The Legend of the Blue Sea (2016) featured a cast of 36 tracked actors. Of these, 34 (97%) are still alive today and 1 have passed away. The oldest surviving cast member is Lee Ho-jae, age 85. This TV series starred Gianna Jun and Lee Min-ho.
97% still with us· verified cast94% of full cast · incl. 1 unverified
Survivorship
Cast Reunion Index: 97% still living
Avg. Age at Death: 68 yrs
Deaths by Year
2025
Cast36 members
| Person | Character | Status | DOB | Age | DOD | Age in 2016 |
|---|---|---|---|---|---|---|
 Gianna Jun Shim Cheong / Se-hwa | Shim Cheong / Se-hwa | Living | 30/10/1981 | 44 | — | 35 |
 Lee Min-ho Heo Joon-jae / Kim Dam-ryung | Heo Joon-jae / Kim Dam-ryung | Living | 22/06/1987 | 39 | — | 29 |
 Lee Hee-jun Jo Nam-doo / Park Moo | Jo Nam-doo / Park Moo | Living | 29/06/1979 | 47 | — | 37 |
 Shin Won-ho Tae-oh | Tae-oh | Living | 23/10/1991 | 34 | — | 25 |
 Shin Rin-a Seo Yoo-na | Seo Yoo-na | Living | 14/05/2009 | 17 | — | 7 |
 Shin Hae-sun Cha Shi-ah | Cha Shi-ah | Living | 31/08/1989 | 37 | — | 27 |
 Moon So-ri Ahn Jin-joo | Ahn Jin-joo | Living | 02/07/1974 | 52 | — | 42 |
 Na Young-hee Mo Yoo-ran | Mo Yoo-ran | Living | 03/03/1961 | 65 | — | 55 |
 Hwang Shin-hye Kang Seo-hee/Kang Ji-yeon | Kang Seo-hee/Kang Ji-yeon | Living | 16/04/1963 | 63 | — | 53 |
 Oh Yeon-ah Young Kang Seo-hee/Kang Ji-yeon/Hong Nan | Young Kang Seo-hee/Kang Ji-yeon/Hong Nan | Living | 01/12/1981 | 44 | — | 35 |
 Lee Ji-hoon Heo Chi-hyun | Heo Chi-hyun | Living | 29/10/1988 | 37 | — | 28 |
 Park Hae-soo Hong Dong-pyo | Hong Dong-pyo | Living | 21/11/1981 | 44 | — | 35 |
 Sung Dong-il Ma Dae-young / Yang Seung-gil | Ma Dae-young / Yang Seung-gil | Living | 27/04/1967 | 59 | — | 49 |
 Choi Jung-woo Heo Il-joong | Heo Il-joong | Deceased | 17/02/1957 | 68 | 27/05/2025 | 59 |
 Jinyoung Young Heo Joon-jae/Kim Dam-ryeong | Young Heo Joon-jae/Kim Dam-ryeong | Living | 22/09/1994 | 32 | — | 22 |
 Hong Jin-kyung Shim Cheong's Homeless Friend | Shim Cheong's Homeless Friend | Living | 23/12/1977 | 48 | — | 39 |
 Park Ji-il Manager Nam | Manager Nam | Living | 01/01/1960 | 66 | — | 56 |
 Lee Jae-won Cha Dong-shik | Cha Dong-shik | Living | 17/05/1985 | 41 | — | 31 |
 Shim Yi-young Young Moo Yoo-ran | Young Moo Yoo-ran | Living | 31/01/1980 | 46 | — | 36 |
 Shin Eun-soo Young Se-hwa | Young Se-hwa | Living | 22/10/2002 | 23 | — | 14 |
 Kim Sung-ryung Jang Jin-ok | Jang Jin-ok | Living | 08/02/1967 | 59 | — | 49 |
 Cho Jung-seok Yoo Jong-hoon | Yoo Jong-hoon | Living | 26/12/1980 | 45 | — | 36 |
 Choi Kwon Young Manager Nam | Young Manager Nam | Living | 25/12/1981 | 44 | — | 35 |
 Kal So-won Child Se-hwa | Child Se-hwa | Living | 14/08/2006 | 20 | — | 10 |
 Jeon Jin-seo Child Heo Joon-jae/Kim Dam-ryeong | Child Heo Joon-jae/Kim Dam-ryeong | Living | 28/05/2006 | 20 | — | 10 |
 Lee Ho-jae Professor Jin Kyung-won/Fortune Teller | Professor Jin Kyung-won/Fortune Teller | Living | 02/05/1941 | 85 | — | 75 |
 Seo Dong-won Aquarium Manager | Aquarium Manager | Living | 04/04/1979 | 47 | — | 37 |
 Krystal Jung Flight Attendant | Flight Attendant | Living | 24/10/1994 | 31 | — | 22 |
 Kim Hye-yoon Jang Jin-ok's Daughter | Jang Jin-ok's Daughter | Unverified | — | — | — | — |
 Sung Chang-hoon Mr. Yang's Subordinate | Mr. Yang's Subordinate | Living | 22/04/1979 | 47 | — | 37 |
 Ko Kyu-pil Bodyguard | Bodyguard | Living | 02/05/1982 | 44 | — | 34 |
 Ahn Jae-hong Missionary Thomas | Missionary Thomas | Living | 31/03/1986 | 40 | — | 30 |
 Park Jin-joo Nurse | Nurse | Living | 24/12/1988 | 37 | — | 28 |
 Jeong Yu-mi Kim Hee-jin | Kim Hee-jin | Living | 23/02/1984 | 42 | — | 32 |
 Kim Seul-gi Mermaid | Mermaid | Living | 10/10/1991 | 34 | — | 25 |
 Carson Allen Mermaid | Mermaid | Living | 18/03/1995 | 31 | — | 21 |