Yoon Kye-sang as Kang Min-jae

Kim Min-jung as Hwangbo Soo-jin

Do Ji-won as Jung-sook

On Ju-wan as Lee Chang-seob

Lee Joon-gi as Dong-wan

Lee Jeong-seop as Bae Do-il

Kang Do-han as Eom Jong-seok

Kim Dong-wook as Kim Ki-tae

Cho Han-hee as Oh Hyang-ja

Park Geu-ri-na as Cha Seung-eon

Choi Jeong-in as Room 108

Kwak Min-ho as Joon-seok

Lee Sung-min as Mr. Kim

Kim Eui-sung as Soo-in

Lee Mi-do as Student

Kim Kap-soo as Teacher

Yoon Taek as Dancer

Lee Jong-won as Exercising man

Yoo In-soo as Police