Character Name : Ri Hak-sung

Original Name : 최민식

Gender : Male

Character Name : Han Ji-woo

Original Name : 김동휘

Gender : Male

Character Name : Ahn Gi-chul

Original Name : 박해준

Gender : Male

Character Name : Kim Geun-ho

Original Name : 박병은

Gender : Male

Character Name : Park Bo-ram

Original Name : 조윤서

Gender : Female

Character Name : Tae-yeon

Original Name : 탕준상

Gender : Male

Character Name : Park Pil-joo

Original Name : 김원해

Gender : Male

Character Name : Professor Oh

Original Name : 주진모

Gender : Male

Character Name : Bo-ram's Mother

Original Name : 김희정

Gender : Female

Character Name : Ji-woo's Mother

Original Name : 강말금

Gender : Female

Character Name : Korean Teacher

Original Name : 주예린

Gender : Female

Character Name : NIS Agent

Original Name : 정승길

Gender : Male

Character Name : Student 5

Original Name : 신재휘

Gender : Male

Character Name : Ui-joon

Original Name : 강준규

Gender : Male

Character Name : Principal

Original Name : 김소숙

Gender : Female

Character Name : Hanbok Teacher

Original Name : 최재섭

Gender : Male

Character Name : Ddal-bong

Original Name : Ro Jong-hyun

Gender : Male