Kwak Si-yang

as Koo Tae-rim (1 episode)

as Seo Joo-hyuk (14 episodes)

as Matsuda Daiki

as Kim Shin-won (12 episodes)

as Ki-hoon

as Jo Soo-gwang

as Jin Seung-ju (17 episodes)

as Gong Soo-chul (18 episodes)

as Cha Jae-hyeok (12 episodes)

as Prince Su-yang (16 episodes)

as Choi Jin Soo (6 episodes)

as Self (1 episode)

as Yoo Min-hyuk (16 episodes)

as Park Chan-nyeon

as Koo Dong-Taek (32 episodes)

as Tae-ho

as Self (1 episode)

as Kim Nam Il [Landlord's son] (6 episodes)

as Baek Tae-min / Heo Young-min (16 episodes)

as MC (29 episodes)

as Park Joon-Woo (20 episodes)