郭时旸

Si-yang Kwak

饰：申勇柱

李在俊

이재준

饰：韩奇雄

崔俊河

饰：高基泽

金昌焕

Chang-hwan Kim

饰：吴成真

李益俊

이익준

饰：宋俊宇

朴美贤

Mi-hyun Park

饰：勇柱母亲

郑仁基

Roe-ha Kim

饰：奇雄父亲

李在浚

이재준

饰：李志雄

Si-Yang Kwak

饰：Yong-ju Shin

Jun-ha Choi

饰：Gi-taek

Ik-joon Lee

饰：Joon-woo

李伊庚

Yi-Kyeong Lee

饰：(兼差的學生)

金贤成

Hyun-sung Kim

饰：Homeroom teacher

崔俊熙

최준하

朴真雅

Jin-a Park

宋智浩

Ji-ho Song

饰：Jae-yeon

Mi-hyeon Park

饰：Yong-ju's mother,(as Park Mi-Hyun)

朴赫权

박혁권

饰：Big guy

Tae-Hee Won

Tae-Hee Won