The Trauma Code: Heroes on Call () is a 2025 South Korean medical comedy television series written by Choi Tae-kang, directed by Lee Do-yoon, and starring Ju Ji-hoon, Choo Young-woo, Ha Young, Yoon Kyung-ho and Jung Jae-kwang. It is based on the web novel Trauma Center: Golden Hour by Hansanleega and Hongbichira, which was serialized into a Naver Webtoon in 2019. The series follows the journey of Baek Kang-hyuk, a brilliant trauma surgeon who joins a struggling university hospital. It was released on Netflix on January 24, 2025.

Synopsis Baek Kang-hyuk arrives at a university hospital where the trauma team is struggling to keep up. His arrival shakes things up as he possesses exceptional surgical skills honed through experience in conflict zones worldwide. His unorthodox methods and unshakable confidence initially create friction with the established team. Little by little, he earns their respect and guides them in developing into a leading trauma unit.

Cast and characters Main Ju Ji-hoon as Baek Kang-hyuk A genius trauma surgeon and ex-mercenary combat medic who becomes the director of the Trauma Unit that became a Trauma Center at Hankuk National University Hospital. Choo Young-woo as Yang Jae-won A fellow who becomes Kang-hyuk's first disciple. He is smart and pacifist who cannot lie. He is also a top scholar student for whole semester in medical school and the only son of a third-generation doctor family. Ha Young as Cheon Jang-mi A nurse with five years of experience in the Trauma Unit at Hankuk National University Hospital. Yoon Kyung-ho as Han Yu-rim A proctologist and the head of general surgery and colorectal surgery who watches Kang-hyuk closely after losing his protégé, Jae-won. Jung Jae-kwang as Park Gyeong-won A resident who takes on difficult surgeries in the anesthesiology department right before his specialist exam.

Supporting Kim Eui-sung as Choi Jo-eun Director of Hankuk National University Hospital. Kim Won-hae as Hong Jae-hun Director of Planning and Coordination of Hankuk National University Hospital. Kim Sun-young as Kang Myeong-hui Minister of Ministry of Health and Welfare.

as Agnes Song as An Jung-heon Team leader of 119 Air Rescue Unit. as Ma Tae-rim as Nurse Kim Park Jung-yoon as Han Ji-young Han Yu-rim's daughter. Kim Youn-jeong as Nurse Hong as Hwang Seon-u An anesthesiologist. Lee Jung-in as Joo Hyung-wook A fellow at Hepatobiliary and Pancreatic Department who has been with Jae-won since their resident years. Jo Jae-young as an emergency medical resident Oh Jung-woo as an emergency medical intern Bang You-in as Nurse Bang Park Gwan-woo as an emergency room nurse 1 Jang Yoo-jung as an emergency room nurse 2 Kwon Hye-min as an emergency room nurse 3 Jo Hoon as a helicopter crew as a helicopter pilot Kim Seo-joon as a helicopter co-pilot

Special appearance Kim Jae-won as Seo Dong-ju A military doctor.

Episodes

Production Development In 2022, Lee Nak-jun, also known by his pen name Hansanleega, an otolaryngologist, YouTuber and web novel writer, appeared as a guest on the February 7 episode of KBS Cool FM's Park Myung-soo's Radio Show. He stated that they already signed a contract for the drama rights of his web novel Trauma Center: Golden Hour and thought of Gong Yoo and Kim Nam-gil to star in the series. In September 2024, the web novel has recently been decided to be made into a drama and was developed under the working title Severe Trauma Center: Golden Hour (). The series is written by Choi Tae-kang, directed by Lee Do-yoon, and produced by Studio N and Mays Entertainment.

In September 2025, it was reported that the second and third season of the series would have a simultaneous production but Netflix refuted it and stated that nothing has been confirmed.

On July 31, 2026, Chu Young-woo, who attended the 5th Blue Dragon Series Awards as a presenter, stated that he was preparing for the next season of The Trauma Code: Heroes on Call, indicating that a follow-up season was being planned.

Following controversy surrounding Ha Young, her potential departure from the subsequent seasons of The Trauma Code: Heroes on Call drew attention. On August 27, it was reported that Ha Young would remain in the series through the second and third seasons, but Netflix stated that the production of the subsequent seasons and casting were still under discussion and had not been confirmed.

Casting In September 2022, Ju Ji-hoon was considered to be the lead actor of the series. In January 2023, Ju's agency Blitzway Studios confirmed that they received the offer and are reviewing it. In April 2023, Choo Young-woo has been cast and his agency, J,Wide-Company stated that he considered to appear. The cast lineup namely Ju, Choo, Yoon Kyung-ho, Ha Young, and Jung Jae-kwang were revealed in June 2023.

Release According to Ize report on December 20, 2024, The Trauma Code: Heroes on Call would schedule to be released on January 24, 2025, but on December 23, Netflix Korea posted a list of titles scheduled to be released in January 2025 on their official social media accounts and the series was listed under coming soon. Two weeks later, Netflix officially confirmed the release date.

In October 2026, news came that Severe Trauma Center Season 2 and Season 3 would be produced simultaneously.

Reception Critical response Pierce Conran of South China Morning Post rated the series four out of five and praised Ju Ji-hoon's acting, "central to the show's success is Ju, who has seldom been better as the picture-perfect Baek Kang-hyuk, an enormously attractive role that complements his strong points." He added that "The Trauma Code: Heroes on Call is a show that takes the medical action drama formula honed by shows like Dr. Romantic and both pares it down and amps it up. The characters are simpler, as is the drama, with the focus squarely on scratching viewers' itch for heroic highs."

Viewership The word-of-mouth success of The Trauma Code: Heroes on Call is reflected in its numbers. From January 27 to February 2, the show recorded 11.9 million views (calculated by dividing total watch hours by the runtime), reaching the first place of Netflix's global non-English TV rankings just 10 days after its release. The series topped the charts in 17 countries, including Korea, Thailand, Taiwan, Malaysia, Chile and Peru, and entered the Top 10 in 63 countries, including New Zealand, France, Italy, Mexico, Brazil, India, Japan and Egypt. According to Good Data Corporation, a Korean content analytics firm, the show's buzz surged by 140 percent compared to the previous week, making it 2.5 times more talked about than Squid Game season 2.

Accolades Award ceremony Year Category Nominee Result APAN Star Awards 2025 Best Director Lee Do-yoon Top Excellence Award, Actor in a Miniseries Ju Ji-hoon Excellence Award, Actor in a Miniseries Choo Young-woo Excellence Acting Award, Actor Yoon Kyung-ho Best New Actress Ha Young Baeksang Arts Awards 2025 Best Drama The Trauma Code: Heroes on Call Best Director Lee Do-yoon Best Actor Ju Ji-hoon Best Supporting Actor Yoon Kyung-ho Best New Actress Ha Young Blue Dragon Series Awards 2025 Best Drama The Trauma Code: Heroes on Call Best Actor Ju Ji-hoon Best Supporting Actor Yoon Kyung-ho Best New Actor Choo Young-woo Best New Actress Ha Young Global OTT Awards 2025 Best Lead Actor Ju Ji-hoon Best Newcomer Actor Choo Young-woo Seoul International Drama Awards 2025 Outstanding Korean Drama The Trauma Code: Heroes on Call Outstanding Korean Actor Ju Ji-hoon

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