Netflix has officially confirmed that Trauma Code: Heroes on Call will have a second and third season, ending a long wait for fans of the South Korean drama. Along with the renewal announcement, the platform also revealed the return of several main actors, as well as an unexpected change in one of the series' key roles.
Jung Ye In will replace Ha Young in the role of nurse Cheon Jang Mi, one of the characters most beloved by the audience since the premiere of the first season.
What is Trauma Code: Heroes on Call about
Trauma Code: Heroes on Call is a Netflix original series produced in South Korea, based on the webtoon Severe Trauma Center: Golden Hour, by Lee Nak Jun. The story follows a medical team specializing in trauma that fights to save lives in extreme emergency situations within a university hospital.
Since its premiere on January 24, 2025, the series became a phenomenon within the Netflix catalog, accumulating 43.6 million views. The drama spent five weeks in the platform's global top 10, reaching the number one spot.
Confirmed cast for the new seasons
Netflix has confirmed that four of the main actors from the first season will return to reprise their roles in the new installments.
Ju Ji Hoon returns as Baek Kang Hyuk
Ju Ji Hoon will reprise the role of genius surgeon Baek Kang Hyuk. The actor will also be part of the cast of Buy King, the highly anticipated Netflix crime thriller scheduled for 2027.
Choo Young Woo repeats as Yang Jae Won
Choo Young Woo will return to play Yang Jae Won, Baek Kang Hyuk's first disciple. Since the premiere of Trauma Code, the actor has starred in the crime thriller Mercy for None on Netflix and will soon appear in the K-drama Long Vacation.
Yoon Kyung Ho returns as Han Yu Rim
Yoon Kyung Ho will repeat as Han Yu Rim, a character who started out hostile toward Baek Kang Hyuk and is now a trusted friend, as well as the head of planning and coordination at Hankuk National University Hospital. Recently, the actor appeared in the popular SBS drama Agent Kim Reactivated, available on Netflix, and has a guest role in Dead-End Job.
Jung Jae Kwang repeats as Park Gyeong Won
Jung Jae Kwang will return to play anesthesiologist Park Gyeong Won. The actor recently starred in the SBS series My Royal Nemesis and had a supporting role in the Netflix romantic comedy Take Charge of My Heart.
Jung Ye In replaces Ha Young as Cheon Jang Mi
The most notable addition to the new seasons is Jung Ye In, confirmed to replace Ha Young in the role of nurse Cheon Jang Mi.
According to available information, Ha Young is leaving the series following a reported controversy related to her family's alleged ties to pro-Japanese stances. Jung Ye In joins the project with significant prior popularity as a K-pop idol, being a member of the group LOVELYZ.
What is known about the plot of the new seasons
Netflix has shared a brief synopsis of what viewers can expect in the upcoming installments of the series.
According to the official teaser, in the new seasons, the medical team will demonstrate even stronger teamwork to save patients in even more desperate situations. Baek Kang Hyuk will face greater crises and unexpected circumstances as he attempts to expand and stabilize an effective trauma system that allows for more lives to be saved.
What remains to be confirmed
For now, Netflix has not revealed a release date for the second or third season of Trauma Code: Heroes on Call. Nor has the number of episodes for the new installments been announced, or whether there will be additional cast additions beyond the confirmed change in the role of Cheon Jang Mi.
Frequently asked questions about Trauma Code: Heroes on Call
Has Netflix confirmed season 2 and 3 of Trauma Code: Heroes on Call?
Yes, Netflix has officially confirmed the renewal of the series for two additional seasons, although a release date has not yet been announced.
Who is replacing Ha Young in Trauma Code: Heroes on Call?
Jung Ye In will replace Ha Young in the role of nurse Cheon Jang Mi starting in the new seasons.
Why is Ha Young leaving the series?
According to available information, Ha Young is leaving the project following a reported controversy linked to her family's alleged pro-Japanese ties.
Which actors are returning for the new seasons?
Ju Ji Hoon, Choo Young Woo, Yoon Kyung Ho, and Jung Jae Kwang will reprise their roles from the first season.
What will the second season of Trauma Code: Heroes on Call be about?
According to the official Netflix synopsis, the medical team will face even more critical situations while Baek Kang Hyuk attempts to consolidate a more effective trauma system to save lives.
