Name	Known for
Joo Won Park Si-on Park Si-on See fewer	Bridal Mask (2012)
Moon Chae-won Cha Yoon-seo Cha Yoon-seo See fewer	War of the Arrows (2011)
Joo Sang-uk Kim Do-han Kim Do-han See fewer	Giant (2010)
Kim Min-seo Yoo Chae-gyeong (as Min Seo Kim) Yoo Chae-gyeong (as Min Seo Kim) See fewer	Sungkyunkwan Scandal (2010)
Chun Ho-jin Choi U-seok Choi U-seok See fewer	I Saw the Devil (2010)
Kwak Do-won Kang Hyeon-tae Kang Hyeon-tae See fewer	The Wailing (2016)
Lee Ah-rin Lee Ga-gyeong Lee Ga-gyeong See fewer	Good Doctor (2013)
Yoon Bong-gil Hong Gil-nam (as Bong-gil Yoon) Hong Gil-nam (as Bong-gil Yoon) See fewer	The King's Face (2014)
Ko Chang-seok Cho Jeong-mi Cho Jeong-mi See fewer	Lady Vengeance (2005)
Kim Chang-wan Chairman Jeong Chairman Jeong See fewer	My Love from Another Star (2013)
Oh Eun-chan Cha Dong-jin Cha Dong-jin See fewer	Iris (2009)
Jo Hie-bong Ko Chung-man Ko Chung-man See fewer	Blind (2011)
Jeong Ho-geun Park Chun-Seong (as Ho-geun Jeong) Park Chun-Seong (as Ho-geun Jeong) See fewer	Good Doctor (2013)
Seo Hyun-chul Byeong-su Byeong-su See fewer	The Gifted Hands (2013)
Uhm Hyun-kyung Na In-yeong Na In-yeong See fewer	Second Husband (2021)
Lee Jang-Kyung Kim Ye-eun Kim Ye-eun See fewer	Good Doctor (2013)
Yoo Je-gun Park Ho-seok Park Ho-seok See fewer	Good Doctor (2013)
Wang Ji-won Kim Seon-ju (as Ji-won Wang) Kim Seon-ju (as Ji-won Wang) See fewer	Still 17 (2018)
Jeon Joon-Hyeok Park Si-deok Park Si-deok See fewer	Good Doctor (2013)
Lee Ki-yeol Lee Hyeok-pil (as Ki-yeol Lee) Lee Hyeok-pil (as Ki-yeol Lee) See fewer	Sweet Spy (2005)
Ha Kyu-won Hye-jin Hye-jin See fewer	Good Doctor (2013)
Jin Kyung Nam Ju-yun Nam Ju-yun See fewer	Veteran (2015)
Jeong Man-sik Kim Jae-jun Kim Jae-jun See fewer	The Yellow Sea (2010)
Yoon Park Woo Il-gyu Woo Il-gyu See fewer	What's with This Family (2014)
Choi Ro-woon Park Si-on (young) Park Si-on (young) See fewer	Miracle in Cell No. 7 (2013)
Ahn Sung-hoon Lee U-ram Lee U-ram See fewer	Good Doctor (2013)
Lee Won-jae Anesthesiologist Anesthesiologist See fewer	The Chaser (2008)
Yun Yoo-sun O Gyeong-ju O Gyeong-ju See fewer	The Story of Two Women (1994)
Na Young-hee Lee Yeo-won Lee Yeo-won See fewer	Forgotten (2017)
Kim Young-kwang Han Jin-uk Han Jin-uk See fewer	On Your Wedding Day (2018)