Why Kim Seon-ho won't be cast in 'The Trauma Code: Heroes on Call' Season 2

With the Netflix original series 'The Trauma Code: Heroes on Call' Season 2 expected to begin full-scale filming this October, original author Lee Nak-jun has shared candid insights regarding production status and casting. Notably, he explained why actor Kim Seon-ho is not being considered for the role, citing a mismatch in the character's age range, while also mentioning Lee Do-hyun and Song Kang to the interest of fans.

During the 'World of Occupations' special of the KBS2 variety program 'Malja Show' aired on the 24th, Lee appeared to discuss his web novel 'The Trauma Code: Heroes on Call.' An otolaryngologist by profession, Lee has been writing web novels for approximately 10 years under the pen name 'Hansaniga.' He has expanded his influence by creating content rooted in medical expertise and currently engages with a massive audience as a creator with 1.42 million subscribers.

Regarding the production of Season 2, Lee stated, "The production team is currently scouting filming locations," adding, "It looks like full-scale filming will commence around this coming October." While detailed schedules are not yet finalized, his remarks signal that the series has entered a concrete production phase, heightening anticipation among fans.

Casting discussions also took center stage. When an audience member recommended Kim Seon-ho, Lee responded that while he "personally likes actor Kim Seon-ho very much," the character's age range does not align with the actor. He explained that since the character is intended to be younger, personal preference must remain separate from finding the right fit for the role.

Instead, Lee mentioned Lee Do-hyun and Song Kang as actors he personally favors. However, he clarified that this is merely "virtual casting" based on his vision for the characters and does not imply that their participation has been confirmed. Final casting decisions are made through negotiations between production companies, directors, and talent agencies.

'The Trauma Code: Heroes on Call' is a medical drama following Baek Kang-hyuk, a genius surgeon with battlefield experience, as he takes charge of a struggling university hospital trauma team. The Netflix series, starring Ju Ji-hoon as Baek Kang-hyuk, gained popularity by blending the high-stakes urgency of medical environments with internal team conflicts through engaging genre storytelling.

The series is distinguished by its balance of medical realism and narrative entertainment. In real-world medical systems, treating severe trauma requires a multi-layered collaborative effort—ranging from emergency transport and surgery to anesthesia and intensive care—rather than relying solely on a single doctor. Lee's professional medical background is credited with providing the original work with its deep sense of authenticity.

Season 1 heightened the tension of the medical genre by exploring the clash between the fundamental mission to save patients and the pragmatic interests of hospital organizations. Consequently, the primary interest for Season 2 lies in how the series will expand its universe through new medical conflicts. With the original author now sharing production progress, interest is expected to surge as more news regarding filming and casting emerges.

The significance of Lee's remarks lies in his emphasis on character integrity. By prioritizing the character's age and setting as primary casting criteria, it appears that 'The Trauma Code: Heroes on Call' Season 2 will value the synergy between actor and character over pure stardom.

Key upcoming information includes whether the core cast from Season 1, including Ju Ji-hoon, will return and which new characters will be introduced. If filming proceeds this October, the production outline and casting details are expected to materialize in stages. Fans are eager to see how Season 2 expands the world established in the first season and how the "younger" characters envisioned by Lee will appear on screen.