A mermaid from the Joseon period ends up in present-day Seoul, where she crosses paths with a swindler who may have ties to someone from her past.
Gianna Jun
Shim Cheong / Se-hwa
Lee Min-ho
Heo Joon-jae / Kim Dam-ryung
Lee Hee-jun
Jo Nam-doo / Park Moo
Shin Won-ho
Tae-oh
Shin Rin-a
Seo Yoo-na
Shin Hae-sun
Cha Shi-ah
Moon So-ri
Ahn Jin-joo
Na Young-hee
Mo Yoo-ran
Hwang Shin-hye
Kang Seo-hee/Kang Ji-yeon
Oh Yeon-ah
Young Kang Seo-hee/Kang Ji-yeon/Hong Nan
Lee Ji-hoon
Heo Chi-hyun
Park Hae-soo
Hong Dong-pyo
Sung Dong-il
Ma Dae-young / Yang Seung-gil
Choi Jung-woo
Heo Il-joong
Jinyoung
Young Heo Joon-jae/Kim Dam-ryeong
Hong Jin-kyung
Shim Cheong's Homeless Friend
Park Ji-il
Manager Nam
Lee Jae-won
Cha Dong-shik
Shim Yi-young
Young Moo Yoo-ran
Shin Eun-soo
Young Se-hwa
