Lee Dong-gun

as Lee Moo-gae (1 episode)

as Jin Tae-jeon (12 episodes)

as Hong Sung-joon (2 episodes)

as Lee Tae-joon (16 episodes)

as Ji Kang-Woo (32 episodes)

as Seo In-woo (32 episodes)

as Kim Do-Jin (16 episodes)

as Kim Do-jin (16 episodes)

as Lee Yoong / King Yeonsangun (20 episodes)

as Lee Dong-Jin (54 episodes)

as Zhou Yu Teng (24 episodes)

as Han Yeol (16 episodes)

as Kim Shin (16 episodes)

as Kim Bum-sang (17 episodes)

as Park Young-jun

as Jung Tae (4 episodes)

as Ban Ha-jin (16 episodes)

as Young-Bin

as Han Dong-joo / Yuichi Yamamoto (18 episodes)

as Yoon Soo-hyuk (20 episodes)

as Kwon Hyeok-Jun (16 episodes)

as Park Sang-goo (118 episodes)

as Kang Min-Suk (16 episodes)