Name	Known for
Jo Bok-rae Jo Sung-Hyun Jo Sung-Hyun See fewer	C'est Si Bon (2015)
Sung Byoung-sook Suk-Ho's mother (as Byoung-Sook Sung) Suk-Ho's mother (as Byoung-Sook Sung) See fewer	Tidal Wave (2009)
Minyeong Choi Lee Kyung-Soo (as Min-young Choi) Lee Kyung-Soo (as Min-young Choi) See fewer	Entertainer (2016)
Jeong Gyu-su Suk-Ho's father Suk-Ho's father See fewer	Sympathy for Mr. Vengeance (2002)
Kwon Hae-hyo Entertainment Bureau Director Entertainment Bureau Director See fewer	The Day After (2017)
Kim Ho-chang Manager (as Ho-Chang Kim) Manager (as Ho-Chang Kim) See fewer	Entertainer (2016)
Lee Hyeri Jung Geu-rin Jung Geu-rin See fewer	Reply 1988 (2015)
Ahn Hyo-seop Ji-Noo Ji-Noo See fewer	Dr. Romantic (2016)
Cho Jae-ryong Director Jung (as Jae-ryong Cho) Director Jung (as Jae-ryong Cho) See fewer	Pieta (2012)
Chae Jeong-an Yeo Min-Joo (as Jeong-an Chae) Yeo Min-Joo (as Jeong-an Chae) See fewer	The 1st Shop of Coffee Prince (2007)
Choi Ji-na Jae-Hoon's mother (as Ji-na Choi) Jae-Hoon's mother (as Ji-na Choi) See fewer	Entertainer (2016)
Yeon-ho Jo Na Chan-Hee Na Chan-Hee See fewer	Mouse (2021)
L. Joe Seo Jae-Hoon Seo Jae-Hoon See fewer	Entertainer (2016)
Heo Joon-seok Kim Joo-Han Kim Joo-Han See fewer	Sisyphus: The Myth (2021)
Oh Jung-se Prosecutor (as Oh Jung-Se) Prosecutor (as Oh Jung-Se) See fewer	The Call (2020)
Kim Kwang-hyeon Police Officer (as Kwang-Hyeon Kim) Police Officer (as Kwang-Hyeon Kim) See fewer	The Outlaws (2017)
Kim Kyeong-ryong Ji-Young's father (as Kyeong-ryong Kim) Ji-Young's father (as Kyeong-ryong Kim) See fewer	Entertainer (2016)
Jeong Man-sik Jang Man-Sik (as Man-sik Jeong) Jang Man-Sik (as Man-sik Jeong) See fewer	The Yellow Sea (2010)
Kang Min-hyuk Ha-neul Ha-neul See fewer	Heirs (2013)
Gong Myoung Kayle Kayle See fewer	Extreme Job (2019)
Park Myung-shin Jo Ha-Neul's mother Jo Ha-Neul's mother See fewer	Train to Busan (2016)
Ahn Nae-sang CEO Byun CEO Byun See fewer	Mouse (2021)
Jeon No-min Lee Joon-Suk (as No-min Jeon) Lee Joon-Suk (as No-min Jeon) See fewer	The Emperor: Owner of the Mask (2017)
Maeng Sang-hun Jae-Hoon's father (as Sang-hun Maeng) Jae-Hoon's father (as Sang-hun Maeng) See fewer	Entertainer (2016)
Kim So-hye Choi Ga-eun Choi Ga-eun See fewer	Dream High (2011)
Park So-Hyun Radio DJ Radio DJ See fewer	Entertainer (2016)
Ahn Suk-hwan Kim Sung-Nam Kim Sung-Nam See fewer	The Road Taken (2003)
Ji Sung Sin Seok-ho (as Seong Ji) Sin Seok-ho (as Seong Ji) See fewer	All In (2003)
Kim Sung-kyum Min-Joo's father Min-Joo's father See fewer	Entertainer (2016)
Lee Tae-sun Na Yeon-Soo (as Tae-sun Lee) Na Yeon-Soo (as Tae-sun Lee) See fewer	Hotel Del Luna (2019)
Yoon-seo Lee Ji-Young Lee Ji-Young See fewer	In Our Prime (2022)
Ki-won Yun PD PD See fewer	Entertainer (2016)