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 |
 Huh Joon-hoSoondol | Soondol |
 Shim Hye-jinOknim | Oknim |
 Min Kyung-jinTinker | Tinker |
 Lee Yong-yiOpsunne | Opsunne |
 Kim Bo-kyungNot listed | Not listed |
| CChoi Woo-hyeokKim Chul as a boy | Kim Chul as a boy |
| CChoi Hyung-inNopdotaek | Nopdotaek |
 Ahn So-youngPoltoknyeo | Poltoknyeo |
 Kim Yong-manHwang Sul-bong / Hwang Dong-pal | Hwang Sul-bong / Hwang Dong-pal |
 Lee Kyung-youngNot listed | Not listed |
 Dong Bang-wooNot listed | Not listed |