Name	Known for
Lee Jang-woo Oh Ja-Ryong Oh Ja-Ryong See fewer	My Only One (2018)
Oh Yeon-Seo Na Gong-Joo (as Yeon-Seo Oh) Na Gong-Joo (as Yeon-Seo Oh) See fewer	Jang Bo Ri Is Here (2014)
Jin Tae-hyun Jin Yong-Suk (as Tae-Hyun Jin) Jin Yong-Suk (as Tae-Hyun Jin) See fewer	Joint Security Area (2000)
Seo Hyeon-jin Na Jin-joo (as Hyeon-jin Seo) Na Jin-joo (as Hyeon-jin Seo) See fewer	Another Miss Oh (2016)
Hyun-seo Choi Yoo-Mi Yoo-Mi See fewer	Strong Girl Bong-soon (2017)
Ryu Dam Oh Jae-ryong (as Dam Ryu) Oh Jae-ryong (as Dam Ryu) See fewer	The Great Queen Seondeok (2009)
Young Jae Dok-Go Na Sang-ho (as Koyeong-jae Dok) Na Sang-ho (as Koyeong-jae Dok) See fewer	The Great Queen Seondeok (2009)
Lee Hwi-hyang Lee Gi-ja (as Whee-Hyang Lee) Lee Gi-ja (as Whee-Hyang Lee) See fewer	A Love (2007)
Kim Hye-Ok Ko Sung-sil Ko Sung-sil See fewer	Family Ties (2006)
Han Jin-hee Oh Man-soo Oh Man-soo See fewer	My Sassy Girl (2001)
Jung-Do Kim Gwang-soo Gwang-soo See fewer	Here Comes Mr. Oh (2012)
Chang Mi-hee Jang Baek-ro (as Mi-hie Jang) Jang Baek-ro (as Mi-hie Jang) See fewer	Praise of Death (1991)
Choi Min Kang Sung-Sik Kang Sung-Sik See fewer	Spring, Summer, Fall, Winter... and Spring (2003)
Ho-rin Yoo Kim Ma-ri Kim Ma-ri See fewer	Ride Away (2008)
Kim Young-ok Chun Geum-soon Chun Geum-soon See fewer	Rich Family's Son (2018)