Jo Min-ki

as King Taejo

as Jeong Byung-kwon

as Kyung-ho

as Kang Byeong-chul

as Soo-yeong

as Seo Jin-ki

as Moon Il-seok

as Section Chief

as Park Tae-hwa

as Yun Sang-woo

as Shin Tae-hwan

as Dr. Han Ji-woo

as 박태준

as Section chief Jo

as Self

as Jung Yeong-Jun

as King Youngjo

as Han Jung-hwan

as Jung Ji-suk

as 吕时宇

as Kim Nam-jin

as 이묵현

as Won-joong / Kyung-dong

as Jeong Cheol-min

as Kim Moon-soo

as Hong Hae-sung