Name	Known for
Jung Il-woo Lee Rin (as Jung Il-Woo) Lee Rin (as Jung Il-Woo) See fewer	Diary of a Night Watchman (2014)
Ko Sung-hee Do-ha (as Sung-hee Go) Do-ha (as Sung-hee Go) See fewer	While You Were Sleeping (2017)
Yunho Jung Moo-seok Moo-seok See fewer	Queen of Ambition (2013)
Moon Bo-ryung Mo Yeon-wol (as Bo Ryung Moon) Mo Yeon-wol (as Bo Ryung Moon) See fewer	Diary of a Night Watchman (2014)
Ko Chang-seok Former Minister Jung-seung (as Chang-Seok Ko) Former Minister Jung-seung (as Chang-Seok Ko) See fewer	Lady Vengeance (2005)
Kim Heung-soo Gi-san (as Heung-soo Kim) Gi-san (as Heung-soo Kim) See fewer	Emperor of the Sea (2004)
Lee Jae-yong Park Soo-jong Park Soo-jong See fewer	Save the Green Planet! (2003)
Kang Ji-woo Rang (as Ji-Woo Kang) Rang (as Ji-Woo Kang) See fewer	The Silent Sea (2021)
Lee Se-chang Eunuch Song (as Se-chang Lee) Eunuch Song (as Se-chang Lee) See fewer	Hera Purple (2001)
Kim Sung-oh Sadam Sadam See fewer	The Man from Nowhere (2010)
Yoon Tae-young Jo Sang-heon (as Tae-young Yoon) Jo Sang-heon (as Tae-young Yoon) See fewer	Late Night Hospital (2011)
Seo Ye-ji Park Soo-ryeon Park Soo-ryeon See fewer	It's Okay to Not Be Okay (2020)
Seo Yi-Sook Dowager Queen Chungsoo Dowager Queen Chungsoo See fewer	Six Flying Dragons (2015)