Ha Young will not return as Cheon Jang-mi in the follow-up to Netflix’s hit Korean medical drama The Trauma Code: Heroes on Call.
For international viewers, the news may be especially confusing.
Why would an actress leave one of her biggest roles because of a controversy involving her great-grandfather and events that took place during Korea’s Japanese colonial period more than a century ago?
The answer requires more than a simple celebrity-news explanation.
It involves Korea’s painful colonial history, the continuing sensitivity surrounding people who collaborated with Imperial Japan, and the way Ha Young originally spoke about her family history before learning more about it.
Here is what happened — and what it could mean for The Trauma Code Season 2.
Is Ha Young Leaving The Trauma Code Season 2?
Yes.
Netflix confirmed on September 1, 2026 that Ha Young will not appear in the follow-up installments of The Trauma Code: Heroes on Call.
Ha Young played Cheon Jang-mi, the trauma center nurse who became an important member of Baek Kang-hyuk’s team in Season 1.
She had been expected to return alongside major cast members including Ju Ji-hoon and Choo Young-woo.
That is why the announcement immediately raised another question among fans:
What happened?
Why Is Ha Young Leaving The Trauma Code?
Her departure came after a controversy involving her great-grandfather, An Sang-ho, a doctor who lived during Japan’s colonial rule of Korea.
The controversy began after Ha Young appeared on the Korean television program Problem Child in House.
While discussing her family background, she explained that medicine had been practiced in her family for four generations and mentioned that her great-grandfather had studied Western medicine in Japan.
The timing was particularly sensitive.
Her comments came shortly before August 15, Korea’s National Liberation Day, which commemorates the end of Japanese colonial rule in 1945.
Korean internet users subsequently began examining historical records concerning her great-grandfather.
This led to allegations concerning his pro-Japanese activities during the colonial period.
What Did Ha Young Say About Her Great-Grandfather?
The controversy became more serious because Ha Young had initially spoken about her family’s medical history with pride.
Her representatives first rejected the allegations surrounding her great-grandfather as groundless.
However, Ha Young later said that after personally examining relevant historical records, she learned about her great-grandfather’s pro-Japanese activities.
She apologized for speaking about her family history without fully understanding that part of Korea’s past.
She also expressed regret and said she took her ancestor’s wrongdoing seriously.
This distinction is important.
The controversy was not simply:
“An actress has a controversial ancestor.”
Part of the public reaction came from the fact that the family history had initially been presented positively, followed by an initial denial of the allegations before Ha Young later acknowledged what she had learned from the historical records.
Why Is This Such a Sensitive Issue in South Korea?
This is probably the most difficult part for international viewers to understand.
Korea was under Japanese colonial rule from 1910 to 1945.
During this period, Koreans experienced political repression, forced assimilation policies, exploitation and other abuses.
But another issue continued after liberation.
Many Koreans believe that people who collaborated with the Japanese colonial authorities were never adequately held accountable after 1945.
Some collaborators and their descendants were perceived as having retained property, wealth or social privilege acquired during the colonial period.
Because of this history, the Korean term often translated as “pro-Japanese collaborator” carries much heavier historical and emotional meaning than simply describing someone who liked Japan or Japanese culture.
It refers to collaboration with the colonial system that ruled Korea.
That distinction is essential for international readers.
The controversy surrounding Ha Young therefore touched a historical wound that remains sensitive in Korean society today.
Was Ha Young Fired by Netflix?
There is an important distinction here.
Netflix has not publicly said that it fired Ha Young.
Netflix said it was respecting the actor’s position and confirmed that she would not participate in the follow-up installments.
Reports also indicate that Ha Young communicated her decision to the production side.
Therefore, headlines claiming that Netflix simply “fired” her because of her ancestor would go beyond what has officially been confirmed.
What is confirmed is:
Ha Young is leaving The Trauma Code follow-up after the controversy, and Netflix has accepted her decision.
What Happens to Cheon Jang-mi in Season 2?
This is now the biggest question for The Trauma Code fans.
Cheon Jang-mi was not just a background nurse in Season 1.
She became one of the recognizable members of the trauma team and developed strong chemistry with Baek Kang-hyuk, Yang Jae-won and the rest of the hospital staff.
Her absence therefore creates a real casting and storytelling problem for the next installment.
There are several possibilities.
The production could:
- recast Cheon Jang-mi with another actress,
- write the character out of the story,
- or introduce a new character who performs a similar role within the trauma team.
For now, however, Netflix has not officially announced who will replace Ha Young or how Cheon Jang-mi’s absence will be handled.
Who Will Replace Ha Young in The Trauma Code Season 2?
There is currently no confirmed replacement actress.
Fans online have already begun suggesting actresses they would like to see join the series.
Reddit discussions, for example, have quickly turned toward possible replacements and whether Cheon Jang-mi should be recast at all.
But these names should be treated as fan casting only.
Until Netflix or the production team announces a replacement, claims that a specific actress has been chosen should be treated with caution.
Is The Trauma Code Season 2 Still Happening?
Ha Young’s departure does not mean the series itself has been canceled.
Interest in a follow-up has remained high after the success of the first season, and preparations for the next installment have been reported to be underway.
The original drama follows genius trauma surgeon Baek Kang-hyuk, played by Ju Ji-hoon, as he attempts to rebuild a struggling trauma center with an unconventional team.
Season 1 consists of eight episodes and became a significant international Netflix K-drama hit.
Ha Young’s departure changes an important part of that ensemble, but there has been no announcement that the entire follow-up project has been canceled because of her exit.
Why International Fans May See This Differently From Korean Viewers
The reaction to this controversy may look unusual from outside Korea.
Some international viewers may ask:
Why should someone today be held responsible for something their great-grandfather did?
That is a reasonable question.
At the same time, the Korean reaction cannot be understood simply as people blaming a descendant for an ancestor’s actions.
The controversy also involved how the family history was publicly presented, the initial response to the allegations, the timing around Liberation Day, and a much larger unresolved historical debate over colonial collaboration.
Understanding that context does not require every reader to agree with every reaction.
But it does explain why the story became much larger in Korea than an ordinary celebrity family-history controversy.
Final Thoughts
Ha Young’s departure creates one of the biggest changes facing The Trauma Code: Heroes on Call as it prepares for its next chapter.
Netflix has confirmed that she will not return, meaning viewers should not expect to see Ha Young playing Cheon Jang-mi in the follow-up under the current plan.
But another mystery remains unresolved:
What happens to Cheon Jang-mi now?
Will Netflix recast the character?
Will Jang-mi disappear from the story?
Or will a completely new trauma-center nurse join Baek Kang-hyuk’s team?
For The Trauma Code fans, that may now be the next major announcement to watch.
This article will be updated if Netflix announces a replacement for Cheon Jang-mi or releases additional information about the next season.

