Hierarchy (2024) featured a cast of 23 tracked actors. Of these, 23 (100%) are still alive today. The oldest surviving cast member is Park Sang-jong, age 63. This TV series starred Roh Jeong-eui and Lee Chae-min.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast23 members
| Person | Character | Status | DOB | Age | DOD | Age in 2024 |
|---|---|---|---|---|---|---|
 Roh Jeong-eui Jung Jae-i | Jung Jae-i | Living | 31/07/2001 | 25 | — | 23 |
 Lee Chae-min Kang Ha | Kang Ha | Living | 15/09/2000 | 26 | — | 24 |
 Kim Jae-won Kim Ri-an | Kim Ri-an | Living | 09/02/2001 | 25 | — | 23 |
 Chi Hae-won Yoon He-ra | Yoon He-ra | Living | 30/03/1998 | 28 | — | 26 |
 Lee Won-jeong Lee U-jin | Lee U-jin | Living | 14/02/2001 | 25 | — | 23 |
 Kwon Eun-bin Ye-ji | Ye-ji | Living | 06/01/2000 | 26 | — | 24 |
 Choi Won-young Jug Gi-yeong | Jug Gi-yeong | Living | 10/01/1976 | 50 | — | 48 |
 Bae Hae-seon Principal Park Hui-seon | Principal Park Hui-seon | Living | 08/05/1974 | 52 | — | 50 |
 Yoon Se-a An Hye-won | An Hye-won | Living | 02/01/1978 | 48 | — | 46 |
 Kim Tae-jeong Choi Yun-seok | Choi Yun-seok | Living | 21/01/1999 | 27 | — | 25 |
 Chae Seo-an Han Ji-su | Han Ji-su | Living | 03/12/1996 | 29 | — | 28 |
 Lee Seung-joon Yun Byeong-geun | Yun Byeong-geun | Living | 11/02/1973 | 53 | — | 51 |
 Kim Min-chul Kang In-han | Kang In-han | Living | 07/09/2000 | 26 | — | 24 |
 Seo Bum-june Nam Ju-won | Nam Ju-won | Living | 27/06/1997 | 29 | — | 27 |
 Lee Min-goo Baek Chan-min | Baek Chan-min | Living | 27/07/1992 | 34 | — | 32 |
 Pyo Young-seo Ryu Ba-da | Ryu Ba-da | Living | 01/03/1998 | 28 | — | 26 |
 Kim Jun-hyung Jung Jae-hyeok | Jung Jae-hyeok | Living | 18/10/2002 | 24 | — | 22 |
 Seo Jun Kim Seon-u | Kim Seon-u | Living | 09/03/2001 | 25 | — | 23 |
 Lee Do-guk Lee Han-jong | Lee Han-jong | Living | 05/10/1973 | 53 | — | 51 |
 Oh Seung-hee Director Kim | Director Kim | Living | 10/10/1995 | 31 | — | 29 |
 Lee Na-ra Song In-gyeong | Song In-gyeong | Living | 22/08/1980 | 46 | — | 44 |
Jo Hyeon-jin Lee Song-i | Lee Song-i | Living | 03/01/1976 | 50 | — | 48 |
 Park Sang-jong [Prime minister] | [Prime minister] | Living | 01/12/1962 | 63 | — | 62 |