Eleven years after going into hiding, an ex-gangster returns to Seoul’s criminal to find out the truth about his brother’s death — and get revenge. His weapon of choice? A baseball bat. Based on a webtoon, the action K-drama Mercy for None stars So Ji-sub, Huh Joon-ho, Gong Myoung, and An Kil-kang. It was directed by Choi Sung-eun (Little Sister). Read on to find out everything else you need to know about the series. 

When will Mercy for None be released?

Stream it now.

Where can I find the trailer for Mercy for None?

Check it out at the top of this page. 

Jung Jae-gu/Netflix

Who’s in the cast of Mercy for None?

• So Ji-sub (Alienoid) as Nam Gi-jun, the former top enforcer of Seoul’s underworld
• Lee Jun-hyuk (Stranger) as Nam Gi-seok, Gi-jun’s brother and the senior managing director of Juwoon Group
• Huh Joon-ho (Escape from Mogadishu) as Lee Ju-woon, the president and CEO of Juwoon Group
• An Kil-kang (Watcher) as Gu Bong-san, the leader of Bongsan Group
• Gong Myoung (Extreme Job) as Gu Jun-mo, Bong-san’s son and the managing director of Bongsan
• Choo Young-woo (The Trauma Code: Heroes on Call) as Lee Geum-son, a prosecutor for Seoul’s central district
• Cha Seung-won (Uprising) as Cha Yeong-do, aka Mr. Kim, the manager of Bongsan and head of the police force’s planning and budgeting department
• Tiger Lee as Sim Seong-won, the chairman and CEO of NClean, which specializes in cleaning up murders
• Cho Han-cheul (Gyeongseong Creature) as Choi Sung-cheol

What happens in Mercy for None?

In Seoul, two powerful organizations run the city’s criminal underworld: Bongsan Group and Juwoon Group. Juwoon’s leader, Lee Ju-woon (Huh), has just named his successor: senior managing director Nam Gi-seok (Lee Jun-hyuk). Upon hearing the news, an empowered Gi-seok pays a visit to Bongsan managing director Gu Jun-mo (Gong), the good-for-nothing son of the group’s CEO, Gu Bong-san (An). Jun-mo’s been ruffling too many feathers as of late, and Gi-seok is determined to put him in his place. The dressing-down humiliates the entitled heir, so he vows to kill Gi-seok. When Jun-mo seemingly makes good on his word, Gi-seok is slain in a parking garage. Gi-seok’s brother, Gi-jun (So), who’s been living in exile since he left the underworld over a decade ago, reenters the mob scene to get revenge against anyone and everyone involved in his brother’s murder. 

Jung Jae-gu/Netflix

Is Mercy for None based on a book?

Yes, it’s based on the webtoon Plaza Wars: Mercy for None by O Se-hyung and Kim Gyun-tae. The screenplay was written by Yoo Ki-seong. 

Where does Mercy for None take place?

The series takes place in Seoul. 

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