| Actor | Role |
|---|---|
 Kim Seung-hoJang Seong-hak | Jang Seong-hak |
 Hwang Jeong-sunMrs. Gwacheon | Mrs. Gwacheon |
 Jeon Young-sunSuk-jan | Suk-jan |
 Kim Seok-hunGab-jun | Gab-jun |
 Kim Wun-haEul-jun | Eul-jun |
 Choi Ji-heeBae-yeong | Bae-yeong |
 Heo Chang-kangHwang Hae-san | Hwang Hae-san |
| LLee Kwang-hoByeong-jun | Byeong-jun |
| KKim In-seonKid | Kid |
 Kim Chil-seongChief Detective | Chief Detective |
 Jeong Ae-ranMrs. Choi | Mrs. Choi |
 Ju Seon-taeExecutive Director Ju | Executive Director Ju |
 Dokgo SungBae-yeong's Brother | Bae-yeong's Brother |
 Lee Ye-minKim Su-i | Kim Su-i |
 Lim Hae-rimForeman | Foreman |
 Park Sang-ikMr. Yoon | Mr. Yoon |
 Kim Mi-seonBugler | Bugler |
 Kim Se-raSesame Seller | Sesame Seller |
 Yum Hea-sookSchoolmistress | Schoolmistress |
 Seok Un-aEnglish Teacher | English Teacher |
| HHam Guk-jeolMadame | Madame |
| KKim Mi-raMadame | Madame |
| SSong Hwa-chunDetective | Detective |
| PPark Seung-jinJudo Master | Judo Master |
| KKim Doo-anPrison Guard | Prison Guard |
 Eok SongCop | Cop |
| LLee Ji-yeonJin-su | Jin-su |
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