The Legend of the Blue Sea

전지현

Shim Cheong / Se-hwa

이민호

Heo Joon-jae / Kim Dam-ryung

이희준

Jo Nam-doo / Park Moo

Shin Won-ho

Tae-oh

Shin Rin-a

Seo Yoo-na

신혜선

Cha Shi-ah

Moon So-ri

Ahn Jin-joo

나영희

Mo Yoo-ran

황신혜

Kang Seo-hee/Kang Ji-yeon

오연아

Young Kang Seo-hee/Kang Ji-yeon/Hong Nan

이지훈

Heo Chi-hyun

박해수

Hong Dong-pyo

성동일

Ma Dae-young / Yang Seung-gil

최정우

Heo Il-joong

진영

Young Heo Joon-jae/Kim Dam-ryeong

홍진경

Shim Cheong's Homeless Friend