---
title: "A Hard Day: cast and crew"
canonical: "https://film.one/film/a-hard-day/cast-and-crew"
title_page: "https://film.one/film/a-hard-day"
cast: 22
crew: 27
licence: "© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL."
---

# A Hard Day (2014): cast and crew

22 cast and 27 crew, as credited (TMDB). Cast in billing order.

## Cast

- [Lee Sun-kyun](https://film.one/person/lee-sun-kyun.md) as Go Gun-su
- [Cho Jin-woong](https://film.one/person/cho-jin-woong.md) as Park Chang-min
- [Jeong Man-sik](https://film.one/person/jeong-man-sik.md) as Detective Choi
- [Shin Jung-geun](https://film.one/person/shin-jung-keun.md) as Chief of Homicide
- [Shin Dong-mi](https://film.one/person/shin-dong-mi.md) as Younger Sister
- [Heo Jeong-eun](https://film.one/person/heo-jung-eun.md) as Min-a
- [Kim Dong-yeong](https://film.one/person/kim-dong-young.md) as Detective Doh
- [Joo Suk-tae](https://film.one/person/ju-seok-tae.md) as Detective
- [Park Bo-gum](https://film.one/person/park-bo-gum.md) as Officer Lee Jin-ho
- [Lee Ji-hoon](https://film.one/person/lee-ji-hoon-1690348.md) as Police Officer of Chemistry Storage
- [Kim Bo-kyung](https://film.one/person/kim-bo-kyung-138505.md) as Ex-wife
- [Kim Kang-hyun](https://film.one/person/kim-kang-hyun.md) as Young-cheol
- Kim Hae-gon as Vault Owner
- Ki Joo-bong as Mr. Kim
- Bae Yu-ram as Police Officer
- Jang In-sub as Police Officer
- Seo Hyun-woo as Police Officer
- Jang Jun-nyeong as Mr. Choi
- Lee Geun-hoo as Jeong Bi-sa
- Choi Eun-suk as Bomb Expert Demonstrator
- Park Jin-seong as Police Signal Controller 1
- Ahn Soo-ho as Funeral Limousine Driver

## Directing

- [Kim Seong-hun](https://film.one/person/kim-seong-hun.md): Director

## Writing

- Kwak Jieong-duk: Adaptation
- Lee Hae-jun: Adaptation
- [Kim Seong-hun](https://film.one/person/kim-seong-hun.md): Writer
- [Jang Hang-jun](https://film.one/person/chang-hang-jun.md): Writer

## Production

- [Cha Ji-hyun](https://film.one/person/cha-ji-hyun.md): Producer
- [Lee Dong-yoon](https://film.one/person/lee-dong-yoon.md): Producer
- You Jeong-hun: Executive Producer
- Billy Acumen: Executive Producer

## Camera

- [Kim Tae-sung](https://film.one/person/kim-tae-sung.md): Director of Photography
- Song Gyeong-seop: Still Photographer

## Editing

- [Kim Chang-ju](https://film.one/person/kim-chang-ju.md): Editor
- [Kim Woo-hyun](https://film.one/person/kim-woo-hyun.md): Assistant Editor
- [Han Mi-yeon](https://film.one/person/han-mi-yeon.md): Assistant Editor

## Sound and music

- Sung Yoon-yong: Sound Supervisor
- Jung Jin-wook: Production Sound Mixer
- Kim Mi-mi: Boom Operator
- [Mok Yeong-jin](https://film.one/person/mok-yeong-jin.md): Original Music Composer
- Lee In-gyu: Sound Supervisor

## Art

- [Lee Mi-kyoung](https://film.one/person/lee-mi-kyoung.md): Production Design

## Costume and make-up

- [Ko Hee-jung](https://film.one/person/ko-hee-jung.md): Costume Design
- Kwon Su-kyung: Makeup & Hair

## Visual effects

- Kim Nam-sik: VFX Supervisor
- Jeong Jaehoon: Visual Effects Supervisor
- Junhoi Kim: Visual Effects

## Lighting

- Kim Kyeong-seok: Lighting Director

## Crew

- Choi Dong-hun: Martial Arts Choreographer

---
© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL. Our review: https://film.one/film/a-hard-day.md