Secret Door (2014) featured a cast of 27 tracked actors. Of these, 27 (100%) are still alive today. The oldest surviving cast member is Jeon Kuk-hwan, age 74. This TV series starred Lee Je-hoon and Kim You-jung.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast27 members
| Person | Character | Status | DOB | Age | DOD | Age in 2014 |
|---|---|---|---|---|---|---|
 Lee Je-hoon Crown Prince Sado | Crown Prince Sado | Living | 04/07/1984 | 42 | — | 30 |
 Kim You-jung Seo Ji-dam | Seo Ji-dam | Living | 22/09/1999 | 27 | — | 15 |
 Yoon So-hee Seo Ji-dam / Park Bingae | Seo Ji-dam / Park Bingae | Living | 07/05/1993 | 33 | — | 21 |
 Han Suk-kyu King Yeongjo | King Yeongjo | Living | 03/11/1964 | 61 | — | 50 |
 Park Eun-bin Lady Hyegyeong | Lady Hyegyeong | Living | 04/09/1992 | 34 | — | 22 |
 Kim Min-jong Na Chul-joo | Na Chul-joo | Living | 23/03/1972 | 54 | — | 42 |
 Lee Won-jong Park Mun-su | Park Mun-su | Living | 01/01/1966 | 60 | — | 48 |
 Kwon Hae-hyo Seo Kyoon | Seo Kyoon | Living | 06/11/1965 | 60 | — | 49 |
 Jeon Kuk-hwan Lee Jong-sung | Lee Jong-sung | Living | 21/07/1952 | 74 | — | 62 |
 Jang Hyun-sung Hong Gye-hui | Hong Gye-hui | Living | 17/07/1970 | 56 | — | 44 |
 Uhm Hyo-seop Min Baek-sang | Min Baek-sang | Living | 24/10/1966 | 59 | — | 48 |
 Kim Ha-kyoon Kim Sang-ro | Kim Sang-ro | Living | 23/08/1959 | 67 | — | 55 |
 Choi Won-young Chae Je-gong | Chae Je-gong | Living | 10/01/1976 | 50 | — | 38 |
 Seo Jun-young Shin Heung-bok | Shin Heung-bok | Living | 24/04/1987 | 39 | — | 27 |
 Ha Seung-lee Queen Jeongsun | Queen Jeongsun | Living | 09/01/1995 | 31 | — | 19 |
 Park Hyo-ju Woon-shim | Woon-shim | Living | 08/10/1982 | 43 | — | 32 |
 Kim Tae-hun Kang Pil-jae | Kang Pil-jae | Living | 26/05/1975 | 51 | — | 39 |
 Jeong Gyu-su Yang Soon-Man | Yang Soon-Man | Living | 05/09/1957 | 69 | — | 57 |
 Kwak Hee-sung Kim Moo | Kim Moo | Living | 18/04/1990 | 36 | — | 24 |
 Jo Woo-jin Lee Dal-seong | Lee Dal-seong | Living | 16/01/1979 | 47 | — | 35 |
 Kim Woo-seok Lee Seon [Young] / Lee San [Young] | Lee Seon [Young] / Lee San [Young] | Living | 25/06/1996 | 30 | — | 18 |
 Lee Won-jae Kang Seo-won | Kang Seo-won | Living | 22/01/1978 | 48 | — | 36 |
 Kim Hyun Jang Hwa Won | Jang Hwa Won | Living | 27/03/1971 | 55 | — | 43 |
 Kim Chang-wan Kim Taek | Kim Taek | Living | 22/02/1954 | 72 | — | 60 |
 Son Byung-ho Kim Sung Ik | Kim Sung Ik | Living | 25/08/1962 | 64 | — | 52 |
 Yoon Seo-hyun Cheon Seung Se | Cheon Seung Se | Living | 02/11/1970 | 55 | — | 44 |
 Park So-eun Shin Go-eun | Shin Go-eun | Living | 07/01/1996 | 30 | — | 18 |