Name	Known for
Kim Byeong-Ok Gye Sang-Soo (as Byung-Ok Kim) Gye Sang-Soo (as Byung-Ok Kim) See fewer	Oldboy (2003)
Kwak Dong-yeon Hwang Gyung-Pil Hwang Gyung-Pil See fewer	Inspiring Generation (2014)
Hwang Gyoo-In Park Bin-Soo Park Bin-Soo See fewer	Puck! (2016)
Jung Hae-kyun Heo Myung-Geun (as Hae-Kyun Jung) Heo Myung-Geun (as Hae-Kyun Jung) See fewer	Along With the Gods: The Two Worlds (2017)
Kil Hae-yeon Gyung-Pil's mother (as Hae-yeon Kil) Gyung-Pil's mother (as Hae-yeon Kil) See fewer	Heard It Through the Grapevine (2015)
Seo Han-Gyeol Dong-Jin Dong-Jin See fewer	Second 20s (2015)
Jo Hie-bong Loan Shark (as Jo Hee-Bong) Loan Shark (as Jo Hee-Bong) See fewer	Blind (2011)
Lee Joon-hyuk Im Wan-Yong (as Joon Hyuk Lee) Im Wan-Yong (as Joon Hyuk Lee) See fewer	Love in the Moonlight (2016)
Heo Joon-seok Drunk man Drunk man See fewer	Sijipeuseu: The Myth (2021)
Sul Jung-hwan Suk-Won (as Sul Jung-Hwan) Suk-Won (as Sul Jung-Hwan) See fewer	Drama Special (2010)
Lee Kang-Min Hwan-Seo Hwan-Seo See fewer	Not Yet Thirty (2021)
Lee Kwang-soo Jo Joon-Man (as Kwang-Soo Lee) Jo Joon-Man (as Kwang-Soo Lee) See fewer	Inseparable Bros (2019)
Yoon Seo Hyun Gyung-Pil's father Gyung-Pil's father See fewer	Mouse (2021)
Lee Si-won Ga Yeo-Eun Ga Yeo-Eun See fewer	Beautiful Mind (2016)
Soo-Hyun Son Nam Sung-Sil Nam Sung-Sil See fewer	Missing Noir M (2015)
Kim Soo-oh Nu-Ri (as Kim Jin-Woo) Nu-Ri (as Kim Jin-Woo) See fewer	Flower of Evil (2020)
Park Yeong-soo Ace Player of Hockey Club (as Park Yeong-Soo) Ace Player of Hockey Club (as Park Yeong-Soo) See fewer	Sector 7 (2011)
Jo Yong-Hoon Byung-Chul Byung-Chul See fewer	Puck! (2016)
Jo Yoon-woo Pal-Bong Pal-Bong See fewer	Flower Boy Ramyun Shop (2011)