The Legend of the Blue Sea

Gianna Jun (as Sim Chung / Se-Hwa) Lee Min-ho (as Heo Joon-Jae / Kim Dam-Ryung) Shin Hye-sun (as Cha Si-A) Lee Hee-jun (as Jo Nam-Doo / Park Moo) Shin Won-ho (as Tae-O) Hwang Shin-hye (as Kang Seo-Hee) Sung Dong-il (as Ma Dae-Young / Mr. Yang) Moon So-ri (as Ahn Jin-Joo) Choi Jung-woo (as Heo Gil-Joong) Na Young-hee (as Mo Yoo-Ran) Lee Ji-hoon (as Heo Chi-Hyun) Park Hae-soo (as Hong Dong-Pyo) Krystal Jung (as Min-Ji) Shin Eun-soo (as Sim Chung (Young)) Kal So-won (as Sim Chung (Child)) Jinyoung (as Heo Joon-Jae (Young)) Jeon Jin-seo (as Heo Joon-Jae (Child))

con man mermaid promise historical fiction naive first love evil stepmother based on myths, legends or folklore hidden identity past life interspecies romance joseon dynasty (1392–1910) cohabitation joseon