Full cast of Story of a Mermaid

Jang Seo-hee

Eun Ariyoung

246 episodes

Woo Hee-jin

Eun Ye-young

246 episodes

Kim Sung-min

Lee Joo-wang

246 episodes

Jung Bo-seok

Mamajun

246 episodes

Park Tam-hee

Soo-rim

246 episodes

Kim Byeong-gi

Lee Sung-soo

246 episodes

Choi Sun-ja

Dong-jin's mother

246 episodes

Jeon Mi-seon

Seong-mi

246 episodes

Jung Young-sook

Han Gyeong-hye

246 episodes

Park Keun-hyong

Eun Jin-seob

246 episodes

Han Hye-suk

Shim Soo-jung

246 episodes

Sa Mi-ja

Geum Ok-seon

246 episodes

Kim Yong-rim

Geum Sila

246 episodes

Goh Doo-shim

Jo Su-ah

246 episodes

Sa Kang

Yoon Jin-gyeong

246 episodes