An imprisoned ex-police inspector discovers that the entire penitentiary is controlled by an inmate running a crime syndicate and becomes part of the crime empire.
| Actor | Role |
|---|---|
 Han Suk-kyuJung Ik-ho | Jung Ik-ho |
 Kim Rae-wonSong Yoo-gun | Song Yoo-gun |
 Jung Woong-inPrison Director Kang | Prison Director Kang |
 Jo Jae-yunHong-pyo | Hong-pyo |
 Shin Sung-rokChang-gil | Chang-gil |
 Jeon Bae-sooChief of Security | Chief of Security |
 Lee Kyung-youngDirector Bae | Director Bae |
 Kang Shin-ilDirector Noh | Director Noh |
 Kim Sung-kyunDr. Kim | Dr. Kim |
 Park Won-sangManager Jung | Manager Jung |
 Jung Suk-wonBeom-mo | Beom-mo |
 Han Joo-wanJong-dae | Jong-dae |
 Yu Ha-junYong-chul | Yong-chul |
 Park Jin-wooMr. Oh | Mr. Oh |
 Lee Seung-jinPrisoner | Prisoner |
 Yeon Song-haMistress | Mistress |
 Kim Chan-hyungSong Yoo-cheol | Song Yoo-cheol |
 Yoon Byung-heeAgu | Agu |
 Jong HoPrisoner | Prisoner |
 Na Kwang-hoonJang Min-gi | Jang Min-gi |
 Yoo Jeong-hoSeo Gi-tae | Seo Gi-tae |
 Ha Soo-hoChang-gil's Group Member | Chang-gil's Group Member |
 Kyul HwiGye-sik | Gye-sik |
 Kim Joo-hwangPolice Executive | Police Executive |
 Kim Moon-jongChang-gil's Gang | Chang-gil's Gang |
 Hyun Bong-sikAgu's man | Agu's man |
| JJo Yong-jaeJailer | Jailer |