Yunjin Kim ( 김윤진 )

Miss Ma / Ma Ji Won

Jung Woong-in ( 정웅인 )

Han Tae-Kyu

Ko Sung-hee ( 고성희 )

Seo Eun-Ji

Sung Ji-ru ( 성지루 )

Jo Chang-Gil

Yoon Song-ah ( Yoon Song-ah )

Teacher Yang

Moon Hee-kyung ( 문희경 )

Madame Park

CNU ( CNU )

Bae Do-Hwan

Song Young-gyu ( 송영규 )

Jang Cheol-Min

Lee Ha-yul ( 이하율 )

Detective Cheon

Choi Seung-hoon ( Choi Seung-hoon )

Choi Woo-Joon

Lee Ye-won ( Lee Ye-won )

Jang Min-Seo

You Il-han ( You Il-han )

Chae Joong-cheol

Yoon Hae-young ( 윤해영 )