# Lovelyz’s Jeong Yein Steps Into the OR: New Nurse Cheon Jang-mi for The Trauma Code Seasons 2 and 3

URL: https://technosports.co.in/lovelyzs-jeong-the-trauma-code/  
Published: 2026-09-29  
Updated: 2026-09-29  
Author: Reetam Bodhak

The trauma team has a new nurse. After weeks of speculation, Netflix has confirmed that singer-turned-actress **Jeong Yein** is taking over a key role in the hit medical drama.

### The Casting Confirmation

Jeong Yein will play nurse **Cheon Jang-mi**, a role Ha Young originated in Season 1, for the upcoming second and third seasons. Earlier this month, reports of her casting were denied by her agency. Then on September 29, MyDaily reported that key cast members, Jeong Yein among them, were set for their first script reading. A Netflix representative subsequently confirmed she was selected as Ha Young’s successor.

![The Trauma Code](https://technosports.co.in/wp-content/uploads/2026/09/trauma-c2a-1.jpeg)

### Why the Role Changed Hands?

Ha Young stepped down after allegations surrounding her great-grandfather’s alleged involvement in activities came to light. The production team then held auditions to find a replacement.

### The Trauma Code : Overview

| Detail | Info |
| --- | --- |
| **Show** | The Trauma Code: Heroes On Call |
| **Platform** | Netflix |
| **Lead** | Ju Ji-hoon as trauma surgeon Baek Kang Hyuk |
| **Also starring** | Choo Young-woo |
| **New cast** | Jeong Yein (replacing Ha Young) |
| **Seasons 2 and 3** | Filming reportedly begins next month |

### Who Is Jeong Yein?

She debuted in 2014 as a member of girl group [Lovelyz](https://en.wikipedia.org/wiki/Lovelyz) before gradually moving into acting. Her credits include the 2017 web drama *The Blue Sea*, tvN’s *Criminal Minds*, and the 2023 series *Na Ra the Socialite Wannabe*, plus stage roles.

### What to Expect?

The first season followed Baek Kang Hyuk as he rebuilt a struggling trauma care team. With Seasons 2 and 3 reportedly shooting together, fans can look forward to a big continuous storyline. It’ll be interesting to see how Jeong Yein reshapes Jang-mi’s place in the team.

Stay updated with our [K-drama news](https://technosports.co.in/) and browse more [Netflix and OTT updates](https://technosports.co.in/).

### FAQs

### **Who replaces Ha Young in The Trauma Code?**

  
Lovelyz’s Jeong Yein takes over the role of nurse Cheon Jang-mi.

### **When do Seasons 2 and 3 start filming?**

  
Filming is reportedly scheduled to begin next month, with both seasons shooting together.