Do Sang-woo

as Lim Seung-jae (13 episodes)

as Kang Hwi-rim (12 episodes)

as Choi Cheol-min (1 episode)

as Park Do-hyeon (1 episode)

as Kim Hyung Joo (16 episodes)

as Seo Yun-o (10 episodes)

as Cho Shi-young (16 episodes)

as Crown Prince Sado (17 episodes)

as Jo Seung-Jun (16 episodes)

as Lee Jae Hwa (16 episodes)

as Jang Woo-Sang (16 episodes)

as Joo Se Hoon (51 episodes)

as Jo Gun (12 episodes)

as Yoo Tae-joon (20 episodes)

as Ma Do-jin (40 episodes)

as Choi Ho (16 episodes)

as Self (15 episodes)

as Chi-Soo's friend (16 episodes)