The Legend of the Blue Sea Season 1

01. Episode 1
Nov 16, 2016

In the year 1598, Dam Ryeong stayed at Yang's house. At the little pond, he met mermaid's eyes. Dam Ryeong felt sorry for the mermaid so he sent mermaid to the sea under the guise of Yang's crime. Hence, their long relationship started.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

Carson Allen
Carson Allen

Mermaid

02. Episode 2
Nov 17, 2016

Joon Jae becomes soft-hearted after seeing mermaid waiting for him so he brings the mermaid to his house. The mermaid is addicted to the new world of Joon Jae's laptop. Meanwhile, Joon Jae and the mermaid become fugitive due to the chase of Jin Ok.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

03. Episode 3
Nov 23, 2016

Jun Jae was left alone with a jade bracelet and a grain of pearl after falling from a cliff, he barely managed to arrive in Seoul and hurried in to resolve a fraud case of madam. Meanwhile, Mermaid begins a rough journey to Seoul to keep the promise.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

04. Episode 4
Nov 24, 2016

Jun Jae, who had never seen a mermaid before felt a strange sense of vision and helped her escape from the aquarium... On the other hand, a murder happened next door to Jun Jae while the whereabouts of Ma Dae-young is unknown for three months.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

05. Episode 5
Nov 30, 2016

Jun Jae feels strange about himself having weird feeling toward Sim Cheong. He warns Sim Cheong that if she does not tell him what happened in Spain by tomorrow, she should leave home. Sim Cheong fall asleep with a wish that the next day would not come.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

06. Episode 6
Dec 01, 2016

Jun Jae fall in a panic state after seeing Cheong is bedridden at hospital emergency room. Chi Hyeon receives investigation at the hospital. Meanwhile, Nam finds a tape recorder that is attached to a black box inside of Chairman Huh's car.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

07. Episode 7
Dec 07, 2016

Having lost some memory, Jun Jae is confused; Hong encounters Ma Dae Young.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

Cho Jung-seok
Cho Jung-seok

Yoo Jong-Hoon

08. Episode 8
Dec 08, 2016

Cheong is annoyed by Jung Hoon's advice; Jun Jae feels strange about Nam's loss of communication.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

Cho Jung-seok
Cho Jung-seok

Yoo Jong-Hoon

09. Episode 9
Dec 14, 2016

Jun Jae is relieved to know that Cheong is with him; Jun Jae discovers that the man who threatened him was an escaped prisoner.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

Go Gyu-pil
Go Gyu-pil

Han Seong-Tae

10. Episode 10
Dec 15, 2016

Jun Jae is troubled by Kim Dam Ryeong's identity; Jun Jae and Nam Doo receive an invitation from Jin Joo.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

11. Episode 11
Dec 21, 2016

Cheong finds out that Jun Jae is a swindler; Jun Jae focuses on finding Cheong; Hong finds out about Ma's past.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

12. Episode 12
Dec 22, 2016

Jin Joo decides to meet with Seo Hee again; Jun Jae is caught by Hong.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

13. Episode 13
Dec 28, 2016

Si Ah and Yu Ran visit Jun Jae's house; Jun Jae discovers something strange.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

14. Episode 14
Jan 04, 2017

With the help of Professor Jin, Jun Jae finds out that he is on the same path as his previous life so he decides to protect Cheong.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

15. Episode 15
Jan 05, 2017

After learning about Cheong's terminally ill heart, Jun Jae cannot conceal his sadness.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

16. Episode 16
Jan 11, 2017

Jun Jae and Yu Ran have a talk; Nam Doo questions Yu Ran; Chi Hyeon asks Seo Hee about his biological father.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

17. Episode 17
Jan 12, 2017

When Cheong sees the end of her previous life with Jun Jae, she becomes confused.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

18. Episode 18
Jan 18, 2017

After Chairman Huh's death, Jun Jae and Hong speed up their investigation; Chi Hyeon approaches Nam Doo.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

19. Episode 19
Jan 19, 2017

Jun Jae suffers from unexpected circumstances; Ma Dae Young visits Jin in an attempt to regain his memory.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

20. Episode 20
Jan 25, 2017

Before returning to the sea, Cheong says farewell to people; Jun Jae does some embarrassing acts.

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

The Legend of the Blue Sea Season 1: Episode 21
21. Episode 21
Nov 20, 2016

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)

The Legend of the Blue Sea Season 1: Episode 22
22. Episode 22
Nov 20, 2016

Jun Ji-hyun
Jun Ji-hyun

Sim Chung/Se Hwa

Lee Min-ho 
Lee Min-ho 

Heo Joon-Jae / Kim Moo

Lee Hee-jun
Lee Hee-jun

Jo Nam-Doo

Shin Won-ho
Shin Won-ho

Tae-Oh

Lee Ji-hoon
Lee Ji-hoon

Heo Chi-Hyun

Hwang Shin-hye
Hwang Shin-hye

Kang Seo-Hee

Choi Jeong-woo
Choi Jeong-woo

Heo Gil-Joong

Na Young-hee
Na Young-hee

Mo Yoo-Ran

Shin Hye-sun
Shin Hye-sun

Cha Si-A

Moon So-ri
Moon So-ri

Ahn Jin-Joo

Sung Dong-il
Sung Dong-il

Ma Dae-Young / Mr. Yang

Park Hae-soo
Park Hae-soo

Hong Dong-Pyo

Krystal Jung
Krystal Jung

Min-Ji

Shin Eun-soo
Shin Eun-soo

Sim Chung (young)

Kal So-won
Kal So-won

Sim Chung (child)

Park Jin-young
Park Jin-young

Heo Joon-Jae (young)

Jeon Jin-seo
Jeon Jin-seo

Heo Joon-Jae (child)