Two men have returned to their hometown (the titular island) from Seoul to bury the father of one of them, but the islanders vehemently refuse their request, triggering memories of their childhood before and during the Korean War.
| Actor | Role |
|---|---|
 Ahn Sung-kiKim Chul | Kim Chul |
 Moon Sung-keunMoon Dok-bae / Moon Chae-ku | Moon Dok-bae / Moon Chae-ku |
 Shim Hye-jinOknim | Oknim |
 Ahn So-youngPoltoknyeo | Poltoknyeo |
 Lee Yong-yiOpsunne | Opsunne |
 Kim Yong-manHwang Sul-bong / Hwang Dong-pal | Hwang Sul-bong / Hwang Dong-pal |
 Huh Joon-hoSoondol | Soondol |
 Kim Il-wooNam | Nam |
 Min Kyung-jinTinker | Tinker |
| PPark Bu-yangVillage head | Village head |
| CChoi Woo-hyeokKim Chul as a boy | Kim Chul as a boy |
| CChoi Hyung-inNopdotaek | Nopdotaek |
 Kim Bo-kyungNot listed | Not listed |
 Lee Kyung-youngNot listed | Not listed |
 Dong Bang-wooNot listed | Not listed |
 Yoo Soon-chulNot listed | Not listed |
 Kang Sun-sookNot listed | Not listed |
 Lee Yong-nyeoNot listed | Not listed |
 Park Yong-palNot listed | Not listed |
 Lim Yae-simNot listed | Not listed |
| CCho Hak-jaNot listed | Not listed |