Character Name : Cheon Seong-geun

Original Name : 김수로

Gender : Male

Character Name : Han Song-i

Original Name : 박보영

Gender : Female

Character Name : Ok Gi-ho

Original Name : Lee Chan-ho

Gender : Male

Character Name : Cha Seung-ryong

Original Name : 김형범

Gender : Male

Character Name : Meok-tong

Original Name : 김기방

Gender : Male

Character Name : Jin-gook

Original Name : Park Jin-Taek

Gender : Male

Character Name : Seong-geun's Mother

Original Name : 김영옥

Gender : Female

Character Name : Doctor

Original Name : 하정우

Gender : Male

Character Name : Gi-ho's Mother

Original Name : Jang Hee-Su

Gender : Male

Character Name : Eun-sil's Mother

Original Name : 이용이

Gender : Female

Character Name : Vice-principal

Original Name : Lee Hyung-Kwon

Gender : Male

Character Name : Teacher Choi

Original Name : Gong Ho-seok

Gender : Male

Character Name : Principal

Original Name : 이한위

Gender : Male

Character Name : President Lee

Original Name : 김성령

Gender : Female

Character Name : Lee Eun-sil

Original Name : 문채원

Gender : Female

Character Name : Oh Sang-hoon

Original Name : 이민호

Gender : Male

Character Name : Baek Jung-goo

Original Name : 백성현

Gender : Male

Character Name : Chemistry Teacher

Original Name : Lee Eon-jeong

Gender : Female

Character Name : Publishing Company President

Original Name : 김병옥

Gender : Male

Character Name : Referee

Original Name : Kim Won-jin

Gender : Male

Character Name : Ji Yeon

Original Name : Ji Hye-in

Gender : Female

Character Name : Interview Student 3

Original Name : Son Min-ji

Gender : Female

Character Name : Ja Ba Nom

Original Name : 오순태

Gender : Male