Name	Known for
Chae Rim Oh Dal-Ja Oh Dal-Ja See fewer	Dal Ja's Spring (2007)
Lee Min-ki Kang Tae-Bong Kang Tae-Bong See fewer	Tidal Wave (2009)
Lee Hye-young Wi Sun-Joo (as Hye-young Lee) Wi Sun-Joo (as Hye-young Lee) See fewer	Big Bet (2022)
Hyun-Woo Lee Uhm Ki-Joong Uhm Ki-Joong See fewer	Ruby Ring (2013)
Kong Hyeong-jin Shin Se-Do (as Hyeong-jin Kong) Shin Se-Do (as Hyeong-jin Kong) See fewer	Tae Guk Gi: The Brotherhood of War (2004)
Kim Jae-Wook Choon-Ha Choon-Ha See fewer	The 1st Shop of Coffee Prince (2007)
Kwon Ki-sun Son Young-Shim (as Ki-Sun Kwon) Son Young-Shim (as Ki-Sun Kwon) See fewer	Winter Love (1980)
In-tae Kim Se-Do's father Se-Do's father See fewer	Will It Snow at Christmas? (2009)
Lee Kyung-jin Jung Jung-Ae (as Kyung-jin Lee) Jung Jung-Ae (as Kyung-jin Lee) See fewer	Ayla: The Daughter of War (2017)
Kim Na-woon Ko Soon-Ae (as Na-woon Kim) Ko Soon-Ae (as Na-woon Kim) See fewer	Mr. Sunshine (2018)
Kim Sung-kyum Tae Bong's grandfather Tae Bong's grandfather See fewer	Entertainer (2016)
Seo Yeong-hie Jang Soo-Jin (as Seo Young-Hee) Jang Soo-Jin (as Seo Young-Hee) See fewer	The Chaser (2008)
Kil Yong-woo Kang Soon-Hong (as Yong-woo Kil) Kang Soon-Hong (as Yong-woo Kil) See fewer	Red High Heels (1986)
Seo Young Hong Ji-hee Hong Ji-hee See fewer	Miss Butcher (2017)
Jang Young-nam Ki-Joong's ex-wife Ki-Joong's ex-wife See fewer	A Werewolf Boy (2012)
Kim Young-ok Lee Kkeut-Soon, Dal-ja's grandmother (as Yeong-ok Kim) Lee Kkeut-Soon, Dal-ja's grandmother (as Yeong-ok Kim) See fewer	Rich Family's Son (2018)