- Lee Sung-jae
- Yun-ju
- Bae Doona
- Hyun-nam
- Kim Ho-jung
- Eun-sil
- Byun Hee-Bong
- Janitor
- Go Su-hee
- Jang-mi (Hyun-nam's friend)
- Kim Roe-ha
- Shadow Man
- Jin-gu Kim
- Granny
- Im Sang-soo
- Senior Joon-pyo
- Seong Jeong-seon
- Aengbali
- Jae-ha Jo
- Aengbali's baby
- Chae-rin Hwang
- Seul-gi
- Sookyung Lee
- Seul-gi's mother
- Hyuk-Poon Kwon
- Management office chief
- Yeongi Lee
- Management office old-timer
- Yong-ok Kim
- Management office director
- Se-Geum Oh
- Grandma's relative
- Seong-hae Kang
- Nam Goong-myeon
- Jin-won Lee
- College dean
