The Defects (2025) featured a cast of 14 tracked actors. Of these, 13 (93%) are still alive today and 1 have passed away. The oldest surviving cast member is Son Jong-hak, age 59. This TV series starred Yum Jung-ah and Won Jin-ah.
93% still with us· verified cast
Survivorship
Cast Reunion Index: 93% still living
Avg. Age at Death: 55 yrs
Deaths by Year
2025
Cast14 members
| Person | Character | Status | DOB | Age | DOD | Age in 2025 |
|---|---|---|---|---|---|---|
 Yum Jung-ah Kim Se-hee | Kim Se-hee | Living | 28/07/1972 | 54 | — | 53 |
 Won Jin-ah Kim Ah-hyun | Kim Ah-hyun | Living | 29/03/1991 | 35 | — | 34 |
 Choi Young-jun Wu Tae-sik | Wu Tae-sik | Living | 07/07/1980 | 46 | — | 45 |
 Dex Jeong-hyun | Jeong-hyun | Living | 09/06/1995 | 31 | — | 30 |
 Ahn Ji-ho Ju-ahn | Ju-ahn | Living | 05/01/2004 | 22 | — | 21 |
 Lee Na-eun So-mi | So-mi | Living | 05/05/1999 | 27 | — | 26 |
 Oh Seung-jun Seok-su | Seok-su | Living | 23/04/1999 | 27 | — | 26 |
 Kang Ji-yong Si-woo | Si-woo | Living | 31/05/2013 | 13 | — | 12 |
 Son Jong-hak Kwon Kang-man | Kwon Kang-man | Living | 20/06/1967 | 59 | — | 58 |
 Song Young-gyu Yoon Se-hoon | Yoon Se-hoon | Deceased | 18/04/1970 | 55 | 04/08/2025 | 55 |
| Living | 07/05/1970 | 56 | — | 55 | ||
 Shin Yeon-woo Young Kim A-hyeon | Young Kim A-hyeon | Living | 05/09/2012 | 14 | — | 13 |
 Kim Ji Yoo Young Kim Se-hee | Young Kim Se-hee | Living | 26/09/2012 | 13 | — | 13 |
 Ban Hye-young Client (eps 6) | Client (eps 6) | Living | 08/07/1985 | 41 | — | 40 |
