친구누나

Park Cho-hyeon

Jo Hui-jin

Min Joon

Oh Jun-soo

So Yoon

Choi Mi-na

주인철

Han Jae-suk

Ah Ri

Jun-soo's Mother (Cameo)

Seo Joon-yeol

Jo Hui-kyu

Lee Kyeong-joon

Head of department (부장)

Hong Doo-ri

Stockings girl (스타킹 녀)