Seo Dong-won

General Manager No (Eps 2, 6) • 2 episodes

Bae Kook-seong

Detective Jung

Lee Gi-seok • 13 episodes

Cha Young-Min • 16 episodes

Detective Seo

Detective Seo

General Dung

Marco • 2 episodes

Jung Joong-Hee • 32 episodes

Doctor Kim • 6 episodes

Woo-jin's Employee • 6 episodes

Jo Jin-bae • 32 episodes

Kim Jung-bon • 16 episodes

So Jeong Ha • 2 episodes

Aquarium Manager • 20 episodes

Yi Bang-gwa • 50 episodes

Park Sang Deuk • 20 episodes

Song Ha-Jin • 2 episodes

Jeom Baek-i

Hotel Receptionist

Jeong-cheol

Park Young-bae • 1 episodes

Self • 1 episodes

Sad Man

Kang Min • 20 episodes

Seong-hun

안박사 • 1 episodes

Self • 2 episodes

Chang-hee

Army Deserter

Jang-jun (young)