Kang Min-joo (as Hie-ae Kim)
Go Sang-shik (as Jin-hee Ji)
Park Joon-woo
Go Mi-rye (as Seul-gi Kim)
Go Sang-hee (as Su-young Jung)
Go Ye-ji
Park Hoon (as Tae-ui Hong)
Han Song-Yi
Shin Suk-Ki
PD (as Dong-gyun Kim)
Na Choon-Woo (as Hee-kyung Moon)
Oh Young-ae (as Hye Eun Lee)
Park Cheon-soo (as Hyeong-Cheol Lee)
Jang Eun-Ho
Nam Ki-Chul
Dokgo Bong (as Ji-ru Sung)
Koo Tae-Yeon
Cha Soo-hyuk
Professor Ma (as Lee Jung-Sung)
Min Ji-seon
Shin Ae-Kyung (as Na Young Kim)
Na Ae-ri
Han Jeong-shik
Kook Young-Soo
Kim Hyun-Suk (as Yoo-An Jung)