Cast Members (21)
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Jun Ji-hyun
as Sim Chung / Se-hwa
20 episodes
Lee Min-ho
as Heo Joon-jae / Kim Dam-ryung
20 episodes
Shin Hye-sun
as Cha Si-a
20 episodes
Lee Hee-jun
as Jo Nam-doo / Park Moo
20 episodes
Shin Won-ho
as Tae-o
20 episodes
Hwang Shin-hye
as Kang Seo-hee
20 episodes
Sung Dong-il
as Ma Dae-young / Mr. Yang
20 episodes
Moon So-ri
as Ahn Jin-joo
20 episodes
Choi Jung-woo
as Heo Gil-joong
20 episodes
Na Young-hee
as Mo Yoo-ran
20 episodes
Lee Ji-hoon
as Heo Chi-hyun
20 episodes
Park Hae-soo
as Hong Dong-pyo
20 episodes
Krystal Jung
as Min-ji
20 episodes
Shin Eun-soo
as Young Sim Chung
20 episodes
Kal So-won
as Young Sim Chung
20 episodes
Jinyoung
as Young Heo Joon-jae
20 episodes
Jeon Jin-seo
as Young Heo Joon-jae
20 episodes
Carson Allen
as Mermaid
1 episode
Cho Jung-seok
as Yoo Jung-Hoon
2 episodes
Go Gyu-pil
as Han Sung-Tae
1 episode
Kim Yun-tae
as Lawyer
1 episode