Park Won-sang

as King (10 episodes)

as Hyeong-rack

as Na Jin-chul (2 episodes)

as Na Dong-ho (2 episodes)

as Byeong-ho

as Nam Man-seok (5 episodes)

as Go Jae-young

as Judge

as Se-mi's Father

as Choi Young Sik [Choel Woong's father] (16 episodes)

as MC

as Shin Yeong-Su (20 episodes)

as Paeng Soo-gon (16 episodes)

as Hyeon-doo

as Choi Yong-geun (16 episodes)

as Park Moon-shik (16 episodes)

as Lee Joon Hee (32 episodes)

as Jo Dong-chul

as Han Jong-hun

as Oh Seok-Joon (32 episodes)

as ballet company director (1 episode)

as Jin-young

as Koo Dong-Young (32 episodes)