by Lily Alice, April 12, 2023
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 SBS released the character posters of the extensive cast playing the characters of the staff of Doldam Hospital. 

Kim Min Jae will reprise the role of nurse Park Eun Tak. Eun Tak met Kim Sa Bu after being admitted as a patient at Doldam Hospital and then went to nursing school to eventually work at the hospital.  

Jin Kyung is the head nurse Oh Myung Shim, who seems tough from the outside but is a warm-hearted lady who sincerely cares about patients and the people around her. And Im Won Hee will again be seen as Jang Gi Tae, head of the administrative department who is also the ex-husband of head nurse Oh Myung Shim.   

Yoon Bora is nurse Joo Hyung Mi and Uhm Hyun Jung is nurse Jung Ji Ahn of ER department of Doldam Hospital. 

Shin Dong Wook will reprise his role as orthopaedic surgeon Bae Moon Jung, and So Ju Yeon will return as the bright ER doctor Yoon Ah Reum 

Ko Sang Ho will play Yang Ho Joon, a general surgeon who is often seen clashing with Seo Woo Jin (Ahn Hyo Seop) and Cha Eun Jae (Lee Sung Kyung).  

Byun Woo Min returns as Nam Do Il, the doctor in charge of anesthesiology and Kim Joo Heon as Park Min Guk, who was seen as Director of Geosan University Hospital in season 2.  

Yoon Na Moo will reprise his role as Jung In Soo, the ER doctor who first transferred to Doldam Hospital in season 1 and since has stayed at the humble countryside branch.  

Then, we have the new additions of Lee Shin Young as Jang Dong Hwa (the youngest doctor at Doldam Hospital), Lee Hong Nae as Lee Sun Woong (a former military doctor, and Lee Kyung Young. More details are yet to come on the role Lee Kyung Young will play in the series.