The Blue Sea (2017) featured a cast of 3 tracked actors. Of these, 3 (100%) are still alive today. The oldest surviving cast member is Jo Ki-sung, age 35. This TV series starred Jeong Ye-in and Jo Ki-sung.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast3 members
| Person | Character | Status | DOB | Age | DOD | Age in 2017 |
|---|---|---|---|---|---|---|
 Jeong Ye-in Jo Hae-ji | Jo Hae-ji | Living | 04/06/1998 | 28 | — | 19 |
 Jo Ki-sung Jung Cha-ki | Jung Cha-ki | Living | 31/05/1991 | 35 | — | 26 |
 Koo Ja-sung Sung Ki-su | Sung Ki-su | Living | 22/09/1992 | 34 | — | 25 |