돌이킬 수 없는

Lee Jung-jin

Yoo Se-jin

Tae-woo Kim

No Choong-sik

김창숙

Jeon Geum-ja

정인기

Detective Baek Yong-kwon

임성언

Yoo Se-jin

Cheon Bo-geun

Do-jin

김경익

Eun-ae's Father

Oh Kwang-rok

Professor Kim (uncredited)