Character Name : Sung-geun

Original Name : 설경구

Gender : Male

Character Name : Tae-sik

Original Name : 박해일

Gender : Male

Character Name : Chief Oh

Original Name : 윤제문

Gender : Male

Character Name : Professor Heo

Original Name : Lee Byung-joon

Gender : Male

Character Name : Yeo-jeong

Original Name : 류혜영

Gender : Female

Character Name : Nurse

Original Name : 장소연

Gender : Female

Character Name : Cheol-Ju

Original Name : 이규형

Gender : Male

Character Name : Girl (uncredited)

Original Name : 채수빈

Gender : Female

Character Name : King Lear (uncredited)

Original Name : 정해균

Gender : Male

Character Name : Principal (uncredited)

Original Name : 민경진

Gender : Male

Character Name : Neurosurgeon (uncredited)

Original Name : 허준석

Gender : Male

Character Name : Audition Actor (uncredited)

Original Name : Kim Won-jin

Gender : Male

Character Name : Young Tae-sik

Original Name : 박민수

Gender : Male

Character Name : Sung-geun's Mother

Original Name : 손영순

Gender : Female

Character Name : President Baek

Original Name : 배성우

Gender : Male

Character Name : Big Guy

Original Name : Son Sang-kyung

Gender : Male

Character Name : President

Original Name : 전국환

Gender : Male

Character Name : Gi-cheol

Original Name : 이준혁

Gender : Male

Character Name : Director

Original Name : 정인겸

Gender : Male

Character Name : Older Alumnus

Original Name : 김세동

Gender : Male

Character Name : Bus Jumper Man

Original Name : 이현걸

Gender : Male

Character Name : Demonstration Student

Original Name : Yun Se-hyun

Gender : Male

Character Name : Young Tae-sik

Original Name : Park Min-su

Gender : Male