Man-soo

Song Tae-seob (1 episode)

Self

Cho Hyun-ju / Player 120 (13 episodes)

Han Jae-woo

Self (1 episode)

Self (1 episode)

Yoon Eun-sung (16 episodes)

Yang Jae-seok (2 episodes)

Park Sang-yoon (12 episodes)

Myung-ho

Self (1 episode)

Eun Jae-won (12 episodes)

Jeon Jae-jun (16 episodes)

Yu-bin

Ko Tae Hoon

Prince Yangnyeong (2 episodes)

(1 episode)

Seo Gong-myung (32 episodes)

Crown Prince Yi Hyang

Seo In Woo (16 episodes)

Tak Soo-Ho (32 episodes)

Jang Go-Rae (106 episodes)

Go Tae-hoon (1 episode)

Na Pil-Seung (1 episode)

Doh Yu-bin (1 episode)

Jason (uncredited)

Cha Do-Jin (16 episodes)

Self (1 episode)

Sung-hoon

Park Gon (20 episodes)

Na Sung-Sik (32 episodes)

Secretary Cha (24 episodes)

Gil Yoo (50 episodes)