Character Name : Professor Hak-kyu

Original Name : 정우성

Gender : Male

Character Name : Deok-ee / Se-jung

Original Name : 이솜

Gender : Female

Character Name : Chung-ee

Original Name : Park So-young

Gender : Female

Character Name : Mr. Choi

Original Name : 김희원

Gender : Male

Character Name : Young Chung-ee

Original Name : Park Seo-yeon

Gender : Female

Character Name : Chung-ee's Friend

Original Name : 박소담

Gender : Female

Character Name : Chung-ee's Mother

Original Name : 윤세아

Gender : Female

Character Name : Ji-eun

Original Name : Han Joo-young

Gender : Female

Character Name : Deong-chi

Original Name : 손석구

Gender : Male

Character Name : Student

Original Name : Lee Seo-yi

Gender : Female

Character Name : Doctor

Original Name : 김나미

Gender : Female

Character Name : Gambler

Original Name : 최리호

Gender : Male