Jung Jin-young

as Jo Yoo-gyeom (1 episode)

as Self (2 episodes)

as Daesung

as Kim Ho-hee, Theme Song Performance

as Jeon Dong Min (12 episodes)

as Self (1 episode)

as Koo Jin-woo

as Daniel Han (12 episodes)

as Hae-jun's son from the future (1 episode)

as Mentor (11 episodes)

as Self (1 episode)

as Panelist (13 episodes)

as Kang Seon-ho (16 episodes)

as Park Chan-young (16 episodes)

as Seo Do-Hyun (16 episodes)

as Daniel (10 episodes)

as Kim Dong-hyun

as Jinyoung (1 episode)

as Oh Dong-Kyung

as Self (1 episode)

as Kim Yoon-seong (18 episodes)

as Self (2 episodes)

as Geum Kang San (10 episodes)