Moon Sang-hoon

as Park Seung-wu (1 episode)

as Audition director

as Hee-chan

as Self (4 episodes)

as Necktie (segment "Time of Yeonghwa")

as MC

as Self (1 episode)

as Seok-jin

as Self (12 episodes)

as Moon Sang-hoon

as Mr. Cha

as Jeong Hyo-bong (1 episode)

as Self - Panelist (10 episodes)

as Kim Jeong-hun (1 episode)

as Hyun-woo

as Self (1 episode)

as Self - Host (1 episode)

as Kim Ru-ri (6 episodes)

as No Jung-yeol (2 episodes)

as Kim Jung-ho (11 episodes)

as Dr. Kim (12 episodes)