Name	Known for
Jo Jung-suk Lee Ik Joon Lee Ik Joon See fewer	Architecture 101 (2012)
Yoo Yeon-seok Ahn Jeong Won Ahn Jeong Won See fewer	Oldboy (2003)
Jung Kyung-ho Kim Joon-wan Kim Joon-wan See fewer	Missing 9 (2017)
Kim Dae-myung Yang Seok Hyung Yang Seok Hyung See fewer	Misaeng (2014)
Jeon Mi-do Chae Song Hwa Chae Song Hwa See fewer	Hospital Playlist (2020)
Shin Hyeon-bin Jang Gyeo Wool Jang Gyeo Wool See fewer	He's on Duty (2010)
Ahn Eun-jin Choo Min-ha Choo Min-ha See fewer	My Dearest (2023)
Jung Moon-sung Do Jae Hak Do Jae Hak See fewer	Hospital Playlist (2020)
Kwak Sun-young Lee Ik-soon Lee Ik-soon See fewer	Moving (2023)
Park Bo-kyung Lee Chang Hak's Wife Lee Chang Hak's Wife See fewer	The Gangster, the Cop, the Devil (2019)
Jung Bo-min Patients family Patients family See fewer	Sweet & Sour (2021)
Shin Do-Hyun Bae Joon-hee Bae Joon-hee See fewer	The Recruit (2022)
Jang Ha-Eun Brain hemorrhage patient's daughter Brain hemorrhage patient's daughter See fewer	Death to Snow White (2024)
Kim Hae-sook Jeong Ro-sa Jeong Ro-sa See fewer	Thirst (2009)
Song Hoon Patient Patient See fewer	The Wailing (2016)
Kwon Hyuk-soo Jung Min's father Jung Min's father See fewer	Half-Life 2 (2004)
Bae Hyun-Sung Jang Hong Do Jang Hong Do See fewer	Hospital Playlist (2020)
Lee Ji-hoon Professor Lee Ji-hoon Professor Lee Ji-hoon See fewer	Trigger (2025)
Kim Ji-sung Nurse Han Seung-joo Nurse Han Seung-joo See fewer	SF8 (2020)
Lee Ji-Won Han Hyeon-hee (nurse) Han Hyeon-hee (nurse) See fewer	The First Responders (2022)
Yang Jo-ah Hwang Jae-shin Hwang Jae-shin See fewer	Hotel Del Luna (2019)
Kim Joon Lee Woo Joo Lee Woo Joo See fewer	Hospital Playlist (2020)
Kim Jun-han Ahn Chi-yong Ahn Chi-yong See fewer	Good Partner (2024)
Kim Kang-min Im Chang Min Im Chang Min See fewer	Hospital Playlist (2020)
Kim Kap-su Joo Jong-soo Joo Jong-soo See fewer	A Tale of Two Sisters (2003)
Kim Kyung-min Mr. Jeong (as Kim Kyeong-min) Mr. Jeong (as Kim Kyeong-min) See fewer	Dreaming of a Freaking Fairytale (2024)
Jeong Mi-Seong Ik-joon's patient Ik-joon's patient See fewer	The Man from Nowhere (2010)
Nam Sang-ji Cirrhosis patient's wife Cirrhosis patient's wife See fewer	Ashfall (2019)
Kim Seon-hwa Seok Hyeong's aunt Seok Hyeong's aunt See fewer	Big Mouth (2022)
Moon Tae-yu Yong Seok Min Yong Seok Min See fewer	A Taxi Driver (2017)
Cho Yi-hyun Jang Yoon-bok Jang Yoon-bok See fewer	School 2021 (2021)
Ha Yoon-kyung Heo Seon-bin Heo Seon-bin See fewer	Time to Hunt (2020)
Choi Young-woo Cheon Myeong-tae Cheon Myeong-tae See fewer	The Silent Sea (2021)