The Merciless
“Careful who you trust.”
Jae-ho, who aims to become the number one in a crime organization, gets to build up trust with Hyun-su, an ambitious newbie in prison. When they try to take over the organization after their release, their ulterior motives start to emerge.
Where to watch The Merciless in United States
Can I watch The Merciless in United States? The Merciless isn't currently available to stream in United States. Availability changes often — add it to your watchlist and check back.
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Click a service to open The Merciless there. Availability last verified on August 21, 2026.
Where is The Merciless streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| India | — | Apple TV Store, Google Play Movies, YouTube |
| United Kingdom | Studiocanal Presents Amazon Channel | Apple TV Store, Rakuten TV, Amazon Video |
| France | — | Apple TV Store, Google Play Movies, Orange VOD |
| Japan | Amazon Prime Video, Hulu, U-NEXT, Amazon Prime Video with Ads | Amazon Video |
| South Korea | Netflix, Netflix Standard with Ads, TVING | wavve |
About The Merciless
The Merciless is a 2017 Korean-language action, crime and mystery film directed by Byun Sung-hyun. The cast is led by Sul Kyung-gu, Yim Si-wan, Kim Hie-won. It has a runtime of 2h 0m. Viewers rate it 7.2/10 across 100 ratings.
The Merciless was produced by CJ Entertainment and Barunson and made in South Korea. It was released on May 17, 2017.
- Director
- Byun Sung-hyun
- Writers
- Byun Sung-hyun, Kim Min-su
- Release date
- May 17, 2017
- Original language
- Korean
- Status
- Released
- Country
- South Korea
- Production
- CJ Entertainment, Barunson
The Merciless cast & crew
The Merciless was directed by Byun Sung-hyun and written by Byun Sung-hyun and Kim Min-su.
The cast features Sul Kyung-gu as Han Jae-ho, Yim Si-wan as Jo Hyun-su, Kim Hie-won as Byung-gab, Jeon Hye-jin as In-sook, Lee Kyung-young as Byung-chul, and Moon Ji-yoon as Young-geun.
Behind the camera, cinematography is by Cho Hyoung-rae and it was produced by Kwon Michelle and Yun Ji-won.
Is The Merciless worth watching?
The Merciless holds an audience score of 7.2/10 from 144 ratings, marking it as well-reviewed action films.
At 2h 0m, it's a standard feature-length watch.
If you enjoy action, crime, and mystery, The Merciless is worth a place on your watchlist.
How and where to watch The Merciless
The Merciless isn't currently available on major streaming services in United States. We track availability continuously — add it to your watchlist and we'll keep an eye out.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
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Cast of The Merciless
Sul Kyung-gu
Han Jae-ho
Yim Si-wan
Jo Hyun-su
Kim Hie-won
Byung-gab
Jeon Hye-jin
In-sook
Lee Kyung-young
Byung-chul
Moon Ji-yoon
Young-geun
Jang In-sub
Min-chul
Kim Ji-hoon
Jung-sik
Kim Seung-oh
Seung-pil
Jin Sun-kyu
Prison Chief Security Officer
Huh Joon-ho
Kim Sung-han
Shin So-yul
Osean Trading Advertisement Beauty 1
The Merciless — FAQs
▸Where can I watch The Merciless in United States?
The Merciless is not currently available on major streaming services in United States. Availability changes often — check back soon.
▸What language is The Merciless in?
The Merciless is originally in Korean. Subtitle and dub options vary by streaming service.
▸How long is The Merciless?
The Merciless runs 2 hours 0 minutes (120 minutes).
▸What is The Merciless rated?
It holds a 7.2/10 audience score from 144 ratings.
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