인어공주

전도연

Na-young / Young Yeon-soon

박해일

Jin-kook

고두심

Yeon-soon

김봉근

Father

อี ซ็อน-กยุน

Do-hyeon

박명신

Bathhouse Owner

신동환

New Postman

김추월

BBQ Restaurant Owner

윤가현

Diver 2

อีซองมิน

Fruit Store Owner

이한위

Jo Young-ho

민복기

Father's colleague

신삼봉

Village head

주진모

Mourner

김부선

Sister Jung

최시연

Fighter