Netflix has confirmed Seasons 2 and 3 of The Trauma Code: Heroes on Call, known as Heróis de Plantão on Netflix in Brazil. The announcement came on October 19, 2026, with Ju Ji-hoon, Choo Young-woo, Yoon Kyung-ho and Jeong Jae-kwang returning. Nurse Cheon Jang-mi will remain in the story, but Jeong Ye-in is taking over the role from Ha Young. Neither season has an official premiere date yet.
There is a behind-the-scenes change, too: Season 1 director Lee Do-yun will write Season 2 and work with newcomer Tomasi on the Season 3 screenplay. That distinction appears in Netflix's Korean announcement and SBS's reporting; Netflix's English-language release provides less detail on the third season's writing team.
Which cast members are returning, and what is changing?
The announcement secures the central medical team established in Season 1. This comparison uses Netflix's character and cast information, supplemented by SBS's reporting on the recasting of Jang-mi.
| Character | Season 1 (2025) | Announced Seasons 2 and 3 |
|---|---|---|
| Baek Kang-hyuk, lead trauma surgeon | Ju Ji-hoon | Ju Ji-hoon returns |
| Yang Jae-won, Kang-hyuk's protégé | Choo Young-woo | Choo Young-woo returns |
| Han Yu-rim, physician and hospital administrator | Yoon Kyung-ho | Yoon Kyung-ho returns; the character becomes chief of planning and coordination |
| Park Gyeong-won, anesthesiologist | Jeong Jae-kwang | Jeong Jae-kwang returns |
| Cheon Jang-mi, trauma team nurse | Ha Young | Jeong Ye-in takes over the same role |
Netflix says additional characters and actors will join the production but has not published a full cast list. The five names above should therefore not be mistaken for every performer in the upcoming seasons.
Does the recasting of Cheon Jang-mi mean the character is leaving?
No. The confirmed change concerns the performer, not the removal of the character. Ha Young portrayed Jang-mi in the first season. Jeong Ye-in, a singer and actor known for being part of Lovelyz, was selected through auditions to portray her in the new seasons.
On September 29, 2026, SBS reported Netflix's confirmation that Jeong Ye-in would appear in Season 2. It also covered Ha Young's departure and reported Netflix's statement that it respected the actor's position. There is no editorial basis for holding any performer responsible for relatives' actions or treating a casting update as a personal verdict.
This is a change of actor within a series that will continue to feature Jang-mi. As of the October announcement, Netflix had not released footage from the new seasons that would allow viewers to compare the performances.
How do the directing and writing credits change across Seasons 2 and 3?
| Installment | Direction | Documented writing credit |
|---|---|---|
| Season 1, released in 2025 | Lee Do-yun | Choi Tae-gang |
| Season 2, confirmed | Lee Do-yun returns | Lee Do-yun takes over the writing |
| Season 3, confirmed | Lee Do-yun remains director | Lee Do-yun writes with Tomasi, announced as a new addition |
This detail can be lost in brief reports. Netflix's international release identifies Lee Do-yun as director and writer; its Korean version spells out the season-by-season arrangement, which SBS repeated on October 19. Tomasi is joining the third season's writing process, not replacing Lee as director.
What will the next seasons be about?
The official premise continues to follow Baek Kang-hyuk and his colleagues as they struggle to build an effective severe-trauma service. Netflix points to larger disasters and unpredictable crises, with Kang-hyuk trying to expand and stabilize a system that can treat patients during the so-called golden hour.
Specific directions announced for Season 2 include Yang Jae-won's development and Han Yu-rim's new administrative role. These are broad plot outlines released by the service, not events from episodes that have already aired. Netflix has not provided a separate detailed synopsis for Season 3.
When will Seasons 2 and 3 premiere, and what remains unknown?
As of October 22, 2026, Netflix had not provided a precise release calendar for either season. Announcing both productions together does not establish simultaneous premieres or a verifiable filming date for each installment.
- Premiere dates in Brazil and other territories: not announced.
- Episode counts for Seasons 2 and 3: unconfirmed.
- Release order and the interval between the two seasons: not detailed.
- Trailer or new-season footage: not included in the October 19 announcement.
SBS wrote on October 19 that filming would begin soon, but this does not amount to an official premiere schedule. Predictions about the month or year of release remain speculation until Netflix publishes them.
Where can viewers watch Season 1 in Brazil?
The eight episodes released on January 24, 2025, are listed on Netflix Brazil under Heróis de Plantão. This is the same show known internationally as The Trauma Code: Heroes on Call and originally titled 중증외상센터. The Brazilian listing covers the first season, not unreleased episodes of the sequels.
For viewers preparing for the show's return, the main distinction is straightforward: the core characters stay, Jang-mi has a new actor, and Lee Do-yun takes over the writing in Season 2, with Tomasi joining him in Season 3. Everything else concerning release timing awaits further official announcements.
Sources and references
- Netflix: Seasons 2 and 3 announcement, cast and production
- Netflix Korea: season-by-season writing details
- SBS, October 19, 2026: cast, announced story and creative team
- SBS, September 29, 2026: new casting for Cheon Jang-mi
- Netflix Tudum: Season 1 cast and creative credits
- Netflix Brazil: Heróis de Plantão series and episode listing
- Netflix, January 2025: first-season premiere announcement
