shik

Gender : Male

Character Name : Doctor

Original Name : Jeon Yeong

Gender : Female

Character Name : Police

Original Name : Lee Tae-young

Gender : Male